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PHP Extensions List (loaded extensions only):

My PHP installation version: 5.3.29
Click on the links get information about each extension's functions.

| Extensions Only | Expand functions |
1. Core
2. date
3. ereg
4. libxml
5. openssl
6. pcre
7. sqlite3
8. zlib
9. bcmath
10. bz2
11. calendar
12. ctype
13. curl
14. dom
15. hash
16. fileinfo
17. filter
18. ftp
19. gd
20. gettext
21. SPL
22. iconv
23. session
24. json
25. mbstring
26. mcrypt
27. mysql
28. mysqli
29. pgsql
30. standard
- 1 constant
- 2 bin2hex
- 3 sleep
- 4 usleep
- 5 time_nanosleep
- 6 time_sleep_until
- 7 strptime
- 8 flush
- 9 wordwrap
- 10 htmlspecialchars
- 11 htmlentities
- 12 html_entity_decode
- 13 htmlspecialchars_decode
- 14 get_html_translation_table
- 15 sha1
- 16 sha1_file
- 17 md5
- 18 md5_file
- 19 crc32
- 20 iptcparse
- 21 iptcembed
- 22 getimagesize
- 23 image_type_to_mime_type
- 24 image_type_to_extension
- 25 phpinfo
- 26 phpversion
- 27 phpcredits
- 28 php_logo_guid
- 29 php_real_logo_guid
- 30 php_egg_logo_guid
- 31 zend_logo_guid
- 32 php_sapi_name
- 33 php_uname
- 34 php_ini_scanned_files
- 35 php_ini_loaded_file
- 36 strnatcmp
- 37 strnatcasecmp
- 38 substr_count
- 39 strspn
- 40 strcspn
- 41 strtok
- 42 strtoupper
- 43 strtolower
- 44 strpos
- 45 stripos
- 46 strrpos
- 47 strripos
- 48 strrev
- 49 hebrev
- 50 hebrevc
- 51 nl2br
- 52 basename
- 53 dirname
- 54 pathinfo
- 55 stripslashes
- 56 stripcslashes
- 57 strstr
- 58 stristr
- 59 strrchr
- 60 str_shuffle
- 61 str_word_count
- 62 str_split
- 63 strpbrk
- 64 substr_compare
- 65 strcoll
- 66 money_format
- 67 substr
- 68 substr_replace
- 69 quotemeta
- 70 ucfirst
- 71 lcfirst
- 72 ucwords
- 73 strtr
- 74 addslashes
- 75 addcslashes
- 76 rtrim
- 77 str_replace
- 78 str_ireplace
- 79 str_repeat
- 80 count_chars
- 81 chunk_split
- 82 trim
- 83 ltrim
- 84 strip_tags
- 85 similar_text
- 86 explode
- 87 implode
- 88 join
- 89 setlocale
- 90 localeconv
- 91 nl_langinfo
- 92 soundex
- 93 levenshtein
- 94 chr
- 95 ord
- 96 parse_str
- 97 str_getcsv
- 98 str_pad
- 99 chop
- 100 strchr
- 101 sprintf
- 102 printf
- 103 vprintf
- 104 vsprintf
- 105 fprintf
- 106 vfprintf
- 107 sscanf
- 108 fscanf
- 109 parse_url
- 110 urlencode
- 111 urldecode
- 112 rawurlencode
- 113 rawurldecode
- 114 http_build_query
- 115 readlink
- 116 linkinfo
- 117 symlink
- 118 link
- 119 unlink
- 120 exec
- 121 system
- 122 escapeshellcmd
- 123 escapeshellarg
- 124 passthru
- 125 shell_exec
- 126 proc_open
- 127 proc_close
- 128 proc_terminate
- 129 proc_get_status
- 130 proc_nice
- 131 rand
- 132 srand
- 133 getrandmax
- 134 mt_rand
- 135 mt_srand
- 136 mt_getrandmax
- 137 getservbyname
- 138 getservbyport
- 139 getprotobyname
- 140 getprotobynumber
- 141 getmyuid
- 142 getmygid
- 143 getmypid
- 144 getmyinode
- 145 getlastmod
- 146 base64_decode
- 147 base64_encode
- 148 convert_uuencode
- 149 convert_uudecode
- 150 abs
- 151 ceil
- 152 floor
- 153 round
- 154 sin
- 155 cos
- 156 tan
- 157 asin
- 158 acos
- 159 atan
- 160 atanh
- 161 atan2
- 162 sinh
- 163 cosh
- 164 tanh
- 165 asinh
- 166 acosh
- 167 expm1
- 168 log1p
- 169 pi
- 170 is_finite
- 171 is_nan
- 172 is_infinite
- 173 pow
- 174 exp
- 175 log
- 176 log10
- 177 sqrt
- 178 hypot
- 179 deg2rad
- 180 rad2deg
- 181 bindec
- 182 hexdec
- 183 octdec
- 184 decbin
- 185 decoct
- 186 dechex
- 187 base_convert
- 188 number_format
- 189 fmod
- 190 inet_ntop
- 191 inet_pton
- 192 ip2long
- 193 long2ip
- 194 getenv
- 195 putenv
- 196 getopt
- 197 sys_getloadavg
- 198 microtime
- 199 gettimeofday
- 200 getrusage
- 201 uniqid
- 202 quoted_printable_decode
- 203 quoted_printable_encode
- 204 convert_cyr_string
- 205 get_current_user
- 206 set_time_limit
- 207 get_cfg_var
- 208 magic_quotes_runtime
- 209 set_magic_quotes_runtime
- 210 get_magic_quotes_gpc
- 211 get_magic_quotes_runtime
- 212 import_request_variables
- 213 error_log
- 214 error_get_last
- 215 call_user_func
- 216 call_user_func_array
- 217 call_user_method
- 218 call_user_method_array
- 219 forward_static_call
- 220 forward_static_call_array
- 221 serialize
- 222 unserialize
- 223 var_dump
- 224 var_export
- 225 debug_zval_dump
- 226 print_r
- 227 memory_get_usage
- 228 memory_get_peak_usage
- 229 register_shutdown_function
- 230 register_tick_function
- 231 unregister_tick_function
- 232 highlight_file
- 233 show_source
- 234 highlight_string
- 235 php_strip_whitespace
- 236 ini_get
- 237 ini_get_all
- 238 ini_set
- 239 ini_alter
- 240 ini_restore
- 241 get_include_path
- 242 set_include_path
- 243 restore_include_path
- 244 setcookie
- 245 setrawcookie
- 246 header
- 247 header_remove
- 248 headers_sent
- 249 headers_list
- 250 connection_aborted
- 251 connection_status
- 252 ignore_user_abort
- 253 parse_ini_file
- 254 parse_ini_string
- 255 is_uploaded_file
- 256 move_uploaded_file
- 257 gethostbyaddr
- 258 gethostbyname
- 259 gethostbynamel
- 260 gethostname
- 261 dns_check_record
- 262 checkdnsrr
- 263 dns_get_mx
- 264 getmxrr
- 265 dns_get_record
- 266 intval
- 267 floatval
- 268 doubleval
- 269 strval
- 270 gettype
- 271 settype
- 272 is_null
- 273 is_resource
- 274 is_bool
- 275 is_long
- 276 is_float
- 277 is_int
- 278 is_integer
- 279 is_double
- 280 is_real
- 281 is_numeric
- 282 is_string
- 283 is_array
- 284 is_object
- 285 is_scalar
- 286 is_callable
- 287 pclose
- 288 popen
- 289 readfile
- 290 rewind
- 291 rmdir
- 292 umask
- 293 fclose
- 294 feof
- 295 fgetc
- 296 fgets
- 297 fgetss
- 298 fread
- 299 fopen
- 300 fpassthru
- 301 ftruncate
- 302 fstat
- 303 fseek
- 304 ftell
- 305 fflush
- 306 fwrite
- 307 fputs
- 308 mkdir
- 309 rename
- 310 copy
- 311 tempnam
- 312 tmpfile
- 313 file
- 314 file_get_contents
- 315 file_put_contents
- 316 stream_select
- 317 stream_context_create
- 318 stream_context_set_params
- 319 stream_context_get_params
- 320 stream_context_set_option
- 321 stream_context_get_options
- 322 stream_context_get_default
- 323 stream_context_set_default
- 324 stream_filter_prepend
- 325 stream_filter_append
- 326 stream_filter_remove
- 327 stream_socket_client
- 328 stream_socket_server
- 329 stream_socket_accept
- 330 stream_socket_get_name
- 331 stream_socket_recvfrom
- 332 stream_socket_sendto
- 333 stream_socket_enable_crypto
- 334 stream_socket_shutdown
- 335 stream_socket_pair
- 336 stream_copy_to_stream
- 337 stream_get_contents
- 338 stream_supports_lock
- 339 fgetcsv
- 340 fputcsv
- 341 flock
- 342 get_meta_tags
- 343 stream_set_read_buffer
- 344 stream_set_write_buffer
- 345 set_file_buffer
- 346 set_socket_blocking
- 347 stream_set_blocking
- 348 socket_set_blocking
- 349 stream_get_meta_data
- 350 stream_get_line
- 351 stream_wrapper_register
- 352 stream_register_wrapper
- 353 stream_wrapper_unregister
- 354 stream_wrapper_restore
- 355 stream_get_wrappers
- 356 stream_get_transports
- 357 stream_resolve_include_path
- 358 stream_is_local
- 359 get_headers
- 360 stream_set_timeout
- 361 socket_set_timeout
- 362 socket_get_status
- 363 realpath
- 364 fnmatch
- 365 fsockopen
- 366 pfsockopen
- 367 pack
- 368 unpack
- 369 get_browser
- 370 crypt
- 371 opendir
- 372 closedir
- 373 chdir
- 374 chroot
- 375 getcwd
- 376 rewinddir
- 377 readdir
- 378 dir
- 379 scandir
- 380 glob
- 381 fileatime
- 382 filectime
- 383 filegroup
- 384 fileinode
- 385 filemtime
- 386 fileowner
- 387 fileperms
- 388 filesize
- 389 filetype
- 390 file_exists
- 391 is_writable
- 392 is_writeable
- 393 is_readable
- 394 is_executable
- 395 is_file
- 396 is_dir
- 397 is_link
- 398 stat
- 399 lstat
- 400 chown
- 401 chgrp
- 402 lchown
- 403 lchgrp
- 404 chmod
- 405 touch
- 406 clearstatcache
- 407 disk_total_space
- 408 disk_free_space
- 409 diskfreespace
- 410 realpath_cache_size
- 411 realpath_cache_get
- 412 mail
- 413 ezmlm_hash
- 414 openlog
- 415 syslog
- 416 closelog
- 417 define_syslog_variables
- 418 lcg_value
- 419 metaphone
- 420 ob_start
- 421 ob_flush
- 422 ob_clean
- 423 ob_end_flush
- 424 ob_end_clean
- 425 ob_get_flush
- 426 ob_get_clean
- 427 ob_get_length
- 428 ob_get_level
- 429 ob_get_status
- 430 ob_get_contents
- 431 ob_implicit_flush
- 432 ob_list_handlers
- 433 ksort
- 434 krsort
- 435 natsort
- 436 natcasesort
- 437 asort
- 438 arsort
- 439 sort
- 440 rsort
- 441 usort
- 442 uasort
- 443 uksort
- 444 shuffle
- 445 array_walk
- 446 array_walk_recursive
- 447 count
- 448 end
- 449 prev
- 450 next
- 451 reset
- 452 current
- 453 key
- 454 min
- 455 max
- 456 in_array
- 457 array_search
- 458 extract
- 459 compact
- 460 array_fill
- 461 array_fill_keys
- 462 range
- 463 array_multisort
- 464 array_push
- 465 array_pop
- 466 array_shift
- 467 array_unshift
- 468 array_splice
- 469 array_slice
- 470 array_merge
- 471 array_merge_recursive
- 472 array_replace
- 473 array_replace_recursive
- 474 array_keys
- 475 array_values
- 476 array_count_values
- 477 array_reverse
- 478 array_reduce
- 479 array_pad
- 480 array_flip
- 481 array_change_key_case
- 482 array_rand
- 483 array_unique
- 484 array_intersect
- 485 array_intersect_key
- 486 array_intersect_ukey
- 487 array_uintersect
- 488 array_intersect_assoc
- 489 array_uintersect_assoc
- 490 array_intersect_uassoc
- 491 array_uintersect_uassoc
- 492 array_diff
- 493 array_diff_key
- 494 array_diff_ukey
- 495 array_udiff
- 496 array_diff_assoc
- 497 array_udiff_assoc
- 498 array_diff_uassoc
- 499 array_udiff_uassoc
- 500 array_sum
- 501 array_product
- 502 array_filter
- 503 array_map
- 504 array_chunk
- 505 array_combine
- 506 array_key_exists
- 507 pos
- 508 sizeof
- 509 key_exists
- 510 assert
- 511 assert_options
- 512 version_compare
- 513 ftok
- 514 str_rot13
- 515 stream_get_filters
- 516 stream_filter_register
- 517 stream_bucket_make_writeable
- 518 stream_bucket_prepend
- 519 stream_bucket_append
- 520 stream_bucket_new
- 521 output_add_rewrite_var
- 522 output_reset_rewrite_vars
- 523 sys_get_temp_dir
31. Phar
32. posix
33. pspell
34. Reflection
35. imap
36. SimpleXML
37. soap
38. sockets
39. exif
40. tokenizer
41. wddx
42. xml
43. xmlreader
44. xmlrpc
45. xmlwriter
46. xsl
47. zip
48. cgi-fcgi