NameDesc
abs()Returns the absolute (positive) value of a number
acos()Returns the arc cosine of a number
acosh()Returns the inverse hyperbolic cosine of a number
addAttribute()Adds an attribute to the SimpleXML element
addcslashes()Returns a string with backslashes in front of the specified characters
addChild()Adds a child element the SimpleXML element
addslashes()Returns a string with backslashes in front of predefined characters
array()Creates an array
array_column()Returns the values from a single column in the input array
array_combine()Creates an array by using the elements from one "keys" array and one "values" array
array_count_values()Counts all the values of an array
array_diff()Compare arrays, and returns the differences (compare values only)
array_diff_assoc()Compare arrays, and returns the differences (compare keys and values)
array_diff_key()Compare arrays, and returns the differences (compare keys only)
array_diff_uassoc()Compare arrays, and returns the differences (compare keys and values, using a user-defined key comparison function)
array_diff_ukey()Compare arrays, and returns the differences (compare keys only, using a user-defined key comparison function)
array_fill()Fills an array with values
array_fill_keys()Fills an array with values, specifying keys
array_filter()Filters the values of an array using a callback function
array_flip()Flips/Exchanges all keys with their associated values in an array
array_change_key_case()Changes all keys in an array to lowercase or uppercase
array_chunk()Splits an array into chunks of arrays
array_intersect()Compare arrays, and returns the matches (compare values only)
array_intersect_assoc()Compare arrays and returns the matches (compare keys and values)
array_intersect_key()Compare arrays, and returns the matches (compare keys only)
array_intersect_uassoc()Compare arrays, and returns the matches (compare keys and values, using a user-defined key comparison function)
array_intersect_ukey()Compare arrays, and returns the matches (compare keys only, using a user-defined key comparison function)
array_key_exists()Checks if the specified key exists in the array
array_keys()Returns all the keys of an array
array_map()Sends each value of an array to a user-made function, which returns new values
array_merge()Merges one or more arrays into one array
array_merge_recursive()Merges one or more arrays into one array recursively
array_multisort()Sorts multiple or multi-dimensional arrays
array_pad()Inserts a specified number of items, with a specified value, to an array
array_pop()Deletes the last element of an array
array_product()Calculates the product of the values in an array
array_push()Inserts one or more elements to the end of an array
array_rand()Returns one or more random keys from an array
array_reduce()Returns an array as a string, using a user-defined function
array_replace()Replaces the values of the first array with the values from following arrays
array_replace_recursive()Replaces the values of the first array with the values from following arrays recursively
array_reverse()Returns an array in the reverse order
array_search()Searches an array for a given value and returns the key
array_shift()Removes the first element from an array, and returns the value of the removed element
array_slice()Returns ed parts of an array
array_splice()Removes and replaces specified elements of an array
array_sum()Returns the sum of the values in an array
array_udiff()Compare arrays, and returns the differences (compare values only, using a user-defined key comparison function)
array_udiff_assoc()Compare arrays, and returns the differences (compare keys and values, using a built-in function to compare the keys and a user-defined function to compare the values)
array_udiff_uassoc()Compare arrays, and returns the differences (compare keys and values, using two user-defined key comparison functions)
array_uintersect()Compare arrays, and returns the matches (compare values only, using a user-defined key comparison function)
array_uintersect_assoc()Compare arrays, and returns the matches (compare keys and values, using a built-in function to compare the keys and a user-defined function to compare the values)
array_uintersect_uassoc()Compare arrays, and returns the matches (compare keys and values, using two user-defined key comparison functions)
array_unique()Removes duplicate values from an array
array_unshift()Adds one or more elements to the beginning of an array
array_values()Returns all the values of an array
array_walk()Applies a user function to every member of an array
array_walk_recursive()Applies a user function recursively to every member of an array
arsort()Sorts an associative array in descending order, according to the value
asin()Returns the arc sine of a number
asinh()Returns the inverse hyperbolic sine of a number
asort()Sorts an associative array in ascending order, according to the value
asXML()Formats the SimpleXML object's data in XML (version 1.0)
atan()Returns the arc tangent of a number in radians
atan2()Returns the arc tangent of two variables x and y
atanh()Returns the inverse hyperbolic tangent of a number
attributes()Returns attributes and values within an XML tag
base_convert()Converts a number from one number base to another
basename()Returns the filename component of a path
bin2hex()Converts a string of ASCII characters to hexadecimal values
bindec()Converts a binary number to a decimal number
cal_days_in_month()Returns the number of days in a month for a specified year and calendar
cal_from_jd()Converts a Julian Day Count into a date of a specified calendar
cal_info()Returns information about a specified calendar
cal_to_jd()Converts a date in a specified calendar to Julian Day Count
ceil()Rounds a number up to the nearest integer
clearstatcache()Clears the file status cache
closedir()Closes a directory handle
compact()Create array containing variables and their values
connection_aborted()Checks whether the client has disconnected
connection_status()Returns the current connection status
constant()Returns the value of a constant
convert_cyr_string()Converts a string from one Cyrillic character-set to another
convert_uudecode()Decodes a uuencoded string
convert_uuencode()Encodes a string using the uuencode algorithm
copy()Copies a file
cos()Returns the cosine of a number
cosh()Returns the hyperbolic cosine of a number
count()Returns the number of elements in an array
count()Counts the children of a specified node
count_chars()Returns information about characters used in a string
crc32()Calculates a 32-bit CRC for a string
crypt()One-way string encryption (hashing)
current()Returns the current element in an array
current()Returns the current element
date()Formats a local date and time
date.default_latitudeThe default latitude (used by date_sunrise() and date_sunset())
date.default_longitudeThe default longitude (used by date_sunrise() and date_sunset())
date.sunrise_zenithThe default sunrise zenith (used by date_sunrise() and date_sunset())
date.sunset_zenithThe default sunset zenith (used by date_sunrise() and date_sunset())
date.timezoneThe default timezone (used by all date/time functions)
date_add()Adds days, months, years, hours, minutes, and seconds to a date
DATE_ATOMAtom (example: 2005-08-15T16:13:03+0000)
DATE_COOKIEHTTP Cookies (example: Sun, 14 Aug 2005 16:13:03 UTC)
date_create()Returns a new DateTime object
date_create_from_format()Returns a new DateTime object formatted according to a specified format
date_date_set()Sets a new date
date_default_timezone_get()Returns the default timezone used by all date/time functions
date_default_timezone_set()Sets the default timezone used by all date/time functions
date_diff()Returns the difference between two dates
date_format()Returns a date formatted according to a specified format
date_get_last_errors()Returns the warnings/errors found in a date string
date_interval_create_from_date_string()Sets up a DateInterval from the relative parts of the string
date_interval_format()Formats the interval
DATE_ISO8601ISO-8601 (example: 2005-08-14T16:13:03+0000)
date_isodate_set()Sets the ISO date
date_modify()Modifies the timestamp
date_offset_get()Returns the timezone offset
date_parse()Returns an associative array with detailed info about a specified date
date_parse_from_format()Returns an associative array with detailed info about a specified date, according to a specified format
DATE_RFC1036RFC 1036 (example: Sunday, 14-Aug-05 16:13:03 UTC)
DATE_RFC1123RFC 1123 (example: Sun, 14 Aug 2005 16:13:03 UTC)
DATE_RFC2822RFC 2822 (Sun, 14 Aug 2005 16:13:03 +0000)
DATE_RFC822RFC 822 (example: Sun, 14 Aug 2005 16:13:03 UTC)
DATE_RFC850RFC 850 (example: Sunday, 14-Aug-05 16:13:03 UTC)
DATE_RSSRSS (Sun, 14 Aug 2005 16:13:03 UTC)
date_sub()Subtracts days, months, years, hours, minutes, and seconds from a date
date_sun_info()Returns an array containing info about sunset/sunrise and twilight begin/end, for a specified day and location
date_sunrise()Returns the sunrise time for a specified day and location
date_sunset()Returns the sunset time for a specified day and location
date_time_set()Sets the time
date_timestamp_get()Returns the Unix timestamp
date_timestamp_set()Sets the date and time based on a Unix timestamp
date_timezone_get()Returns the time zone of the given DateTime object
date_timezone_set()Sets the time zone for the DateTime object
DATE_W3CWorld Wide Web Consortium (example: 2005-08-14T16:13:03+0000)
debug_backtrace()Generates a backtrace
debug_print_backtrace()Prints a backtrace
decbin()Converts a decimal number to a binary number
decoct()Converts a decimal number to an octal number
define()Defines a constant
defined()Checks whether a constant exists
deg2rad()Converts a degree value to a radian value
dechex()Converts a decimal number to a hexadecimal number
()See unlink() or unset()
die()Prints a message and exits the current script
dir()Returns an instance of the Directory class
dirname()Returns the directory name component of a path
disk_free_space()Returns the free space of a directory
disk_total_space()Returns the total size of a directory
diskfreespace()Alias of disk_free_space()
each()Returns the current key and value pair from an array
easter_date()Returns the Unix timestamp for midnight on Easter of a specified year
easter_days()Returns the number of days after March 21, that the Easter Day is in a specified year
echo()Outputs one or more strings
end()Sets the internal pointer of an array to its last element
error_get_last()Gets the last error occurred
error_log()Sends an error to the server error-log, to a file or to a remote destination
error_reporting()Specifies which errors are reported
eval()Evaluates a string as PHP code
exit()Prints a message and exits the current script
exp()Calculates the exponent of e
explode()Breaks a string into an array
expm1()Returns exp(x) - 1
extract()Imports variables into the current symbol table from an array
ezmlm_hash()Calculates the hash value needed by the EZMLM mailing list system
fclose()Closes an open file
feof()Tests for end-of-file on an open file
fflush()Flushes buffered output to an open file
fgetc()Returns a character from an open file
fgetcsv()Parses a line from an open file, checking for CSV fields
fgets()Returns a line from an open file
fgetss()Returns a line, with HTML and PHP tags removed, from an open file
file()Reads a file into an array
file_exists()Checks whether or not a file or directory exists
file_get_contents()Reads a file into a string
file_put_contentsWrites a string to a file
fileatime()Returns the last access time of a file
filectime()Returns the last change time of a file
filegroup()Returns the group ID of a file
fileinode()Returns the inode number of a file
filemtime()Returns the last modification time of a file
fileowner()Returns the user ID (owner) of a file
fileperms()Returns the permissions of a file
filesize()Returns the file size
filetype()Returns the file type
FILTER_CALLBACKCall a user-defined function to filter data
filter_has_var()Checks if a variable of a specified input type exist
filter_id()Returns the ID number of a specified filter
filter_input()Get input from outside the script and filter it
filter_input_array()Get multiple inputs from outside the script and filters them
filter_list()Returns an array of all supported filters
FILTER_SANITIZE_EMAILRemove all characters, except letters, digits and !#$%&'*+-/=?^_`{|}~@.[]
FILTER_SANITIZE_ENCODEDURL-encode string, optionally strip or encode special characters
FILTER_SANITIZE_MAGIC_QUOTESApply addslashes()
FILTER_SANITIZE_NUMBER_FLOATRemove all characters, except digits, +- and optionally .,eE
FILTER_SANITIZE_NUMBER_INTRemove all characters, except digits and +-
FILTER_SANITIZE_SPECIAL_CHARSHTML-escape '"<>& and characters with ASCII value less than 32
FILTER_SANITIZE_STRINGStrip tags, optionally strip or encode special characters
FILTER_SANITIZE_STRIPPEDAlias of "string" filter
FILTER_SANITIZE_URLRemove all characters, except letters, digits and $-_.+!*'(),{}|\\^~[]`<>#%";/?:@&=
FILTER_UNSAFE_RAWDo nothing, optionally strip or encode special characters
FILTER_VALIDATE_BOOLEANReturn TRUE for "1", "true", "on" and "yes", FALSE for "0", "false", "off", "no", and "", NULL otherwise
FILTER_VALIDATE_EMAILValidate value as e-mail
FILTER_VALIDATE_FLOATValidate value as float
FILTER_VALIDATE_INTValidate value as integer, optionally from the specified range
FILTER_VALIDATE_IPValidate value as IP address, optionally only IPv4 or IPv6 or not from private or reserved ranges
FILTER_VALIDATE_REGEXPValidate value against regexp, a Perl-compatible regular expression
FILTER_VALIDATE_URLValidate value as URL, optionally with required components
filter_var()Get a variable and filter it
filter_var_array()Get multiple variables and filter them
flock()Locks or releases a file
floor()Rounds a number down to the nearest integer
fmod()Returns the remainder of x/y
fnmatch()Matches a filename or string against a specified pattern
fopen()Opens a file or URL
fpassthru()Reads from an open file, until EOF, and writes the result to the output buffer
fprintf()Writes a formatted string to a specified output stream
fputcsv()Formats a line as CSV and writes it to an open file
fputs()Alias of fwrite()
fread()Reads from an open file
frenchtojd()Converts a French Republican date to a Julian Day Count
fscanf()Parses input from an open file according to a specified format
fseek()Seeks in an open file
fstat()Returns information about an open file
ftell()Returns the current position in an open file
ftp_alloc()Allocates space for a file to be uploaded to the FTP server
ftp_cdup()Changes the current directory to the parent directory on the FTP server
ftp_close()Closes an FTP connection
ftp_connect()Opens an FTP connection
ftp_()Deletes a file on the FTP server
ftp_exec()Executes a program/command on the FTP server
ftp_fget()Downloads a file from the FTP server and saves it to an open file
ftp_fput()Uploads from an open file and saves it to a file on the FTP server
ftp_get()Downloads a file from the FTP server
ftp_get_option()Returns runtime behaviors of the FTP connection
ftp_chdir()Changes the current directory on the FTP server
ftp_chmod()Sets permissions on a file via FTP
ftp_login()Logs on to an FTP connection
ftp_mdtm()Returns the last modified time of a specified file
ftp_mkdir()Creates a new directory on the FTP server
ftp_nb_continue()Continues retrieving/sending a file (non-blocking)
ftp_nb_fget()Downloads a file from the FTP server and saves it to an open file (non-blocking)
ftp_nb_fput()Uploads from an open file and saves it to a file on the FTP server (non-blocking)
ftp_nb_get()Downloads a file from the FTP server (non-blocking)
ftp_nb_put()Uploads a file to the FTP server (non-blocking)
ftp_nlist()Lists the files in a specified directory on the FTP server
ftp_pasv()Turns passive mode on or off
ftp_put()Uploads a file to the FTP server
ftp_pwd()Returns the current directory name
ftp_quit()Alias of ftp_close()
ftp_raw()Sends a raw command to the FTP server
ftp_rawlist()Returns a detailed list of files in the specified directory
ftp_rename()Renames a file or directory on the FTP server
ftp_rmdir()Removes a directory on the FTP server
ftp_set_option()Sets runtime options for the FTP connection
ftp_site()Sends a SITE command to the server
ftp_size()Returns the size of the specified file
ftp_ssl_connect()Opens a secure SSL-FTP connection
ftp_systype()Returns the system type identifier of the FTP server
ftruncate()Truncates an open file to a specified length
fwrite()Writes to an open file
get_browser()Returns the capabilities of the user's browser
get_html_translation_table()Returns the translation table used by htmlspecialchars() and htmlentities()
getcwd()Returns the current working directory
getdate()Returns date/time information of a timestamp or the current local date/time
getDocNamespaces()Returns the namespaces DECLARED in document
getChildren()Returns the child elements of the current element
getName()Returns the name of the XML tag referenced by the SimpleXML element
getNamespaces()Returns the namespaces USED in document
getrandmax()Returns the largest possible value returned by rand()
gettimeofday()Returns the current time
glob()Returns an array of filenames / directories matching a specified pattern
gmdate()Formats a GMT/UTC date and time
gmmktime()Returns the Unix timestamp for a GMT date
gmstrftime()Formats a GMT/UTC date and time according to locale settings
gregoriantojd()Converts a Gregorian date to a Julian Day Count
hasChildren()Cheks whether the current element has children
header()Sends a raw HTTP header to a client
headers_list()Returns a list of response headers sent (or ready to send)
headers_sent()Checks if / where the HTTP headers have been sent
hebrev()Converts Hebrew text to visual text
hebrevc()Converts Hebrew text to visual text and new lines (\n) into
hex2bin()Converts a string of hexadecimal values to ASCII characters
hexdec()Converts a hexadecimal number to a decimal number
highlight_file()Outputs a file with the PHP syntax highlighted
highlight_string()Outputs a string with the PHP syntax highlighted
html_entity_decode()Converts HTML entities to characters
htmlentities()Converts characters to HTML entities
htmlspecialchars()Converts some predefined characters to HTML entities
htmlspecialchars_decode()Converts some predefined HTML entities to characters
hypot()Calculates the hypotenuse of a right-angle triangle
chdir()Changes the current directory
checkdate()Validates a Gregorian date
chgrp()Changes the file group
children()Finds the children of a specified node
chmod()Changes the file mode
chop()Removes whitespace or other characters from the right end of a string
chown()Changes the file owner
chr()Returns a character from a specified ASCII value
chroot()Changes the root directory
chunk_split()Splits a string into a series of smaller parts
idate()Formats a local time/date as integer
ignore_user_abort()Sets whether a remote client can abort the running of a script
implode()Returns a string from the elements of an array
in_array()Checks if a specified value exists in an array
is_dir()Checks whether a file is a directory
is_executable()Checks whether a file is executable
is_file()Checks whether a file is a regular file
is_finite()Checks whether a value is finite or not
is_infinite()Checks whether a value is infinite or not
is_link()Checks whether a file is a link
is_nan()Checks whether a value is 'not-a-number'
is_readable()Checks whether a file is readable
is_uploaded_file()Checks whether a file was uploaded via HTTP POST
is_writable()Checks whether a file is writeable
is_writeable()Alias of is_writable()
jddayofweek()Returns the day of the week
jdmonthname()Returns a month name
jdtofrench()Converts a Julian Day Count to a French Republican date
jdtogregorian()Converts a Julian Day Count to a Gregorian date
jdtojewish()Converts a Julian Day Count to a Jewish date
jdtojulian()Converts a Julian Day Count to a Julian date
jdtounix()Converts Julian Day Count to Unix timestamp
jewishtojd()Converts a Jewish date to a Julian Day Count
join()Alias of implode()
juliantojd()Converts a Julian date to a Julian Day Count
key()Fetches a key from an array
key()Return the current key
krsort()Sorts an associative array in descending order, according to the key
ksort()Sorts an associative array in ascending order, according to the key
lcfirst()Converts the first character of a string to lowercase
lcg_value()Returns a pseudo random number in a range between 0 and 1
levenshtein()Returns the Levenshtein distance between two strings
lchgrp()Changes group ownership of symlink
lchown()Changes user ownership of symlink
libxml_clear_errors()Clear libxml error buffer
LIBXML_COMPACTSet small nodes allocation optimization. This may improve the application performance
LIBXML_DOTTED_VERSIONGet dotted libxml version (e.g. 2.6.5 or 2.6.17)
LIBXML_DTDATTRSet default DTD attributes
LIBXML_DTDLOADLoad external subset
LIBXML_DTDVALIDValidate with the DTD
LIBXML_ERR_ERRORGet recoverable errors
LIBXML_ERR_FATALGet fatal errors
LIBXML_ERR_NONEGet no errors
LIBXML_ERR_WARNINGGet simple warnings
libxml_get_errors()Retrieve array of errors
libxml_get_last_error()Retrieve last error from libxml
LIBXML_NOBLANKSRemove blank nodes
LIBXML_NOCDATASet CDATA as text nodes
LIBXML_NOEMPTYTAGChange empty tags (e.g.
to

), only available in the DOMDocument->save() and DOMDocument->saveXML() functions
LIBXML_NOENTSubstitute entities
LIBXML_NOERRORDo not show error reports
LIBXML_NONETStop network access while loading documents
LIBXML_NOWARNINGDo not show warning reports
LIBXML_NOXMLDECLDrop the XML declaration when saving a document
LIBXML_NSCLEANRemove excess namespace declarations
libxml_set_streams_context()Set the streams context for the next libxml document load or write
libxml_use_internal_errors()Disable libxml errors and allow user to fetch error information as needed
LIBXML_VERSIONGet libxml version (e.g. 20605 or 20617)
LIBXML_XINCLUDEUse XInclude substitution
link()Creates a hard link
linkinfo()Returns information about a hard link
list()Assigns variables as if they were an array
localeconv()Returns locale numeric and monetary formatting information
localtime()Returns the local time
log()Returns the natural logarithm of a number
log10()Returns the base-10 logarithm of a number
log1p()Returns log(1+number)
lstat()Returns information about a file or symbolic link
ltrim()Removes whitespace or other characters from the left side of a string
mail()Allows you to send emails directly from a script
max()Returns the highest value in an array, or the highest value of several specified values
md5()Calculates the MD5 hash of a string
md5_file()Calculates the MD5 hash of a file
metaphone()Calculates the metaphone key of a string
microtime()Returns the current Unix timestamp with microseconds
min()Returns the lowest value in an array, or the lowest value of several specified values
mkdir()Creates a directory
mktime()Returns the Unix timestamp for a date
money_format()Returns a string formatted as a currency string
move_uploaded_file()Moves an uploaded file to a new location
mt_getrandmax()Returns the largest possible value returned by mt_rand()
mt_rand()Generates a random integer using Mersenne Twister algorithm
mt_srand()Seeds the Mersenne Twister random number generator
mysql_kill()Asks the server to kill a MySQL thread
mysqli_affected_rows()Returns the number of affected rows in the previous MySQL operation
mysqli_autocommit()Turns on or off auto-committing database modifications
mysqli_close()Closes a previously opened database connection
mysqli_commit()Commits the current transaction
mysqli_connect()Opens a new connection to the MySQL server
mysqli_connect_errno()Returns the error code from the last connection error
mysqli_connect_error()Returns the error description from the last connection error
mysqli_data_seek()Adjusts the result pointer to an arbitrary row in the result-set
mysqli_debug()Performs debugging operations
mysqli_dump_debug_info()Dumps debugging info into the log
mysqli_errno()Returns the last error code for the most recent function call
mysqli_error()Returns the last error description for the most recent function call
mysqli_error_list()Returns a list of errors for the most recent function call
mysqli_fetch_all()Fetches all result rows as an associative array, a numeric array, or both
mysqli_fetch_array()Fetches a result row as an associative, a numeric array, or both
mysqli_fetch_assoc()Fetches a result row as an associative array
mysqli_fetch_field()Returns the next field in the result set, as an object
mysqli_fetch_field_direct()Returns meta-data for a single field in the result set, as an object
mysqli_fetch_fields()Returns an array of objects that represent the fields in a result set
mysqli_fetch_lengths()Returns the lengths of the columns of the current row in the result set
mysqli_fetch_object()Returns the current row of a result set, as an object
mysqli_fetch_row()Fetches one row from a result-set and returns it as an enumerated array
mysqli_field_count()Returns the number of columns for the most recent query
mysqli_field_seek()Sets the field cursor to the given field offset
mysqli_field_tell()Returns the position of the field cursor
mysqli_free_result()Frees the memory associated with a result
mysqli_get_client_info()Returns the MySQL client library version
mysqli_get_client_stats()Returns statistics about client per-process
mysqli_get_client_version()Returns the MySQL client library version as an integer
mysqli_get_connection_stats()Returns statistics about the client connection
mysqli_get_host_info()Returns the MySQL server hostname and the connection type
mysqli_get_charset()Returns a character set object
mysqli_get_proto_info()Returns the MySQL protocol version
mysqli_get_server_info()Returns the MySQL server version
mysqli_get_server_version()Returns the MySQL server version as an integer
mysqli_change_user()Changes the user of the specified database connection
mysqli_character_set_name()Returns the default character set for the database connection
mysqli_info()Returns information about the most recently executed query
mysqli_init()Initializes MySQLi and returns a resource for use with mysqli_real_connect()
mysqli__id()Returns the auto-generated id used in the last query
mysqli_more_results()Checks if there are more results from a multi query
mysqli_multi_query()Performs one or more queries on the database
mysqli_next_result()Prepares the next result set from mysqli_multi_query()
mysqli_num_fields()Returns the number of fields in a result set
mysqli_num_rows()Returns the number of rows in a result set
mysqli_options()Sets extra connect options and affect behavior for a connection
mysqli_ping()Pings a server connection, or tries to reconnect if the connection has gone down
mysqli_prepare()Prepares an SQL statement for execution
mysqli_query()Performs a query against the database
mysqli_real_connect()Opens a new connection to the MySQL server
mysqli_real_escape_string()Escapes special characters in a string for use in an SQL statement
mysqli_real_query()Executes an SQL query
mysqli_reap_async_query()Returns the result from async query
mysqli_refresh()Refreshes tables or caches, or resets the replication server information
mysqli_rollback()Rolls back the current transaction for the database
mysqli__db()Changes the default database for the connection
mysqli_set_charset()Sets the default client character set
mysqli_set_local_infile_default()Unsets user defined handler for load local infile command
mysqli_set_local_infile_handler()Set callback function for LOAD DATA LOCAL INFILE command
mysqli_sqlstate()Returns the SQLSTATE error code for the last MySQL operation
mysqli_ssl_set()Used to establish secure connections using SSL
mysqli_stat()Returns the current system status
mysqli_stmt_init()Initializes a statement and returns an object for use with mysqli_stmt_prepare()
mysqli_store_result()Transfers a result set from the last query
mysqli_thread_id()Returns the thread ID for the current connection
mysqli_thread_safe()Returns whether the client library is compiled as thread-safe
mysqli_use_result()Initiates the retrieval of a result set from the last query executed using the mysqli_real_query()
mysqli_warning_count()Returns the number of warnings from the last query in the connection
natcasesort()Sorts an array using a case insensitive "natural order" algorithm
natsort()Sorts an array using a "natural order" algorithm
next()Advance the internal array pointer of an array
next()Moves to the next element
nl_langinfo()Returns specific local information
nl2br()Inserts HTML line breaks in front of each newline in a string
number_format()Formats a number with grouped thousands
octdec()Converts an octal number to a decimal number
opendir()Opens a directory handle
ord()Returns the ASCII value of the first character of a string
pack()Packs data into a binary string
parse_ini_file()Parses a configuration file
parse_ini_string()Parses a configuration string
parse_str()Parses a query string into variables
pathinfo()Returns information about a file path
pclose()Closes a pipe opened by popen()
php_check_syntax()Deprecated in PHP 5.0.5
php_strip_whitespace()Returns the source code of a file with PHP comments and whitespace removed
pi()Returns the value of PI
popen()Opens a pipe
pos()Alias of current()
pow()Returns x raised to the power of y
prev()Rewinds the internal array pointer
print()Outputs one or more strings
printf()Outputs a formatted string
quoted_printable_decode()Converts a quoted-printable string to an 8-bit string
quoted_printable_encode()Converts an 8-bit string to a quoted printable string
quotemeta()Quotes meta characters
rad2deg()Converts a radian value to a degree value
rand()Generates a random integer
range()Creates an array containing a range of elements
readdir()Returns an entry from a directory handle
readfile()Reads a file and writes it to the output buffer
readlink()Returns the target of a symbolic link
realpath()Returns the absolute pathname
realpath_cache_get()Returns realpath cache entries
realpath_cache_size()Returns realpath cache size
registerXPathNamespace()Creates a namespace context for the next XPath query
rename()Renames a file or directory
reset()Sets the internal pointer of an array to its first element
restore_error_handler()Restores the previous error handler
restore_exception_handler()Restores the previous exception handler
rewind()Rewinds a file pointer
rewind()Rewind to the first element
rewinddir()Resets a directory handle
rmdir()Removes an empty directory
round()Rounds a floating-point number
rsort()Sorts an indexed array in descending order
rtrim()Removes whitespace or other characters from the right side of a string
saveXML()Alias of asXML()
scandir()Returns an array of files and directories of a specified directory
set_error_handler()Sets a user-defined function to handle errors
set_exception_handler()Sets a user-defined function to handle exceptions
set_file_buffer()Sets the buffer size of an open file
setcookie()Sends an HTTP cookie to a client
setlocale()Sets locale information
setrawcookie()Sends an HTTP cookie without URL encoding the cookie value
sha1()Calculates the SHA-1 hash of a string
sha1_file()Calculates the SHA-1 hash of a file
show_source()Alias of highlight_file()
shuffle()Shuffles an array
similar_text()Calculates the similarity between two strings
simplexml_import_dom()Returns a SimpleXMLElement object from a DOM node
simplexml_load_file()Converts an XML file into a SimpleXMLElement object
simplexml_load_string()Converts an XML string into a SimpleXMLElement object
sin()Returns the sine of a number
sinh()Returns the hyperbolic sine of a number
sizeof()Alias of count()
sleep()Delays code execution for a number of seconds
sort()Sorts an indexed array in ascending order
soundex()Calculates the soundex key of a string
sprintf()Writes a formatted string to a variable
sqrt()Returns the square root of a number
srand()Seeds the random number generator
sscanf()Parses input from a string according to a format
stat()Returns information about a file
str_getcsv()Parses a CSV string into an array
str_ireplace()Replaces some characters in a string (case-insensitive)
str_pad()Pads a string to a new length
str_repeat()Repeats a string a specified number of times
str_replace()Replaces some characters in a string (case-sensitive)
str_rot13()Performs the ROT13 encoding on a string
str_shuffle()Randomly shuffles all characters in a string
str_split()Splits a string into an array
str_word_count()Count the number of words in a string
strcasecmp()Compares two strings (case-insensitive)
strcmp()Compares two strings (case-sensitive)
strcoll()Compares two strings (locale based string comparison)
strcspn()Returns the number of characters found in a string before any part of some specified characters are found
strftime()Formats a local time and/or date according to locale settings
strchr()Finds the first occurrence of a string inside another string (alias of strstr())
strip_tags()Strips HTML and PHP tags from a string
stripcslashes()Unquotes a string quoted with addcslashes()
stripos()Returns the position of the first occurrence of a string inside another string (case-insensitive)
stripslashes()Unquotes a string quoted with addslashes()
stristr()Finds the first occurrence of a string inside another string (case-insensitive)
strlen()Returns the length of a string
strnatcasecmp()Compares two strings using a "natural order" algorithm (case-insensitive)
strnatcmp()Compares two strings using a "natural order" algorithm (case-sensitive)
strncasecmp()String comparison of the first n characters (case-insensitive)
strncmp()String comparison of the first n characters (case-sensitive)
strpbrk()Searches a string for any of a set of characters
strpos()Returns the position of the first occurrence of a string inside another string (case-sensitive)
strptime()Parses a time/date generated with strftime()
strrev()Reverses a string
strrchr()Finds the last occurrence of a string inside another string
strripos()Finds the position of the last occurrence of a string inside another string (case-insensitive)
strrpos()Finds the position of the last occurrence of a string inside another string (case-sensitive)
strspn()Returns the number of characters found in a string that contains only characters from a specified charlist
strstr()Finds the first occurrence of a string inside another string (case-sensitive)
strtok()Splits a string into smaller strings
strtolower()Converts a string to lowercase letters
strtotime()Parses an English textual datetime into a Unix timestamp
strtoupper()Converts a string to uppercase letters
strtr()Translates certain characters in a string
substr()Returns a part of a string
substr_compare()Compares two strings from a specified start position (binary safe and optionally case-sensitive)
substr_count()Counts the number of times a substring occurs in a string
substr_replace()Replaces a part of a string with another string
symlink()Creates a symbolic link
sys_getloadavg()Gets system load average
tan()Returns the tangent of a number
tanh()Returns the hyperbolic tangent of a number
tempnam()Creates a unique temporary file
time()Returns the current time as a Unix timestamp
time_nanosleep()Delays code execution for a number of seconds and nanoseconds
time_sleep_until()Delays code execution until a specified time
timezone_abbreviations_list()Returns an associative array containing dst, offset, and the timezone name
timezone_identifiers_list()Returns an indexed array with all timezone identifiers
timezone_location_get()Returns location information for a specified timezone
timezone_name_from_ abbr()Returns the timezone name from abbreviation
timezone_name_get()Returns the name of the timezone
timezone_offset_get()Returns the timezone offset from GMT
timezone_open()Creates new DateTimeZone object
timezone_transitions_get()Returns all transitions for the timezone
timezone_version_get()Returns the version of the timezone db
tmpfile()Creates a unique temporary file
touch()Sets access and modification time of a file
trigger_error()Creates a user-defined error message
trim()Removes whitespace or other characters from both sides of a string
uasort()Sorts an array by values using a user-defined comparison function
ucfirst()Converts the first character of a string to uppercase
ucwords()Converts the first character of each word in a string to uppercase
uksort()Sorts an array by keys using a user-defined comparison function
umask()Changes file permissions for files
uniqid()Generates a unique ID
unixtojd()Converts Unix timestamp to Julian Day Count
unlink()Deletes a file
unpack()Unpacks data from a binary string
user_error()Alias of trigger_error()
usleep()Delays code execution for a number of microseconds
usort()Sorts an array using a user-defined comparison function
utf8_decode()Decodes an UTF-8 string to ISO-8859-1
utf8_encode()Encodes an ISO-8859-1 string to UTF-8
valid()Check whether the current element is valid
vfprintf()Writes a formatted string to a specified output stream
vprintf()Outputs a formatted string
vsprintf()Writes a formatted string to a variable
wordwrap()Wraps a string to a given number of characters
xml_error_string()Gets an error string from the XML parser
xml_get_current_byte_index()Gets the current byte index from the XML parser
xml_get_current_column_number()Gets the current column number from the XML parser
xml_get_current_line_number()Gets the current line number from the XML parser
xml_get_error_code()Gets an error code from the XML parser
xml_parse()Parses an XML document
xml_parse_into_struct()Parse XML data into an array
xml_parser_create()Create an XML parser
xml_parser_create_ns()Create an XML parser with namespace support
xml_parser_free()Free an XML parser
xml_parser_get_option()Get options from an XML parser
xml_parser_set_option()Set options in an XML parser
xml_set_default_handler()Set default handler function
xml_set_element_handler()Set handler function for start and end element of elements
xml_set_end_namespace_decl_handler()Set handler function for the end of namespace declarations
xml_set_external_entity_ref_handler()Set handler function for external entities
xml_set_character_data_handler()Set handler function for character data
xml_set_notation_decl_handler()Set handler function for notation declarations
xml_set_object()Use XML Parser within an object
xml_set_processing_instruction_handler()Set handler function for processing instruction
xml_set_start_namespace_decl_handler()Set handler function for the start of namespace declarations
xml_set_unparsed_entity_decl_handler()Set handler function for unparsed entity declarations
xpath()Runs an XPath query on XML data
zip_close()Closes a ZIP file
zip_entry_close()Closes an entry in the ZIP file
zip_entry_compressedsize()Returns the compressed size of an entry in the ZIP file
zip_entry_compressionmethod()Returns the compression method of an entry in the ZIP file
zip_entry_filesize()Returns the actual file size of an entry in the ZIP file
zip_entry_name()Returns the name of an entry in the ZIP file
zip_entry_open()Opens an entry in the ZIP file for reading
zip_entry_read()Reads from an open entry in the ZIP file
zip_open()Opens a ZIP file
zip_read()Reads the next entry in a ZIP file

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