PHP Function By Category

This is a list of functions provided by PHP’s built-in extensions, grouped by the extension
providing each function:

Arrays

array_change_key_case	array_intersect_assoc
array_chunk	array_intersect_key
array_combine	array_intersect_uassoc
array_count_values	array_intersect_ukey
array_diff	array_key_exists
array_diff_assoc	array_keys
array_diff_key	array_map
array_diff_uassoc	array_merge
array_diff_ukey	array_merge_recursive
array_fill	array_multisort
array_fill_keys	array_pad
array_filter	array_pop
array_flip	array_product
array_intersect	array_push
array_rand	compact
array_reduce	count
array_replace	current
array_replace_recursive	each
array_reverse	end
array_search	extract
array_shift	in_array
array_slice	key
array_splice	krsort
array_sum	ksort
array_udiff	list
array_udiff_assoc	natcasesort
array_udiff_uassoc	natsort
array_uintersect	next
array_uintersect_assoc	prev
array_uintersect_uassoc	range
array_unique	reset
array_unshift	rsort
array_values	shuffle
array_walk	sort
array_walk_recursive	uasort
arsort	uksort
asort	usort

Classes and Objects

class_alias	get_object_vars
class_exists	get_parent_class
get_called_class	interface_exists
get_class_methods	is_a
get_class_vars	is_subclass_of
get_class	method_exists
get_declared_classes	property_exists
get_declared_interfaces	trait_exists
get_declared_traits

Date and Time

checkdate	date_default_timezone_set
date_default_timezone_get	date_parse_from_format
date_parse	idate
date_sun_info	localtime
date_sunrise	microtime
date_sunset	mktime
date	strftime
getdate	strptime
gettimeofday	strtotime
gmdate	time
gmmktime	timezone_name_from_abbr
gmstrftime	timezone_version_get

Directories

chdir	opendir
chroot	readdir
closedir	rewinddir
dir	scandir
getcwd

Errors and Logging

debug_backtrace	restore_error_handler
debug_print_backtrace	restore_exception_handler
error_get_last	set_error_handler
error_log	set_exception_handler
error_reporting	trigger_error

Program Execution

escapeshellarg	proc_nice
escapeshellcmd	proc_open
exec	proc_terminate
passthru	shell_exec
proc_close	system
proc_get_status

Filesystem

basename	copy
chgrp	dirname
chmod	disk_free_space
chown	disk_total_space
clearstatcache	fclose
feof	is_executable
fflush	is_file
fgetc	is_link
fgetcsv	is_readable
fgets	is_uploaded_file
fgetss	is_writable
file_exists	lchgrp
file_get_contents	lchown
file_put_contents	link
file	linkinfo
fileatime	lstat
filectime	mkdir
filegroup	move_uploaded_file
fileinode	parse_ini_file
filemtime	parse_ini_string
fileowner	pathinfo
fileperms	pclose
filesize	popen
filetype	readfile
flock	readlink
fnmatch	realpath_cache_get
fopen	realpath_cache_size
fpassthru	realpath
fputcsv	rename
fread	rewind
fscanf	rmdir
fseek	stat
fstat	symlink
ftell	tempnam
ftruncate	tmpfile
fwrite	touch
glob	umask
is_dir	unlink

Data Filtering

filter_has_var	filter_input
filter_id	filter_list
filter_input_array	filter_var_array
filter_var

Functions

call_user_func_array	forward_static_call
call_user_func	func_get_arg
create_function	func_get_args
forward_static_call_array	func_num_args
function_exists	register_tick_function
get_defined_functions	unregister_tick_function
register_shutdown_function

PHP Options/Info

assert_options	ini_get
assert	ini_restore
extension_loaded	ini_set
gc_collect_cycles	memory_get_peak_usage
gc_disable	memory_get_usage
gc_enable	php_ini_loaded_file
gc_enabled	php_ini_scanned_files
get_cfg_var	php_logo_guid
get_current_user	php_sapi_name
get_defined_constants	php_uname
get_extension_funcs	phpcredits
get_include_path	phpinfo
get_included_files	phpversion
get_loaded_extensions	putenv
getenv	restore_include_path
getlastmod	set_include_path
getmygid	set_time_limit
getmyinode	sys_get_temp_dir
getmypid	version_compare
getmyuid	zend_logo_guid
getopt	zend_thread_id
getrusage	zend_version
ini_get_all

Mail

mail

Math

abs	is_finite
acos	is_infinite
acosh	is_nan
asin	lcg_value
asinh	log10
atan2	log1p
atan	log
atanh	max
base_convert	min
bindec	mt_getrandmax
ceil	mt_rand
cos	mt_srand
cosh	octdec
decbin	pi
dechex	pow
decoct	rad2deg
deg2rad	rand
exp	round
expm1	sin
floor	sinh
fmod	sqrt
getrandmax	srand
hexdec	tan
hypot	tanh

Miscellaneous Functions

connection_aborted	pack
connection_status	php_strip_whitespace
constant	sleep
define	sys_getloadavg
defined	time_nanosleep
get_browser	time_sleep_until
highlight_file	uniqid
highlight_string	unpack
ignore_user_abort	usleep

Network

checkdnsrr	header
closelog	headers_list
fsockopen	headers_sent
gethostbyaddr	inet_ntop
gethostbyname	inet_pton
gethostbynamel	ip2long
gethostname	long2ip
getmxrr	openlog
getprotobyname	pfsockopen
getprotobynumber	setcookie
getservbyname	setrawcookie
getservbyport	syslog
header_remove

Output Buffering

flush	ob_get_level
ob_clean	ob_get_status
ob_end_clean	ob_gzhandler
ob_end_flush	ob_implicit_flush
ob_flush	ob_list_handlers
ob_get_clean	ob_start
ob_get_contents	output_add_rewrite_var
ob_get_flush	output_reset_rewrite_vars
ob_get_length

Session Handling

session_cache_expire	session_regenerate_id
session_cache_limiter	session_register_shutdown
session_decode	session_save_path
session_destroy	session_set_cookie_params
session_encode	session_set_save_handler
session_get_cookie_params	session_start
session_id	session_status
session_module_name	session_unset
session_name	session_write_close

Streams

stream_bucket_append	stream_bucket_make_writeable
stream_bucket_new	stream_notification_callback
stream_bucket_prepend	stream_resolve_include_path
stream_context_create	stream_select
stream_context_get_default	stream_set_blocking
stream_context_get_options	stream_set_chunk_size
stream_context_get_params	stream_set_read_buffer
stream_context_set_default	stream_set_timeout
stream_context_set_option	stream_set_write_buffer
stream_context_set_params	stream_socket_accept
stream_copy_to_stream	stream_socket_client
stream_encoding	stream_socket_enable_crypto
stream_filter_append	stream_socket_get_name
stream_filter_prepend	stream_socket_pair
stream_filter_register	stream_socket_recvfrom
stream_filter_remove	stream_socket_sendto
stream_get_contents	stream_socket_server
stream_get_filters	stream_socket_shutdown
stream_get_line	stream_supports_lock
stream_get_meta_data	stream_wrapper_register
stream_get_transports	stream_wrapper_restore
stream_get_wrappers	stream_wrapper_unregister
stream_is_local

Strings

addcslashes	get_html_translation_table
addslashes	hebrev
bin2hex	hebrevc
chr	hex2bin
chunk_split	html_entity_decode
convert_cyr_string	htmlentities
convert_uudecode	htmlspecialchars_decode
convert_uuencode	htmlspecialchars
count_chars	implode
crc32	lcfirst
crypt	levenshtein
echo	localeconv
explode	ltrim
fprintf	md5_file
md5	strip_tags
metaphone	stripcslashes
money_format	stripos
nl_langinfo	stripslashes
nl2br	stristr
number_format	strlen
ord	strnatcasecmp
parse_str	strnatcmp
printf	strncasecmp
quoted_printable_decode	strncmp
quoted_printable_encode	strpbrk
quotemeta	strpos
rtrim	strrchr
setlocale	strrev
sha1_file	strripos
sha1	strrpos
similar_text	strspn
soundex	strstr
sprintf	strtok
sscanf	strtolower
str_getcsv	strtoupper
str_ireplace	strtr
str_pad	substr_compare
str_repeat	substr_count
str_replace	substr_replace
str_rot13	substr
str_shuffle	trim
str_split	ucfirst
str_word_count	ucwords
strcasecmp	vfprintf
strcmp	vprintf
strcoll	vsprintf
strcspn	wordwrap

PHP Language Tokenizer

token_get_all

token_name

URLs

base64_decode	parse_url
base64_encode	rawurldecode
get_headers	rawurlencode
get_meta_tags	urldecode
http_build_query	urlencode

Variables

debug_zval_dump	is_object
empty	is_resource
floatval	is_scalar
get_defined_vars	is_string
get_resource_type	isset
gettype	print_r
intval	serialize
is_array	settype
is_bool	strval
is_callable	unserialize
is_float	unset
is_int	var_dump
is_null	var_export
is_numeric

Categories: PHP and Yii