PHP - Function Reference - Part03 to end

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string apache_note(string note_name[, string note_value]) 3.0.2: Gets and sets Apache request notes
array apache_request_headers(void) 4.3.0: Fetches all HTTP request headers
array apache_response_headers(void) 4.3.0: Fetches all HTTP response headers
bool apache_setenv(string variable, string value[, bool walk_to_top]) 4.1.0: Sets an Apache subprocess_env variable
array array([mixed var[, ...]]) 3.0: Creates an array
array array_change_key_case(array input[, int case=CASE_LOWER]) 4.1.0: Returns an array with all string keys lowercased (or uppercased)
array array_chunk(array input, int size[, bool preserve_keys]) 4.1.0: Splits array into chunks

array array_count_values(array input) 4.0: Returns the value as key and the frequency of that value in input as value
array array_diff(array arr1, array arr2[, array ...]) 4.0.1: Returns the entries of arr1 that have values that are not present in any of the others arguments
array array_fill(int start_key, int num, mixed val) 4.1.0: Creates an array containing num elements starting with index start_key each initialized to val
array array_filter(array input[, mixed callback]) 4.0.6: Filters elements from the array via the callback
array array_flip(array input) 4.0: Returns array with key/value pairs flipped
array array_intersect(array arr1, array arr2[, array ...]) 4.0.1: Returns the entries of arr1 that have values that are present in all the other arguments
bool array_key_exists(mixed key, array search) 4.1.0: Checks if the given key or index exists in the array
array array_keys(array input[, mixed search_value]) 4.0: Returns just the keys from the input array, optionally for only the specified search_value
array array_map(mixed callback, array input1[, array input2 ,...]) 4.0.6: Applies the callback to the elements in the given arrays
array array_merge(array arr1, array arr2[, array ...]) 4.0: Merges elements from passed arrays into one array
array array_merge_recursive(array arr1, array arr2[, array ...]) 4.0.1: Recursively merges elements from passed arrays into one array
bool array_multisort(array ar1[, SORT_ASC|SORT_DESC[, SORT_REGULAR|SORT_NUMERIC|SORT_STRING]][, array ar2[, SORT_ASC|SORT_DESC[, SORT_REGULAR|SORT_NUMERIC|SORT_STRING]], ...]) 4.0: Sorts multiple arrays at once similar to how ORDER BY clause works in SQL
array array_pad(array input, int pad_size, mixed pad_value) 4.0: Returns a copy of input array padded with pad_value to size pad_size
mixed array_pop(array stack) 4.0: Pops an element off the end of the array
int array_push(array stack, mixed var[, mixed ...]) 4.0: Pushes elements onto the end of the array
mixed array_rand(array input[, int num_req]) 4.0: Returns key/keys for random entry/entries in the array
mixed array_reduce(array input, mixed callback[, int initial]) 4.0.5: Iteratively reduces the array to a single value via the callback
array array_reverse(array input[, bool preserve keys]) 4.0: Returns input as a new array with the order of the entries reversed
mixed array_search(mixed needle, array haystack[, bool strict]) 4.0.5: Searches the array for a given value and returns the corresponding key if successful
mixed array_shift(array stack) 4.0: Pops an element off the beginning of the array
array array_slice(array input, int offset[, int length]) 4.0: Returns elements specified by offset and length
array array_splice(array input, int offset[, int length[, array replacement]]) 4.0: Removes the elements designated by offset and length and replaces them with supplied array
mixed array_sum(array input) 4.0.4: Returns the sum of the array entries
array array_unique(array input) 4.0.1: Removes duplicate values from array
int array_unshift(array stack, mixed var[, mixed ...]) 4.0: Pushes elements onto the beginning of the array
array array_values(array input) 4.0: Returns just the values from the input array
bool array_walk(array input, string funcname[, mixed userdata]) 3.0.3: Applies a user function to every member of an array
bool arsort(array array_arg[, int sort_flags]) 3.0: Sorts an array in reverse order and maintains index association
float asin(float number) 3.0: Returns the arc sine of the number in radians
float asinh(float number) 4.1.0: Returns the inverse hyperbolic sine of the number (i.e., the value whose hyperbolic sine is number)
bool asort(array array_arg[, int sort_flags]) 3.0: Sorts an array and maintains index association
int aspell_check(aspell int, string word) 3.0.7: Returns if word is valid
int aspell_check_raw(aspell int, string word) 3.0.7: Returns if word is valid, ignoring case and without trying to trim it in any way
int aspell_new(string master[, string personal]) 3.0.7: Loads a dictionary
array aspell_suggest(aspell int, string word) 3.0.7: Returns an array of spelling suggestions
int assert(string|bool assertion) 4.0: Checks if assertion is false
mixed assert_options(int what[, mixed value]) 4.0: Sets or gets the various assert flags
float atan(float number) 3.0: Returns the arc tangent of the number in radians
float atan2(float y, float x) 3.0.5: Returns the arc tangent of y/x, with the resulting quadrant determined by the signs of y and x
float atanh(float number) 4.1.0: Returns the inverse hyperbolic tangent of the number (i.e., the value whose hyperbolic tangent is number)
string base64_decode(string str) 3.0: Decodes string using MIME base64 algorithm
string base64_encode(string str) 3.0: Encodes string using MIME base64 algorithm
string base_convert(string number, int frombase, int tobase) 3.0.6: Converts a number in a string from any base to any other base (where both bases are less than or equal to 36)
string basename(string path[, string suffix]) 3.0: Returns the filename component of the path
string bcadd(string left_operand, string right_operand[, int scale]) 3.0: Returns the sum of two arbitrary precision numbers
string bccomp(string left_operand, string right_operand[, int scale]) 3.0: Compares two arbitrary precision numbers
string bcdiv(string left_operand, string right_operand[, int scale]) 3.0: Returns the quotient of two arbitrary precision numbers (division)
string bcmod(string left_operand, string right_operand) 3.0: Returns the modulus of the two arbitrary precision operands
string bcmul(string left_operand, string right_operand[, int scale]) 3.0: Returns the product of two arbitrary precision numbers
string bcpow(string x, string y[, int scale]) 3.0: Returns the value of an arbitrary precision number raised to the power of another arbitrary precision number
string bcscale(int scale) 3.0: Sets default scale parameter for all BC math functions
string bcsqrt(string operand[, int scale]) 3.0: Returns the square root of an arbitrary precision number
string bcsub(string left_operand, string right_operand[, int scale]) 3.0: Returns the difference between two arbitrary precision numbers
string bin2hex(string data) 3.0.9: Converts the binary representation of data to hexadecimal
string bind_textdomain_codeset (string domain, string codeset) 4.1.0: Specifies the character encoding in which the messages from the DOMAIN message catalog will be returned
int bindec(string binary_number) 3.0: Returns the decimal equivalent of a binary number
string bindtextdomain(string domain_name, string dir) 3.0.7: Binds to the text domain domain_name, looking for translations in dir; returns the current domain
break 3.0: Language keyword used inside switch statements and loops
string bzcompress(string source[, int blocksize100k[, int workfactor]]) 4.0.4: Compresses a string into BZip2 encoded data
string bzdecompress(string source[, int small]) 4.0.4: Decompresses BZip2 compressed data
int bzerrno(resource bz) 4.0.4: Returns the error number
array bzerror(resource bz) 4.0.4: Returns the error number and error string in an associative array
string bzerrstr(resource bz) 4.0.4: Returns the error string
resource bzopen(string|int file|fp, string mode) 4.0.4: Opens a new BZip2 stream
string bzread(int bz[, int length]) 4.0.4: Reads up to length bytes from a BZip2 stream, or 1,024 bytes if length is not specified
int cal_days_in_month(int calendar, int month, int year) 4.1.0: Returns the number of days in a month for a given year and calendar
array cal_from_jd(int jd, int calendar) 4.1.0: Converts from Julian day count to a supported calendar and returns extended information
array cal_info(int calendar) 4.1.0: Returns information about a particular calendar
int cal_to_jd(int calendar, int month, int day, int year) 4.1.0: Converts from a supported calendar to Julian day count
mixed call_user_func(string function_name[, mixed parmeter][, mixed ...]) 3.0.3: Calls a user function that is the first parameter
mixed call_user_func_array(string function_name, array parameters) 4.0.4: Calls a user function that is the first parameter with the arguments contained in array
mixed call_user_method(string method_name, mixed object[, mixedparameter][, mixed ...]) 3.0.3: Calls a user method on a specific object or class
mixed call_user_method_array(string method_name, mixed object, array params) 4.0.5: Calls a user method on a specific object or class using a parameter array
case arg: 3.0: Language keyword used inside a switch statement
float ceil(float number) 3.0: Returns the next highest integer value of the number
bool chdir(string directory) 3.0: Changes the current directory
bool checkdate(int month, int day, int year) 3.0: Returns true if passed a valid date in the Gregorian calendar
int checkdnsrr(string host[, string type]) 3.0: Checks DNS records corresponding to a given Internet host name or IP address
bool chgrp(string filename, mixed group) 3.0: Changes file group
bool chmod(string filename, int mode) 3.0: Changes file mode
bool chown (string filename, mixed user) 3.0: Changes file owner
string chr(int ascii) 3.0: Converts ASCII code to a character
bool chroot(string directory) 4.0.5: Changes root directory
string chunk_split(string str[, int chunklen[, string ending]]) 3.0.6: Returns split line
class class_name 3.0: Language keyword that defines a class
bool class_exists(string classname) 4.0: Checks if the class exists
void clearstatcache(void) 3.0: Clears file stat cache
void closedir([resource dir_handle]) 3.0: Closes directory connection identified by dir_handle
bool closelog(void) 3.0: Closes connection to system logger
array compact(mixed var_names[, mixed ...]) 4.0: Creates a hash containing variables and their values
int connection_aborted(void) 3.0.7: Returns true if client disconnected
int connection_status(void) 3.0.7: Returns the connection status bitfield
mixed constant(string const_name) 4.0.4: Returns the associated value, given the name of a constant
continue 3.0: Language keyword used inside loops to skip to the next iteration
bool copy(string source_file, string destination_file) 3.0: Copies a file
float cos(float number) 3.0: Returns the cosine of the number in radians
float cosh(float number) 4.1.0: Returns the hyperbolic cosine of the number
int count(mixed var[, int mode]) 3.0: Counts the number of elements in a variable (usually an array)
mixed count_chars(string input[, int mode]) 4.0: Returns information about what characters are used in input
string crack_check([int dictionary,] string password) 4.0.5: Performs an obscure check with the given password
string crack_closedict([int link_identifier]) 4.0.5: Closes an open cracklib dictionary
string crack_getlastmessage(void) 4.0.5: Returns the message from the last obscure check
string crack_opendict(string dictionary) 4.0.5: Opens a new cracklib dictionary
string crc32(string str) 4.0.1: Calculates the crc32 polynomial of a string
string create_function(string args, string code) 4.0.1: Creates an anonymous function and returns its name
string crypt(string str[, string salt]) 3.0: Encrypts a string
bool ctype_alnum(mixed c) 4.0.4: Checks for alphanumeric character(s)
bool ctype_alpha(mixed c) 4.0.4: Checks for alphabetic character(s)
bool ctype_cntrl(mixed c) 4.0.4: Checks for control character(s)
bool ctype_digit(mixed c) 4.0.4: Checks for numeric character(s)
bool ctype_graph(mixed c) 4.0.4: Checks for any printable character(s) except space
bool ctype_lower(mixed c) 4.0.4: Checks for lowercase character(s)
bool ctype_print(mixed c) 4.0.4: Checks for printable character(s)
bool ctype_punct(mixed c) 4.0.4: Checks for any printable character that is not whitespace or an alphanumeric character
bool ctype_space(mixed c) 4.0.4: Checks for whitespace character(s)
bool ctype_upper(mixed c) 4.0.4: Checks for uppercase character(s)
bool ctype_xdigit(mixed c) 4.0.4: Checks for character(s) representing a hexadecimal digit
void curl_close(resource ch) 4.0.2: Closes a CURL session
int curl_errno(resource ch) 4.0.3: Returns an integer containing the last error number
string curl_error(resource ch) 4.0.3: Returns a string contain the last error for the current session
bool curl_exec(resource ch) 4.0.2: Performs a CURL session
string curl_getinfo(resource ch, int opt) 4.0.4: Gets information regarding a specific transfer
resource curl_init([string url]) 4.0.2: Initializes a CURL session
bool curl_setopt(resource ch, string option, mixed value) 4.0.2: Sets an option for a CURL transfer
string curl_version(void) 4.0.2: Returns the CURL version string.
mixed current(array array_arg) 3.0: Returns the element currently pointed to by the internal array pointer
string date(string format[, int timestamp]) 3.0: Formats a local time/date
void dba_close(int handle) 3.0.8: Closes the database
bool dba_delete(string key, int handle) 3.0.8: Deletes the entry associated with key
bool dba_exists(string key, int handle) 3.0.8: Checks if the specified key exists
string dba_fetch(string key, int handle) 3.0.8: Fetches the data associated with key
string dba_firstkey(int handle) 3.0.8: Resets the internal key pointer and returns the first key
bool dba_insert(string key, string value, int handle) 3.0.8: Inserts value as key; returns false if key exists already
string dba_nextkey(int handle) 3.0.8: Returns the next key
int dba_open(string path, string mode, string handlername[, string ...]) 3.0.8: Opens path using the specified handler in specified mode
bool dba_optimize(int handle) 3.0.8: Optimizes database
int dba_popen(string path, string mode, string handlername[, string ...]) 3.0.8: Opens path persistently using the specified handler in specified mode
bool dba_replace(string key, string value, int handle) 3.0.8: Inserts value as key; replaces key if key exists already
bool dba_sync(int handle) 3.0.8: Synchronizes database
string dblist(void) 3.0: Describes the DBM-compatible library being used
bool dbmclose(int dbm_identifier) 3.0: Closes a DBM database
int dbmdelete(int dbm_identifier, string key) 3.0: Deletes the value for a key from a DBM database
int dbmexists(int dbm_identifier, string key) 3.0: Tells if a value exists for a key in a DBM database
string dbmfetch(int dbm_identifier, string key) 3.0: Fetches a value for a key from a DBM database
string dbmfirstkey(int dbm_identifier) 3.0: Retrieves the first key from a DBM database
int dbminsert(int dbm_identifier, string key, string value) 3.0: Inserts a value for a key in a DBM database
string dbmnextkey(int dbm_identifier, string key) 3.0: Retrieves the next key from a DBM database
int dbmopen(string filename, string mode) 3.0: Opens a DBM database
int dbmreplace(int dbm_identifier, string key, string value) 3.0: Replaces the value for a key in a DBM database
bool dbx_close(dbx_link_object dbx_link) 4.0.6: Closes an open connection/database
int dbx_compare(array row_x, array row_y, string columnname[, int flags]) 4.1.0: Compares two rows for sorting purposes
dbx_link_object dbx_connect(string module_name, string host, string db, string username, string password[, bool persistent]) 4.0.6: Opens a connection/database; returns dbx_link_object on success or 0 on failure
void dbx_error(dbx_link_object dbx_link) 4.0.6: Reports the error message of the latest function call in the module
dbx_result_object dbx_query(dbx_link_object dbx_link, string sql_statement[, long flags]) 4.0.6: Sends a query and fetches all results; returns a dbx_link_object on success or 0 on failure
int dbx_sort(object dbx_result, string compare_function_name) 4.0.6: Sorts a result from dbx_query() by a custom sort function
string dcgettext(string domain_name, string msgid, long category) 3.0.7: Returns the translation of msgid for domain_name and category or msgid unaltered if a translation does not exist
string dcngettext (string domain, string msgid1, string msgid2, int n, int category) 4.1.0: Plural version of dcgettext( )
void debug_zval_dump(mixed var) 4.1.0: Dumps a string representation of an internal Zend value to output
string decbin(int decimal_number) 3.0: Returns a string containing a binary representation of the number
string dechex(int decimal_number) 3.0: Returns a string containing a hexadecimal representation of the number
declare(directive) 4.0.2: Language keyword used to mark a block of code; only used for ticks at this point
string decoct(int decimal_number) 3.0: Returns a string containing an octal representation of the number
default: 3.0: Language keyword used inside a switch statement
bool define(string constant_name, mixed value, case_sensitive=true) 3.0: Defines a new constant
void define_syslog_variables(void) 3.0: Initializes all syslog-related variables
bool defined(string constant_name) 3.0: Checks whether a constant exists
float deg2rad(float number) 3.0.4: Converts the number in degrees to the radian equivalent
string dgettext(string domain_name, string msgid) 3.0.7: Returns the translation of msgid for domain_name or msgid unaltered if a translation does not exist
object dir(string directory) 3.0: Directory class with properties for handle and class and methods to read, rewind, and close
string dirname(string path) 3.0: Returns the directory name component of the path
float disk_free_space(string path) 4.1.0: Gets free disk space for filesystem that path is on
float disk_total_space(string path) 4.1.0: Gets total disk space for filesystem that path is on
int dl(string extension_filename) 3.0: Loads a PHP extension at runtime
string dngettext (string domain, string msgid1, string msgid2, int count) 4.1.0: Plural version of dgettext( )
do 3.0: Language keyword that forms the start of a do/while loop
array each(array arr) 3.0: Returns the current key/value pair in the passed array and advances the pointer to the next element
int easter_date([int year]) 3.0.9: Returns the timestamp of midnight on Easter of a given year (defaults to current year)
int easter_days([int year, [int method]]) 3.0.9: Returns the number of days after March 21 that Easter falls on for a given year (defaults to current year)
echo string arg1[, string argn...] 3.0: Outputs one or more strings
else 3.0: Language keyword that reverses the current condition
elseif(cond) 3.0: Language keyword that tests a condition only if current condition was not met
bool empty(mixed var) 3.0: Determines whether a variable is empty
mixed end(array array_arg) 3.0: Advances array argument's internal pointer to the last element and returns it
enddeclare 4.0.2: Language keyword that ends a declare: block
endfor 3.0: Language keyword that ends a for: block
endforeach 4.0: Language keyword that ends a foreach: block
endif 3.0: Language keyword that ends an if: block
endswitch 3.0: Language keyword that ends a switch: block
endwhile 3.0: Language keyword that ends a while: block
int ereg(string pattern, string string[, array registers]) 3.0: Performs a regular expression match
string ereg_replace(string pattern, string replacement, string string) 3.0: Performs a regular expression replacement
int eregi(string pattern, string string[, array registers]) 3.0: Performs a case-insensitive regular expression match
string eregi_replace(string pattern, string replacement, string string) 3.0: Performs a case-insensitive regular expression replacement
bool error_log(string message, int message_type[, string destination][, string extra_headers]) 3.0: Sends an error message somewhere
int error_reporting(int new_error_level=null) 3.0: Returns the current error_reporting level, and, if an argument was passed, changes to the new level
string escapeshellarg(string arg) 4.0.3: Quotes and escapes an argument for use in a shell command
string escapeshellcmd(string command) 3.0: Escapes shell metacharacters
mixed eval(string code_str) 3.0: Evaluates a string as PHP code
string exec(string command[, array output[, int return_value]]) 3.0: Executes an external program
int exif_imagetype(string imagefile) 4.3.0: Gets the type of an image
array|false exif_read_data(string filename[, sections_needed[, sub_arrays[, read_thumbnail]]]) 4.1.0: Reads header data from the JPEG/TIFF image filename and optionally reads the internal thumbnails
string|false exif_tagname(index) 4.1.0: Gets header name for index or false if not defined
string|false exif_thumbnail(string filename[, &width, &height[, &imagetype]]) 4.1.0: Reads the embedded thumbnail
exit [([mixed status])] 3.0: Language keyword that terminates execution of the script and prints status just before exiting
float exp(float number) 3.0: Returns e raised to the power of the number
array explode(string separator, string str[, int limit]) 3.0: Splits a string on string separator and returns an array of components
float expm1(float number) 4.1.0: Returns exp(number) - 1, computed in a way that is accurate even when the value of number is close to zero
extends 3.0: Language keyword used in a class definition to extend from a parent class
bool extension_loaded(string extension_name) 3.0.10: Returns true if the named extension is loaded
int extract(array var_array[, int extract_type[, string prefix]]) 3.0.7: Imports variables into symbol table from an array
int ezmlm_hash(string addr) 3.0.17: Calculate EZMLM list hash value
bool fclose(resource fp) 3.0: Closes an open file pointer
bool feof(resource fp) 3.0: Tests for end-of-file on a file pointer
bool fflush(resource fp) 4.0.1: Flushes output
string fgetc(resource fp) 3.0: Gets a character from file pointer
array fgetcsv(resource fp, int length[, string delimiter[, string enclosure]]) 3.0.8: Gets a line from file pointer and parses for CSV fields
string fgets(resource fp[, int length]) 3.0: Gets a line from file pointer
string fgetss(resource fp, int length[, string allowable_tags]) 3.0: Gets a line from file pointer and strips HTML tags
array file(string filename[, bool use_include_path]) 3.0: Reads entire file into an array
bool file_exists(string filename) 3.0: Returns true if filename exists
string file_get_contents(string filename[, bool use_include_path]) 4.3.0: Reads the entire file into a string
resource file_get_wrapper_data(resource fp) 4.3.0: Retrieves header/metadata from wrapped file pointer
bool file_register_wrapper(string protocol, string classname) 4.3.0: Registers a custom URL protocol handler class
int fileatime(string filename) 3.0: Gets last access time of file
int filectime(string filename) 3.0: Gets inode modification time of file
int filegroup(string filename) 3.0: Gets file group
int fileinode(string filename) 3.0: Gets file inode
int filemtime(string filename) 3.0: Gets last modification time of file
int fileowner(string filename) 3.0: Gets file owner
int fileperms(string filename) 3.0: Gets file permissions
int filesize(string filename) 3.0: Gets file size
string filetype(string filename) 3.0: Gets file type
float floatval(mixed var) 4.1.0: Gets the float value of a variable
bool flock(resource fp, int operation[, int &wouldblock]) 3.0.7: Provides portable file locking
float floor(float number) 3.0: Returns the next lowest integer value from the number
void flush(void) 3.0: Flushes the output buffer
float fmod(float x, float y) 4.1.0: Returns the remainder of dividing x by y as a float
bool fnmatch(string pattern, string filename[, int flags]) 4.3.0: Matches filename against pattern
resource fopen(string filename, string mode[, bool use_include_path[, resource context]]) 3.0: Opens a file or a URL and returns a file pointer
for(init; cond; inc) 3.0: Language keyword that implements a traditional for loop
foreach(array as key=>value) 4.0: Language keyword that iterates through array and assigns each element to key and value
int fpassthru(resource fp) 3.0: Outputs all remaining data from a file pointer
string fread(resource fp, int length) 3.0: Provides a binary-safe file read
int frenchtojd(int month, int day, int year) 3.0: Converts a French Republic calendar date to Julian day count
mixed fscanf(string str, string format[, string ...]) 4.0.1: Implements a mostly ANSI-compatible fscanf( )
int fseek(resource fp, int offset[, int whence]) 3.0: Seeks on a file pointer
int fsockopen(string hostname, int port[, int errno[, string errstr[, float timeout]]]) 3.0: Opens an Internet or Unix domain socket connection
int fstat(resource fp) 4.0: Performs stat( ) on a filehandle
int ftell(resource fp) 3.0: Gets file pointer's read/write position
int ftok(string pathname, string proj) 4.1.0: Converts a pathname and a project identifier to a System V IPC key
int ftp_async_continue(resource stream) 4.3.0: Continues retrieving/sending a file asynchronously
bool ftp_async_fget(resource stream, resource fp, string remote_file, int mode[, int resumepos]) 4.3.0: Retrieves a file from the FTP server asynchronously and writes it to an open file
bool ftp_async_fput(resource stream, string remote_file, resource fp, int mode[, int startpos]) 4.3.0: Stores a file from an open file to the FTP server asynchronously
int ftp_async_get(resource stream, string local_file, string remote_file, int mode[, int resume_pos]) 4.3.0: Retrieves a file from the FTP server asynchronously and writes it to a local file
bool ftp_async_put(resource stream, string remote_file, string local_file, int mode[, int startpos]) 4.3.0: Stores a file on the FTP server
bool ftp_cdup(resource stream) 3.0.13: Changes to the parent directory
bool ftp_chdir(resource stream, string directory) 3.0.13: Changes directories
void ftp_close(resource stream) 4.1.0: Closes the FTP stream
resource ftp_connect(string host[, int port[, int timeout)]]) 3.0.13: Opens an FTP stream
bool ftp_delete(resource stream, string file) 3.0.13: Deletes a file
bool ftp_exec(resource stream, string command) 4.0.3: Requests execution of a program on the FTP server
bool ftp_fget(resource stream, resource fp, string remote_file, int mode[, int resumepos]) 3.0.13: Retrieves a file from the FTP server and writes it to an open file
bool ftp_fput(resource stream, string remote_file, resource fp, int mode[, int startpos]) 3.0.13: Stores a file from an open file to the FTP server
bool ftp_get(resource stream, string local_file, string remote_file, int mode[, int resume_pos]) 3.0.13: Retrieves a file from the FTP server and writes it to a local file
mixed ftp_get_option(resource stream, int option) 4.1.0: Gets an FTP option
bool ftp_login(resource stream, string username, string password) 3.0.13: Logs into the FTP server
int ftp_mdtm(resource stream, string filename) 3.0.13: Returns the last modification time of the file or -1 on error
string ftp_mkdir(resource stream, string directory) 3.0.13: Creates a directory and returns the absolute path for the new directory or false on error
array ftp_nlist(resource stream, string directory) 3.0.13: Returns an array of filenames in the given directory
bool ftp_pasv(resource stream, bool pasv) 3.0.13: Turns passive mode on or off
bool ftp_put(resource stream, string remote_file, string local_file, int mode[, int startpos]) 3.0.13: Stores a file on the FTP server
string ftp_pwd(resource stream) 3.0.13: Returns the present working directory
array ftp_rawlist(resource stream, string directory[, bool recursive]) 3.0.13: Returns a detailed listing of a directory as an array of output lines
bool ftp_rename(resource stream, string src, string dest) 3.0.13: Renames the given file to a new path
bool ftp_rmdir(resource stream, string directory) 3.0.13: Removes a directory
bool ftp_set_option(resource stream, int option, mixed value) 4.1.0: Sets an FTP option
bool ftp_site(resource stream, string cmd) 3.0.15: Sends a site command to the server
int ftp_size(resource stream, string filename) 3.0.13: Returns the size of the file or -1 on error
string ftp_systype(resource stream) 3.0.13: Returns the system type identifier
int ftruncate(resource fp, int size) 4.0: Truncates file to size length
mixed func_get_arg(int arg_num) 4.0: Gets the specified argument that was passed to the function
array func_get_args( ) 4.0: Gets an array of the arguments that were passed to the function
int func_num_args(void) 4.0: Gets the number of arguments that were passed to the function
function func_name($arg1, $arg2, ...) 3.0: Language keyword used to define a function
bool function_exists(string function_name) 3.0.7: Checks if the function exists
int fwrite(resource fp, string str[, int length]) 3.0: Provides a binary-safe file write
string get_cfg_var(string option_name) 3.0: Gets the value of a PHP configuration option
string get_class(object object) 4.0: Retrieves the class name
array get_class_methods(mixed class) 4.0: Returns an array of method names for class or class instance
array get_class_vars(string class_name) 4.0: Returns an array of default properties of the class
string get_current_user(void) 3.0: Gets the name of the owner of the current PHP script
array get_declared_classes(void) 4.0: Returns an array of all declared classes
array get_defined_constants(void) 4.1.0: Returns an array containing the names and values of all defined constants
array get_defined_functions(void) 4.0.4: Returns an array of all defined functions
array get_defined_vars(void) 4.0.4: Returns an associative array of names and values of all currently defined variable names (variables in the current scope)
array get_extension_funcs(string extension_name) 4.0: Returns an array with the names of functions belonging to the named extension
array get_html_translation_table([int table[, int quote_style]]) 4.0: Returns the internal translation table used by htmlspecialchars() and htmlentities()
array get_included_files(void) 4.0: Returns an array with the filenames that were included with include_once
array get_loaded_extensions(void) 4.0: Returns an array containing names of loaded extensions
int get_magic_quotes_gpc(void) 3.0.6: Gets the active configuration setting of magic_quotes_gpc
int get_magic_quotes_runtime(void) 3.0.6: Gets the active configuration setting of magic_quotes_runtime
array get_meta_tags(string filename[, bool use_include_path]) 3.0.4: Extracts all meta tag content attributes from a file and returns an array
array get_object_vars(object obj) 4.0: Returns an array of object properties
string get_parent_class(mixed object) 4.0: Retrieves the parent class name for object or class
string get_resource_type(resource res) 4.0.2: Gets the resource type name for a given resource
array getallheaders(void) 3.0: An alias for apache_request_headers( )
mixed getcwd(void) 4.0: Gets the current directory
array getdate([int timestamp]) 3.0: Gets date/time information
string getenv(string varname) 3.0: Gets the value of an environment variable
string gethostbyaddr(string ip_address) 3.0: Gets the Internet hostname corresponding to a given IP address
string gethostbyname(string hostname) 3.0: Gets the IP address corresponding to a given Internet hostname
array gethostbynamel(string hostname) 3.0: Returns a list of IP addresses that a given hostname resolves to
array getimagesize(string imagefile[, array info]) 3.0: Gets the size of an image as a four-element array
int getlastmod(void) 3.0: Gets time of last page modification
int getmxrr(string hostname, array mxhosts[, array weight]) 3.0: Gets MX records corresponding to a given Internet hostname
int getmygid(void) 4.1.0: Gets PHP script owner's group ID
int getmyinode(void) 3.0: Gets the inode of the current script being parsed
int getmypid(void) 3.0: Gets current process ID
int getmyuid(void) 3.0: Gets PHP script owner's user ID
int getprotobyname(string name) 4.0: Returns protocol number associated with name as per /etc/protocols
string getprotobynumber(int proto) 4.0: Returns protocol name associated with protocol number proto
int getrandmax(void) 3.0: Returns the maximum value a random number can have
array getrusage([int who]) 3.0.7: Returns an array of usage statistics
int getservbyname(string service, string protocol) 4.0: Returns port associated with service; protocol must be "tcp" or "udp"
string getservbyport(int port, string protocol) 4.0: Returns service name associated with port; protocol must be "tcp" or "udp"
string gettext(string msgid) 3.0.7: Returns the translation of msgid for the current domain or msgid unaltered if a translation does not exist
array gettimeofday(void) 3.0.7: Returns the current time as array
string gettype(mixed var) 3.0: Returns the type of the variable
array glob(string pattern[, int flags]) 4.3.0: Finds pathnames matching a pattern
global var1[,var2[, ...]] 3.0: Language keyword used inside functions to indicate all uses for specified variables will be global
string gmdate(string format[, int timestamp]) 3.0: Formats a GMT/UTC date/time
int gmmktime(int hour, int min, int sec, int mon, int day, int year) 3.0: Gets Unix timestamp for a GMT date
resource gmp_abs(resource a) 4.0.4: Calculates absolute value
resource gmp_add(resource a, resource b) 4.0.4: Adds a and b
resource gmp_and(resource a, resource b) 4.0.4: Calculates logical AND of a and b
void gmp_clrbit(resource &a, int index) 4.0.4: Clears bit in a
int gmp_cmp(resource a, resource b) 4.0.4: Compares two numbers
resource gmp_com(resource a) 4.0.4: Calculates one's complement of a
resource gmp_div_q(resource a, resource b[, int round]) 4.0.4: Divides a by b, returns quotient only
array gmp_div_qr(resource a, resource b[, int round]) 4.0.4: Divides a by b, returns quotient and reminder
resource gmp_div_r(resource a, resource b[, int round]) 4.0.4: Divides a by b, returns reminder only
resource gmp_divexact(resource a, resource b) 4.0.4: Divides a by b using exact division algorithm
resource gmp_fact(int a) 4.0.4: Calculates factorial function
resource gmp_gcd(resource a, resource b) 4.0.4: Computes greatest common denominator (GCD) of a and b
array gmp_gcdext(resource a, resource b) 4.0.4: Computes G, S, and T, such that AS + BT = G, where G is the GCD of a and b
int gmp_hamdist(resource a, resource b) 4.0.4: Calculates hamming distance between a and b
resource gmp_init(mixed number[, int base]) 4.0.4: Initializes GMP number
int gmp_intval(resource gmpnumber) 4.0.4: Gets signed long value of GMP number
resource gmp_invert(resource a, resource b) 4.0.4: Computes the inverse of a modulo b
int gmp_jacobi(resource a, resource b) 4.0.4: Computes Jacobi symbol
int gmp_legendre(resource a, resource b) 4.0.4: Computes Legendre symbol
resource gmp_mod(resource a, resource b) 4.0.4: Computes a modulo b
resource gmp_mul(resource a, resource b) 4.0.4: Multiplies a and b
resource gmp_neg(resource a) 4.0.4: Negates a number
resource gmp_or(resource a, resource b) 4.0.4: Calculates logical OR of a and b
bool gmp_perfect_square(resource a) 4.0.4: Checks if a is an exact square
int gmp_popcount(resource a) 4.0.4: Calculates the population count of a
resource gmp_pow(resource base, int exp) 4.0.4: Raises base to power exp
resource gmp_powm(resource base, resource exp, resource mod) 4.0.4: Raises base to power exp and takes result modulo mod
int gmp_prob_prime(resource a[, int reps]) 4.0.4: Checks if a is "probably prime"
resource gmp_random([int limiter]) 4.0.4: Gets random number
int gmp_scan0(resource a, int start) 4.0.4: Finds first zero bit
int gmp_scan1(resource a, int start) 4.0.4: Finds first nonzero bit
void gmp_setbit(resource &a, int index[, bool set_clear]) 4.0.4: Sets or clears bit in a
int gmp_sign(resource a) 4.0.4: Gets the sign of the number
resource gmp_sqrt(resource a) 4.0.4: Takes integer part of square root of a
array gmp_sqrtrem(resource a) 4.0.4: Takes square root with remainder
string gmp_strval(resource gmpnumber[, int base]) 4.0.4: Gets string representation of GMP number
resource gmp_sub(resource a, resource b) 4.0.4: Subtracts b from a
resource gmp_xor(resource a, resource b) 4.0.4: Calculates logical exclusive OR of a and b
string gmstrftime(string format[, int timestamp]) 3.0.12: Formats a GMT/UCT time/date according to locale settings
int gregoriantojd(int month, int day, int year) 3.0: Converts a Gregorian calendar date to Julian day count
string gzcompress(string data[, int level]) 4.0.1: Gzip-compresses a string
string gzdeflate(string data[, int level]) 4.0.4: Gzip-compresses a string
string gzencode(string data[, int level[, int encoding_mode]]) 4.0.4: Gzip-encodes a string
array gzfile(string filename[, int use_include_path]) 3.0: Reads and uncompresses an entire .gz file into an array
string gzinflate(string data[, int length]) 4.0.4: Unzips a gzip-compressed string
int gzopen(string filename, string mode[, int use_include_path]) 3.0: Opens a .gz file and returns a .gz file pointer
string gzuncompress(string data, int length) 4.0.1: Unzips a gzip-compressed string
void header(string header[, bool replace, [int http_response_code]]) 3.0: Sends a raw HTTP header
int headers_sent(void) 3.0.8: Returns true if headers have already been sent, false otherwise
string hebrev(string str[, int max_chars_per_line]) 3.0: Converts logical Hebrew text to visual text
string hebrevc(string str[, int max_chars_per_line]) 3.0: Converts logical Hebrew text to visual text with newline conversion
int hexdec(string hexadecimal_number) 3.0: Returns the decimal equivalent of the hexadecimal number
bool highlight_file(string file_name[, bool return] ) 4.0: Adds syntax highlighting to a source file
bool highlight_string(string string[, bool return] ) 4.0: Adds syntax highlighting to a string and optionally return it
string html_entity_decode(string string[, int quote_style][, string charset]) 4.3.0: Converts all HTML entities to their applicable characters
string htmlentities(string string[, int quote_style][, string charset]) 3.0: Converts all applicable characters to HTML entities
string htmlspecialchars(string string[, int quote_style][, string charset]) 3.0: Converts special characters to HTML entities
string iconv(string in_charset, string out_charset, string str) 4.0.5: Returns str converted to the out_charset character set
array iconv_get_encoding([string type]) 4.0.5: Gets the internal and output encoding for ob_iconv_handler( )
bool iconv_set_encoding(string type, string charset) 4.0.5: Sets the internal and output encoding for ob_iconv_handler( )
if(cond) 3.0: Language keyword that tests a condition
int ignore_user_abort(bool value) 3.0.7: Sets whether to ignore a user abort event or not
int image2wbmp(int im[, string filename[, int threshold]]) 4.0.5: Outputs WBMP image to browser or file
array image_type_to_mime_type(int imagetype) 4.3.0: Gets the MIME type for imagetype returned by getimagesize(), exif_read_data(), exif_thumbnail(), and exif_imagetype()
void imagealphablending(resource im, bool on) 4.0.6: Turns alpha blending mode on or off for the given image
int imagearc(int im, int cx, int cy, int w, int h, int s, int e, int col) 3.0: Draws a partial ellipse
int imagechar(int im, int font, int x, int y, string c, int col) 3.0: Draws a character
int imagecharup(int im, int font, int x, int y, string c, int col) 3.0: Draws a character rotated 90 degrees counterclockwise
int imagecolorallocate(int im, int red, int green, int blue) 3.0: Allocates a color for an image
int imagecolorat(int im, int x, int y) 3.0: Gets the index of the color of a pixel
int imagecolorclosest(int im, int red, int green, int blue) 3.0: Gets the index of the closest color to the specified color
int imagecolorclosestalpha(resource im, int red, int green, int blue, int alpha) 4.0.6: Finds the closest matching color with alpha transparency
int imagecolorclosesthwb(int im, int red, int green, int blue) 4.0.1: Gets the index of the color that has the hue, white, and blackness nearest to the given color
int imagecolordeallocate(int im, int index) 3.0.6: Deallocates a color for an image
int imagecolorexact(int im, int red, int green, int blue) 3.0: Gets the index of the specified color
int imagecolorexactalpha(resource im, int red, int green, int blue, int alpha) 4.0.6: Finds exact match for color with transparency
int imagecolorresolve(int im, int red, int green, int blue) 3.0.2: Gets the index of the specified color or its closest possible alternative
int imagecolorresolvealpha(resource im, int red, int green, int blue, int alpha) 4.0.6: Resolves/allocates a color with an alpha level; works for true color and palette based images
int imagecolorset(int im, int col, int red, int green, int blue) 3.0: Sets the color for the specified palette index
array imagecolorsforindex(int im, int col) 3.0: Gets the colors for an index
int imagecolorstotal(int im) 3.0: Finds out the number of colors in an image's palette
int imagecolortransparent(int im[, int col]) 3.0: Defines a color as transparent
int imagecopy(int dst_im, int src_im, int dst_x, int dst_y, int src_x, int src_y, int src_w, int src_h) 3.0.6: Copies part of an image
int imagecopymerge(int src_im, int dst_im, int dst_x, int dst_y, int src_x, int src_y, int src_w, int src_h, int pct) 4.0.1: Merges one part of an image with another
int imagecopymergegray(int src_im, int dst_im, int dst_x, int dst_y, int src_x, int src_y, int src_w, int src_h, int pct) 4.0.6: Merges one part of an image with another
int imagecopyresampled(int dst_im, int src_im, int dst_x, int dst_y, int src_x, int src_y, int dst_w, int dst_h, int src_w, int src_h) 4.0.6: Copies and resizes part of an image using resampling to help ensure clarity
int imagecopyresized(int dst_im, int src_im, int dst_x, int dst_y, int src_x, int src_y, int dst_w, int dst_h, int src_w, int src_h) 3.0: Copies and resizes part of an image
int imagecreate(int x_size, int y_size) 3.0: Creates a new image
int imagecreatefromgd(string filename) 4.1.0: Creates a new image from GD file or URL
int imagecreatefromgd2(string filename) 4.1.0: Creates a new image from GD2 file or URL
int imagecreatefromgd2part(string filename, int srcX, int srcY, int width, int height) 4.1.0: Creates a new image from a given part of GD2 file or URL
int imagecreatefromgif(string filename) 3.0: Creates a new image from GIF file or URL
int imagecreatefromjpeg(string filename) 3.0.16: Creates a new image from JPEG file or URL
int imagecreatefrompng(string filename) 3.0.13: Creates a new image from PNG file or URL
int imagecreatefromstring(string image) 4.0.4: Creates a new image from the image stream in the string
int imagecreatefromwbmp(string filename) 4.0.1: Creates a new image from WBMP file or URL
int imagecreatefromxbm(string filename) 4.0.1: Creates a new image from XBM file or URL
int imagecreatefromxpm(string filename) 4.0.1: Creates a new image from XPM file or URL
int imagecreatetruecolor(int x_size, int y_size) 4.0.6: Creates a new true color image
int imagedashedline(int im, int x1, int y1, int x2, int y2, int col) 3.0: Draws a dashed line
int imagedestroy(int im) 3.0: Destroys an image
void imageellipse(resource im, int cx, int cy, int w, int h, int color) 4.0.6: Draws an ellipse
int imagefill(int im, int x, int y, int col) 3.0: Performs a flood fill
int imagefilledarc(int im, int cx, int cy, int w, int h, int s, int e, int col, int style) 4.0.6: Draws a filled partial ellipse
void imagefilledellipse(resource im, int cx, int cy, int w, int h, int color) 4.0.6: Draws an ellipse
int imagefilledpolygon(int im, array point, int num_points, int col) 3.0: Draws a filled polygon
int imagefilledrectangle(int im, int x1, int y1, int x2, int y2, int col) 3.0: Draws a filled rectangle
int imagefilltoborder(int im, int x, int y, int border, int col) 3.0: Performs a flood fill to specific color
int imagefontheight(int font) 3.0: Gets font height
int imagefontwidth(int font) 3.0: Gets font width
array imageftbbox(int size, int angle, string font_file, string text[, array extrainfo]) 4.1.0: Gives the bounding box of a text using fonts via freetype2
array imagefttext(int im, int size, int angle, int x, int y, int col, string font_file, string text, [array extrainfo]) 4.1.0: Writes text to the image using fonts via freetype2
int imagegammacorrect(int im, float inputgamma, float outputgamma) 3.0.13: Applies a gamma correction to a GD image
int imagegd(int im[, string filename]) 4.1.0: Outputs GD image to browser or file
int imagegd2(int im[, string filename]) 4.1.0: Outputs GD2 image to browser or file
int imagegif(int im[, string filename]) 3.0: Outputs GIF image to browser or file
int imageinterlace(int im[, int interlace]) 3.0: Enables or disables interlace
int imagejpeg(int im[, string filename[, int quality]]) 3.0.16: Outputs JPEG image to browser or file
int imageline(int im, int x1, int y1, int x2, int y2, int col) 3.0: Draws a line
int imageloadfont(string filename) 3.0: Loads a new font
int imagepalettecopy(int dst, int src) 4.0.1: Copies the palette from the src image onto the dst image
int imagepng(int im[, string filename]) 3.0.13: Outputs PNG image to browser or file
int imagepolygon(int im, array point, int num_points, int col) 3.0: Draws a polygon
array imagepsbbox(string text, int font, int size[, int space, int tightness, int angle]) 3.0.9: Returns the bounding box needed by a string if rasterized
int imagepscopyfont(int font_index) 3.0.9: Makes a copy of a font for purposes like extending or reencoding
bool imagepsencodefont(int font_index, string filename) 3.0.9: Changes a font's character encoding vector
bool imagepsextendfont(int font_index, float extend) 3.0.9: Extends or condenses (if extend is less than 1) a font
bool imagepsfreefont(int font_index) 3.0.9: Frees memory used by a font
int imagepsloadfont(string pathname) 3.0.9: Loads a new font from specified file
bool imagepsslantfont(int font_index, float slant) 3.0.9: Slants a font
array imagepstext(int image, string text, int font, int size, int xcoord, int ycoord[, int space, int tightness, float angle, int antialias]) 3.0.9: Rasterizes a string over an image
int imagerectangle(int im, int x1, int y1, int x2, int y2, int col) 3.0: Draws a rectangle
int imagesetbrush(resource image, resource brush) 4.0.6: Sets the brush image for line drawing
int imagesetpixel(int im, int x, int y, int col) 3.0: Sets a single pixel
void imagesetstyle(resource im, array styles) 4.0.6: Sets the style for line drawing
void imagesetthickness(resource im, int thickness) 4.0.6: Sets line thickness for line drawing
int imagesettile(resource image, resource tile) 4.0.6: Sets the tile image for filling
int imagestring(int im, int font, int x, int y, string str, int col) 3.0: Draws a string horizontally
int imagestringup(int im, int font, int x, int y, string str, int col) 3.0: Draws a string vertically (rotated 90 degrees counterclockwise)
int imagesx(int im) 3.0: Gets image width
int imagesy(int im) 3.0: Gets image height
void imagetruecolortopalette(resource im, bool ditherFlag, int colorsWanted) 4.0.6: Converts a true color image to a palette-based image with a number of colors, optionally using dithering.
array imagettfbbox(int size, int angle, string font_file, string text) 3.0.1: Gives the bounding box of a text using TrueType fonts
array imagettftext(int im, int size, int angle, int x, int y, int col, string font_file, string text) 3.0: Writes text to the image using a TrueType font
int imagetypes(void) 3 CVS Only: Returns the types of images supported in a bitfield (1=GIF, 2=JPEG, 4=PNG, 8=WBMP, 16=XPM)
int imagewbmp(int im[, string filename,[, int foreground]]) 3.0.15: Outputs WBMP image to browser or file
string imap_8bit(string text) 3.0: Converts an 8-bit string to a quoted-printable string
array imap_alerts(void) 3.0.12: Returns an array of all IMAP alerts generated since the last page load or the last imap_alerts( ) call, whichever came last, and clears the alert stack
int imap_append(int stream_id, string folder, string message[, string flags]) 3.0: Appends a new message to a specified mailbox
string imap_base64(string text) 3.0: Decodes BASE64 encoded text
string imap_binary(string text) 3.0.2: Converts an 8-bit string to a base64 string
string imap_body(int stream_id, int msg_no[, int options]) 3.0: Reads the message body
object imap_bodystruct(int stream_id, int msg_no, int section) 3.0.4: Reads the structure of a specified body section of a specific message
object imap_check(int stream_id) 3.0: Gets mailbox properties
int imap_clearflag_full(int stream_id, string sequence, string flag[, int options]) 3.0.3: Clears flags on messages
int imap_close(int stream_id[, int options]) 3.0: Closes an IMAP stream
int imap_createmailbox(int stream_id, string mailbox) 3.0: Creates a new mailbox
int imap_delete(int stream_id, int msg_no[, int flags]) 3.0: Marks a message for deletion
int imap_deletemailbox(int stream_id, string mailbox) 3.0: Deletes a mailbox
array imap_errors(void) 3.0.12: Returns an array of all IMAP errors generated since the last page load or the last imap_errors( ) call, whichever came last, and clears the error stack
int imap_expunge(int stream_id) 3.0: Permanently deletes all messages marked for deletion
array imap_fetch_overview(int stream_id, int msg_no[, int flags]) 3.0.4: Reads an overview of the information in the headers of the given message sequence
string imap_fetchbody(int stream_id, int msg_no, int section[, int options]) 3.0: Gets a specific body section
string imap_fetchheader(int stream_id, int msg_no[, int options]) 3.0.3: Gets the full unfiltered header for a message
object imap_fetchstructure(int stream_id, int msg_no[, int options]) 3.0: Reads the full structure of a message
array imap_get_quota(int stream_id, string qroot) 4.0.5: Returns the quota set to the mailbox account qroot
array imap_get_quotaroot(int stream_id, string mbox) 4.3.0: Returns the quota set to the mailbox account mbox
array imap_getmailboxes(int stream_id, string ref, string pattern) 3.0.12: Reads the list of mailboxes and returns a full array of objects containing names, attributes, and delimiters
array imap_getsubscribed(int stream_id, string ref, string pattern) 3.0.12: Return a list of subscribed mailboxes in the same format as imap_getmailboxes( )
object imap_headerinfo(int stream_id, int msg_no[, int from_length[, int subject_length[, string default_host]]]) 3.0: Reads the headers of the message
array imap_headers(int stream_id) 3.0: Returns headers for all messages in a mailbox
string imap_last_error(void) 3.0.12: Returns the last error that was generated by an IMAP function; the error stack is not cleared after this call
array imap_list(int stream_id, string ref, string pattern) 3.0.4: Reads the list of mailboxes
array imap_lsub(int stream_id, string ref, string pattern) 3.0.4: Returns a list of subscribed mailboxes
int imap_mail(string to, string subject, string message[, string additional_headers[, string cc[, string bcc[, string rpath]]]]) 3.0.14: Sends an email message
string imap_mail_compose(array envelope, array body) 3.0.5: Creates a MIME message based on given envelope and body sections
int imap_mail_copy(int stream_id, int msg_no, string mailbox[, int options]) 3.0: Copies specified message to a mailbox
int imap_mail_move(int stream_id, int msg_no, string mailbox[, int options]) 3.0: Moves specified message to a mailbox
object imap_mailboxmsginfo(int stream_id) 3.0.2: Returns information about the current mailbox
array imap_mime_header_decode(string str) 3.0.17: Decodes MIME header element in accordance with RFC 2047 and returns an array of objects containing charset encoding and decoded text
int imap_msgno(int stream_id, int unique_msg_id) 3.0.3: Gets the sequence number associated with a user ID
int imap_num_msg(int stream_id) 3.0: Gives the number of messages in the current mailbox
int imap_num_recent(int stream_id) 3.0: Gives the number of recent messages in current mailbox
int imap_open(string mailbox, string user, string password[, int options]) 3.0: Opens an IMAP stream to a mailbox
int imap_ping(int stream_id) 3.0: Checks if the IMAP stream is still active
string imap_qprint(string text) 3.0: Converts a quoted-printable string to an 8-bit string
int imap_renamemailbox(int stream_id, string old_name, string new_name) 3.0: Renames a mailbox
int imap_reopen(int stream_id, string mailbox[, int options]) 3.0: Reopens an IMAP stream to a new mailbox
array imap_rfc822_parse_adrlist(string address_string, string default_host) 3.0.2: Parses an address string
object imap_rfc822_parse_headers(string headers[, string default_host]) 4.0: Parses a set of mail headers contained in a string and return an object similar to imap_headerinfo( )
string imap_rfc822_write_address(string mailbox, string host, string personal) 3.0.2: Returns a properly formatted email address given the mailbox, host, and personal information
array imap_scan(int stream_id, string ref, string pattern, string content) 3.0.4: Reads list of mailboxes containing a certain string
array imap_search(int stream_id, string criteria[, long flags]) 3.0.12: Returns a list of messages matching the given criteria
int imap_set_quota(int stream_id, string qroot, int mailbox_size) 4.0.5: Sets the quota for qroot mailbox
int imap_setacl(int stream_id, string mailbox, string id, string rights) 4.1.0: Sets the ACL for a given mailbox
int imap_setflag