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PHP Extensions List (loaded extensions only):

My PHP installation version: 5.4.45
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. intl
25. json
26. mbstring
27. mcrypt
28. standard
- 1 constant
- 2 bin2hex
- 3 hex2bin
- 4 sleep
- 5 usleep
- 6 time_nanosleep
- 7 time_sleep_until
- 8 strptime
- 9 flush
- 10 wordwrap
- 11 htmlspecialchars
- 12 htmlentities
- 13 html_entity_decode
- 14 htmlspecialchars_decode
- 15 get_html_translation_table
- 16 sha1
- 17 sha1_file
- 18 md5
- 19 md5_file
- 20 crc32
- 21 iptcparse
- 22 iptcembed
- 23 getimagesize
- 24 getimagesizefromstring
- 25 image_type_to_mime_type
- 26 image_type_to_extension
- 27 phpinfo
- 28 phpversion
- 29 phpcredits
- 30 php_logo_guid
- 31 php_real_logo_guid
- 32 php_egg_logo_guid
- 33 zend_logo_guid
- 34 php_sapi_name
- 35 php_uname
- 36 php_ini_scanned_files
- 37 php_ini_loaded_file
- 38 strnatcmp
- 39 strnatcasecmp
- 40 substr_count
- 41 strspn
- 42 strcspn
- 43 strtok
- 44 strtoupper
- 45 strtolower
- 46 strpos
- 47 stripos
- 48 strrpos
- 49 strripos
- 50 strrev
- 51 hebrev
- 52 hebrevc
- 53 nl2br
- 54 basename
- 55 dirname
- 56 pathinfo
- 57 stripslashes
- 58 stripcslashes
- 59 strstr
- 60 stristr
- 61 strrchr
- 62 str_shuffle
- 63 str_word_count
- 64 str_split
- 65 strpbrk
- 66 substr_compare
- 67 strcoll
- 68 money_format
- 69 substr
- 70 substr_replace
- 71 quotemeta
- 72 ucfirst
- 73 lcfirst
- 74 ucwords
- 75 strtr
- 76 addslashes
- 77 addcslashes
- 78 rtrim
- 79 str_replace
- 80 str_ireplace
- 81 str_repeat
- 82 count_chars
- 83 chunk_split
- 84 trim
- 85 ltrim
- 86 strip_tags
- 87 similar_text
- 88 explode
- 89 implode
- 90 join
- 91 setlocale
- 92 localeconv
- 93 nl_langinfo
- 94 soundex
- 95 levenshtein
- 96 chr
- 97 ord
- 98 parse_str
- 99 str_getcsv
- 100 str_pad
- 101 chop
- 102 strchr
- 103 sprintf
- 104 printf
- 105 vprintf
- 106 vsprintf
- 107 fprintf
- 108 vfprintf
- 109 sscanf
- 110 fscanf
- 111 parse_url
- 112 urlencode
- 113 urldecode
- 114 rawurlencode
- 115 rawurldecode
- 116 http_build_query
- 117 readlink
- 118 linkinfo
- 119 symlink
- 120 link
- 121 unlink
- 122 exec
- 123 system
- 124 escapeshellcmd
- 125 escapeshellarg
- 126 passthru
- 127 shell_exec
- 128 proc_open
- 129 proc_close
- 130 proc_terminate
- 131 proc_get_status
- 132 proc_nice
- 133 rand
- 134 srand
- 135 getrandmax
- 136 mt_rand
- 137 mt_srand
- 138 mt_getrandmax
- 139 getservbyname
- 140 getservbyport
- 141 getprotobyname
- 142 getprotobynumber
- 143 getmyuid
- 144 getmygid
- 145 getmypid
- 146 getmyinode
- 147 getlastmod
- 148 base64_decode
- 149 base64_encode
- 150 convert_uuencode
- 151 convert_uudecode
- 152 abs
- 153 ceil
- 154 floor
- 155 round
- 156 sin
- 157 cos
- 158 tan
- 159 asin
- 160 acos
- 161 atan
- 162 atanh
- 163 atan2
- 164 sinh
- 165 cosh
- 166 tanh
- 167 asinh
- 168 acosh
- 169 expm1
- 170 log1p
- 171 pi
- 172 is_finite
- 173 is_nan
- 174 is_infinite
- 175 pow
- 176 exp
- 177 log
- 178 log10
- 179 sqrt
- 180 hypot
- 181 deg2rad
- 182 rad2deg
- 183 bindec
- 184 hexdec
- 185 octdec
- 186 decbin
- 187 decoct
- 188 dechex
- 189 base_convert
- 190 number_format
- 191 fmod
- 192 inet_ntop
- 193 inet_pton
- 194 ip2long
- 195 long2ip
- 196 getenv
- 197 putenv
- 198 getopt
- 199 sys_getloadavg
- 200 microtime
- 201 gettimeofday
- 202 getrusage
- 203 uniqid
- 204 quoted_printable_decode
- 205 quoted_printable_encode
- 206 convert_cyr_string
- 207 get_current_user
- 208 set_time_limit
- 209 header_register_callback
- 210 get_cfg_var
- 211 magic_quotes_runtime
- 212 set_magic_quotes_runtime
- 213 get_magic_quotes_gpc
- 214 get_magic_quotes_runtime
- 215 error_log
- 216 error_get_last
- 217 call_user_func
- 218 call_user_func_array
- 219 call_user_method
- 220 call_user_method_array
- 221 forward_static_call
- 222 forward_static_call_array
- 223 serialize
- 224 unserialize
- 225 var_dump
- 226 var_export
- 227 debug_zval_dump
- 228 print_r
- 229 memory_get_usage
- 230 memory_get_peak_usage
- 231 register_shutdown_function
- 232 register_tick_function
- 233 unregister_tick_function
- 234 highlight_file
- 235 show_source
- 236 highlight_string
- 237 php_strip_whitespace
- 238 ini_get
- 239 ini_get_all
- 240 ini_set
- 241 ini_alter
- 242 ini_restore
- 243 get_include_path
- 244 set_include_path
- 245 restore_include_path
- 246 setcookie
- 247 setrawcookie
- 248 header
- 249 header_remove
- 250 headers_sent
- 251 headers_list
- 252 http_response_code
- 253 connection_aborted
- 254 connection_status
- 255 ignore_user_abort
- 256 parse_ini_file
- 257 parse_ini_string
- 258 is_uploaded_file
- 259 move_uploaded_file
- 260 gethostbyaddr
- 261 gethostbyname
- 262 gethostbynamel
- 263 gethostname
- 264 dns_check_record
- 265 checkdnsrr
- 266 dns_get_mx
- 267 getmxrr
- 268 dns_get_record
- 269 intval
- 270 floatval
- 271 doubleval
- 272 strval
- 273 gettype
- 274 settype
- 275 is_null
- 276 is_resource
- 277 is_bool
- 278 is_long
- 279 is_float
- 280 is_int
- 281 is_integer
- 282 is_double
- 283 is_real
- 284 is_numeric
- 285 is_string
- 286 is_array
- 287 is_object
- 288 is_scalar
- 289 is_callable
- 290 pclose
- 291 popen
- 292 readfile
- 293 rewind
- 294 rmdir
- 295 umask
- 296 fclose
- 297 feof
- 298 fgetc
- 299 fgets
- 300 fgetss
- 301 fread
- 302 fopen
- 303 fpassthru
- 304 ftruncate
- 305 fstat
- 306 fseek
- 307 ftell
- 308 fflush
- 309 fwrite
- 310 fputs
- 311 mkdir
- 312 rename
- 313 copy
- 314 tempnam
- 315 tmpfile
- 316 file
- 317 file_get_contents
- 318 file_put_contents
- 319 stream_select
- 320 stream_context_create
- 321 stream_context_set_params
- 322 stream_context_get_params
- 323 stream_context_set_option
- 324 stream_context_get_options
- 325 stream_context_get_default
- 326 stream_context_set_default
- 327 stream_filter_prepend
- 328 stream_filter_append
- 329 stream_filter_remove
- 330 stream_socket_client
- 331 stream_socket_server
- 332 stream_socket_accept
- 333 stream_socket_get_name
- 334 stream_socket_recvfrom
- 335 stream_socket_sendto
- 336 stream_socket_enable_crypto
- 337 stream_socket_shutdown
- 338 stream_socket_pair
- 339 stream_copy_to_stream
- 340 stream_get_contents
- 341 stream_supports_lock
- 342 fgetcsv
- 343 fputcsv
- 344 flock
- 345 get_meta_tags
- 346 stream_set_read_buffer
- 347 stream_set_write_buffer
- 348 set_file_buffer
- 349 stream_set_chunk_size
- 350 set_socket_blocking
- 351 stream_set_blocking
- 352 socket_set_blocking
- 353 stream_get_meta_data
- 354 stream_get_line
- 355 stream_wrapper_register
- 356 stream_register_wrapper
- 357 stream_wrapper_unregister
- 358 stream_wrapper_restore
- 359 stream_get_wrappers
- 360 stream_get_transports
- 361 stream_resolve_include_path
- 362 stream_is_local
- 363 get_headers
- 364 stream_set_timeout
- 365 socket_set_timeout
- 366 socket_get_status
- 367 realpath
- 368 fnmatch
- 369 fsockopen
- 370 pfsockopen
- 371 pack
- 372 unpack
- 373 get_browser
- 374 crypt
- 375 opendir
- 376 closedir
- 377 chdir
- 378 getcwd
- 379 rewinddir
- 380 readdir
- 381 dir
- 382 scandir
- 383 glob
- 384 fileatime
- 385 filectime
- 386 filegroup
- 387 fileinode
- 388 filemtime
- 389 fileowner
- 390 fileperms
- 391 filesize
- 392 filetype
- 393 file_exists
- 394 is_writable
- 395 is_writeable
- 396 is_readable
- 397 is_executable
- 398 is_file
- 399 is_dir
- 400 is_link
- 401 stat
- 402 lstat
- 403 chown
- 404 chgrp
- 405 lchown
- 406 lchgrp
- 407 chmod
- 408 touch
- 409 clearstatcache
- 410 disk_total_space
- 411 disk_free_space
- 412 diskfreespace
- 413 realpath_cache_size
- 414 realpath_cache_get
- 415 mail
- 416 ezmlm_hash
- 417 openlog
- 418 syslog
- 419 closelog
- 420 lcg_value
- 421 metaphone
- 422 ob_start
- 423 ob_flush
- 424 ob_clean
- 425 ob_end_flush
- 426 ob_end_clean
- 427 ob_get_flush
- 428 ob_get_clean
- 429 ob_get_length
- 430 ob_get_level
- 431 ob_get_status
- 432 ob_get_contents
- 433 ob_implicit_flush
- 434 ob_list_handlers
- 435 ksort
- 436 krsort
- 437 natsort
- 438 natcasesort
- 439 asort
- 440 arsort
- 441 sort
- 442 rsort
- 443 usort
- 444 uasort
- 445 uksort
- 446 shuffle
- 447 array_walk
- 448 array_walk_recursive
- 449 count
- 450 end
- 451 prev
- 452 next
- 453 reset
- 454 current
- 455 key
- 456 min
- 457 max
- 458 in_array
- 459 array_search
- 460 extract
- 461 compact
- 462 array_fill
- 463 array_fill_keys
- 464 range
- 465 array_multisort
- 466 array_push
- 467 array_pop
- 468 array_shift
- 469 array_unshift
- 470 array_splice
- 471 array_slice
- 472 array_merge
- 473 array_merge_recursive
- 474 array_replace
- 475 array_replace_recursive
- 476 array_keys
- 477 array_values
- 478 array_count_values
- 479 array_reverse
- 480 array_reduce
- 481 array_pad
- 482 array_flip
- 483 array_change_key_case
- 484 array_rand
- 485 array_unique
- 486 array_intersect
- 487 array_intersect_key
- 488 array_intersect_ukey
- 489 array_uintersect
- 490 array_intersect_assoc
- 491 array_uintersect_assoc
- 492 array_intersect_uassoc
- 493 array_uintersect_uassoc
- 494 array_diff
- 495 array_diff_key
- 496 array_diff_ukey
- 497 array_udiff
- 498 array_diff_assoc
- 499 array_udiff_assoc
- 500 array_diff_uassoc
- 501 array_udiff_uassoc
- 502 array_sum
- 503 array_product
- 504 array_filter
- 505 array_map
- 506 array_chunk
- 507 array_combine
- 508 array_key_exists
- 509 pos
- 510 sizeof
- 511 key_exists
- 512 assert
- 513 assert_options
- 514 version_compare
- 515 ftok
- 516 str_rot13
- 517 stream_get_filters
- 518 stream_filter_register
- 519 stream_bucket_make_writeable
- 520 stream_bucket_prepend
- 521 stream_bucket_append
- 522 stream_bucket_new
- 523 output_add_rewrite_var
- 524 output_reset_rewrite_vars
- 525 sys_get_temp_dir
29. mysql
30. mysqli
31. mysqlnd
32. PDO
33. Phar
34. posix
35. pspell
36. Reflection
37. imap
38. SimpleXML
39. snmp
40. soap
41. sockets
42. exif
43. tidy
44. tokenizer
45. wddx
46. xml
47. xmlreader
48. xmlrpc
49. xmlwriter
50. xsl
51. zip
52. cgi-fcgi
53. pdo_sqlite
54. pdo_pgsql
55. pdo_mysql
56. pgsql
57. gnupg
58. imagick
59. mailparse
60. memcache
61. OAuth
62. phalcon
63. timezonedb
64. uploadprogress
65. yaml
66. mhash
67. ionCube Loader
68. SourceGuardian
69. Zend Guard Loader