PHPで定義されている関数一覧を表示する方法
プログラムを設置しようとしているサーバで、どんなPHP関数が使用できるかを確認したい場合、
get_defined_functions()
という関数を使用すればよいかもしれない。
《get_defined_functions()で取得したPHPの関数一覧を画面に出力させるプログラム例》
<?php
print_r(get_defined_functions());
?>
《上記プログラムの実行結果》
Array
(
[internal] => Array
(
[0] => zend_version
[1] => func_num_args
[2] => func_get_arg
[3] => func_get_args
[4] => strlen
[5] => strcmp
[6] => strncmp
[7] => strcasecmp
[8] => strncasecmp
[9] => each
[10] => error_reporting
[11] => define
[12] => defined
[13] => get_class
[14] => get_parent_class
[15] => method_exists
[16] => property_exists
[17] => class_exists
[18] => interface_exists
[19] => function_exists
[20] => get_included_files
[21] => get_required_files
[22] => is_subclass_of
[23] => is_a
[24] => get_class_vars
[25] => get_object_vars
[26] => get_class_methods
[27] => trigger_error
[28] => user_error
[29] => set_error_handler
[30] => restore_error_handler
[31] => set_exception_handler
[32] => restore_exception_handler
[33] => get_declared_classes
[34] => get_declared_interfaces
[35] => get_defined_functions
[36] => get_defined_vars
[37] => create_function
[38] => get_resource_type
[39] => get_loaded_extensions
[40] => extension_loaded
[41] => get_extension_funcs
[42] => get_defined_constants
[43] => debug_backtrace
[44] => debug_print_backtrace
[45] => bcadd
[46] => bcsub
[47] => bcmul
[48] => bcdiv
[49] => bcmod
[50] => bcpow
[51] => bcsqrt
[52] => bcscale
[53] => bccomp
[54] => bcpowmod
[55] => jdtogregorian
[56] => gregoriantojd
[57] => jdtojulian
[58] => juliantojd
[59] => jdtojewish
[60] => jewishtojd
[61] => jdtofrench
[62] => frenchtojd
[63] => jddayofweek
[64] => jdmonthname
[65] => easter_date
[66] => easter_days
[67] => unixtojd
[68] => jdtounix
[69] => cal_to_jd
[70] => cal_from_jd
[71] => cal_days_in_month
[72] => cal_info
[73] => variant_set
[74] => variant_add
[75] => variant_cat
[76] => variant_sub
[77] => variant_mul
[78] => variant_and
[79] => variant_div
[80] => variant_eqv
[81] => variant_idiv
[82] => variant_imp
[83] => variant_mod
[84] => variant_or
[85] => variant_pow
[86] => variant_xor
[87] => variant_abs
[88] => variant_fix
[89] => variant_int
[90] => variant_neg
[91] => variant_not
[92] => variant_round
[93] => variant_cmp
[94] => variant_date_to_timestamp
[95] => variant_date_from_timestamp
[96] => variant_get_type
[97] => variant_set_type
[98] => variant_cast
[99] => com_create_guid
[100] => com_event_sink
[101] => com_print_typeinfo
[102] => com_message_pump
[103] => com_load_typelib
[104] => com_get_active_object
[105] => ctype_alnum
[106] => ctype_alpha
[107] => ctype_cntrl
[108] => ctype_digit
[109] => ctype_lower
[110] => ctype_graph
[111] => ctype_print
[112] => ctype_punct
[113] => ctype_space
[114] => ctype_upper
[115] => ctype_xdigit
[116] => strtotime
[117] => date
[118] => idate
[119] => gmdate
[120] => mktime
[121] => gmmktime
[122] => checkdate
[123] => strftime
[124] => gmstrftime
[125] => time
[126] => localtime
[127] => getdate
[128] => date_create
[129] => date_parse
[130] => date_format
[131] => date_modify
[132] => date_timezone_get
[133] => date_timezone_set
[134] => date_offset_get
[135] => date_time_set
[136] => date_date_set
[137] => date_isodate_set
[138] => timezone_open
[139] => timezone_name_get
[140] => timezone_name_from_abbr
[141] => timezone_offset_get
[142] => timezone_transitions_get
[143] => timezone_identifiers_list
[144] => timezone_abbreviations_list
[145] => date_default_timezone_set
[146] => date_default_timezone_get
[147] => date_sunrise
[148] => date_sunset
[149] => date_sun_info
[150] => filter_input
[151] => filter_var
[152] => filter_input_array
[153] => filter_var_array
[154] => filter_list
[155] => filter_has_var
[156] => filter_id
[157] => ftp_connect
[158] => ftp_login
[159] => ftp_pwd
[160] => ftp_cdup
[161] => ftp_chdir
[162] => ftp_exec
[163] => ftp_raw
[164] => ftp_mkdir
[165] => ftp_rmdir
[166] => ftp_chmod
[167] => ftp_alloc
[168] => ftp_nlist
[169] => ftp_rawlist
[170] => ftp_systype
[171] => ftp_pasv
[172] => ftp_get
[173] => ftp_fget
[174] => ftp_put
[175] => ftp_fput
[176] => ftp_size
[177] => ftp_mdtm
[178] => ftp_rename
[179] => ftp_delete
[180] => ftp_site
[181] => ftp_close
[182] => ftp_set_option
[183] => ftp_get_option
[184] => ftp_nb_fget
[185] => ftp_nb_get
[186] => ftp_nb_continue
[187] => ftp_nb_put
[188] => ftp_nb_fput
[189] => ftp_quit
[190] => hash
[191] => hash_file
[192] => hash_hmac
[193] => hash_hmac_file
[194] => hash_init
[195] => hash_update
[196] => hash_update_stream
[197] => hash_update_file
[198] => hash_final
[199] => hash_algos
[200] => iconv
[201] => ob_iconv_handler
[202] => iconv_get_encoding
[203] => iconv_set_encoding
[204] => iconv_strlen
[205] => iconv_substr
[206] => iconv_strpos
[207] => iconv_strrpos
[208] => iconv_mime_encode
[209] => iconv_mime_decode
[210] => iconv_mime_decode_headers
[211] => json_encode
[212] => json_decode
[213] => odbc_autocommit
[214] => odbc_binmode
[215] => odbc_close
[216] => odbc_close_all
[217] => odbc_columns
[218] => odbc_commit
[219] => odbc_connect
[220] => odbc_cursor
[221] => odbc_data_source
[222] => odbc_execute
[223] => odbc_error
[224] => odbc_errormsg
[225] => odbc_exec
[226] => odbc_fetch_array
[227] => odbc_fetch_object
[228] => odbc_fetch_row
[229] => odbc_fetch_into
[230] => odbc_field_len
[231] => odbc_field_scale
[232] => odbc_field_name
[233] => odbc_field_type
[234] => odbc_field_num
[235] => odbc_free_result
[236] => odbc_gettypeinfo
[237] => odbc_longreadlen
[238] => odbc_next_result
[239] => odbc_num_fields
[240] => odbc_num_rows
[241] => odbc_pconnect
[242] => odbc_prepare
[243] => odbc_result
[244] => odbc_result_all
[245] => odbc_rollback
[246] => odbc_setoption
[247] => odbc_specialcolumns
[248] => odbc_statistics
[249] => odbc_tables
[250] => odbc_primarykeys
[251] => odbc_columnprivileges
[252] => odbc_tableprivileges
[253] => odbc_foreignkeys
[254] => odbc_procedures
[255] => odbc_procedurecolumns
[256] => odbc_do
[257] => odbc_field_precision
[258] => preg_match
[259] => preg_match_all
[260] => preg_replace
[261] => preg_replace_callback
[262] => preg_split
[263] => preg_quote
[264] => preg_grep
[265] => preg_last_error
[266] => session_name
[267] => session_module_name
[268] => session_save_path
[269] => session_id
[270] => session_regenerate_id
[271] => session_decode
[272] => session_register
[273] => session_unregister
[274] => session_is_registered
[275] => session_encode
[276] => session_start
[277] => session_destroy
[278] => session_unset
[279] => session_set_save_handler
[280] => session_cache_limiter
[281] => session_cache_expire
[282] => session_set_cookie_params
[283] => session_get_cookie_params
[284] => session_write_close
[285] => session_commit
[286] => spl_classes
[287] => spl_autoload
[288] => spl_autoload_extensions
[289] => spl_autoload_register
[290] => spl_autoload_unregister
[291] => spl_autoload_functions
[292] => spl_autoload_call
[293] => class_parents
[294] => class_implements
[295] => spl_object_hash
[296] => iterator_to_array
[297] => iterator_count
[298] => iterator_apply
[299] => constant
[300] => bin2hex
[301] => sleep
[302] => usleep
[303] => flush
[304] => wordwrap
[305] => htmlspecialchars
[306] => htmlentities
[307] => html_entity_decode
[308] => htmlspecialchars_decode
[309] => get_html_translation_table
[310] => sha1
[311] => sha1_file
[312] => md5
[313] => md5_file
[314] => crc32
[315] => iptcparse
[316] => iptcembed
[317] => getimagesize
[318] => image_type_to_mime_type
[319] => image_type_to_extension
[320] => phpinfo
[321] => phpversion
[322] => phpcredits
[323] => php_logo_guid
[324] => php_real_logo_guid
[325] => php_egg_logo_guid
[326] => zend_logo_guid
[327] => php_sapi_name
[328] => php_uname
[329] => php_ini_scanned_files
[330] => strnatcmp
[331] => strnatcasecmp
[332] => substr_count
[333] => strspn
[334] => strcspn
[335] => strtok
[336] => strtoupper
[337] => strtolower
[338] => strpos
[339] => stripos
[340] => strrpos
[341] => strripos
[342] => strrev
[343] => hebrev
[344] => hebrevc
[345] => nl2br
[346] => basename
[347] => dirname
[348] => pathinfo
[349] => stripslashes
[350] => stripcslashes
[351] => strstr
[352] => stristr
[353] => strrchr
[354] => str_shuffle
[355] => str_word_count
[356] => str_split
[357] => strpbrk
[358] => substr_compare
[359] => strcoll
[360] => substr
[361] => substr_replace
[362] => quotemeta
[363] => ucfirst
[364] => ucwords
[365] => strtr
[366] => addslashes
[367] => addcslashes
[368] => rtrim
[369] => str_replace
[370] => str_ireplace
[371] => str_repeat
[372] => count_chars
[373] => chunk_split
[374] => trim
[375] => ltrim
[376] => strip_tags
[377] => similar_text
[378] => explode
[379] => implode
[380] => setlocale
[381] => localeconv
[382] => soundex
[383] => levenshtein
[384] => chr
[385] => ord
[386] => parse_str
[387] => str_pad
[388] => chop
[389] => strchr
[390] => sprintf
[391] => printf
[392] => vprintf
[393] => vsprintf
[394] => fprintf
[395] => vfprintf
[396] => sscanf
[397] => fscanf
[398] => parse_url
[399] => urlencode
[400] => urldecode
[401] => rawurlencode
[402] => rawurldecode
[403] => http_build_query
[404] => unlink
[405] => exec
[406] => system
[407] => escapeshellcmd
[408] => escapeshellarg
[409] => passthru
[410] => shell_exec
[411] => proc_open
[412] => proc_close
[413] => proc_terminate
[414] => proc_get_status
[415] => rand
[416] => srand
[417] => getrandmax
[418] => mt_rand
[419] => mt_srand
[420] => mt_getrandmax
[421] => getservbyname
[422] => getservbyport
[423] => getprotobyname
[424] => getprotobynumber
[425] => getmyuid
[426] => getmygid
[427] => getmypid
[428] => getmyinode
[429] => getlastmod
[430] => base64_decode
[431] => base64_encode
[432] => convert_uuencode
[433] => convert_uudecode
[434] => abs
[435] => ceil
[436] => floor
[437] => round
[438] => sin
[439] => cos
[440] => tan
[441] => asin
[442] => acos
[443] => atan
[444] => atan2
[445] => sinh
[446] => cosh
[447] => tanh
[448] => pi
[449] => is_finite
[450] => is_nan
[451] => is_infinite
[452] => pow
[453] => exp
[454] => log
[455] => log10
[456] => sqrt
[457] => hypot
[458] => deg2rad
[459] => rad2deg
[460] => bindec
[461] => hexdec
[462] => octdec
[463] => decbin
[464] => decoct
[465] => dechex
[466] => base_convert
[467] => number_format
[468] => fmod
[469] => ip2long
[470] => long2ip
[471] => getenv
[472] => putenv
[473] => microtime
[474] => gettimeofday
[475] => uniqid
[476] => quoted_printable_decode
[477] => convert_cyr_string
[478] => get_current_user
[479] => set_time_limit
[480] => get_cfg_var
[481] => magic_quotes_runtime
[482] => set_magic_quotes_runtime
[483] => get_magic_quotes_gpc
[484] => get_magic_quotes_runtime
[485] => import_request_variables
[486] => error_log
[487] => error_get_last
[488] => call_user_func
[489] => call_user_func_array
[490] => call_user_method
[491] => call_user_method_array
[492] => serialize
[493] => unserialize
[494] => var_dump
[495] => var_export
[496] => debug_zval_dump
[497] => print_r
[498] => register_shutdown_function
[499] => register_tick_function
[500] => unregister_tick_function
[501] => highlight_file
[502] => show_source
[503] => highlight_string
[504] => php_strip_whitespace
[505] => ini_get
[506] => ini_get_all
[507] => ini_set
[508] => ini_alter
[509] => ini_restore
[510] => get_include_path
[511] => set_include_path
[512] => restore_include_path
[513] => setcookie
[514] => setrawcookie
[515] => header
[516] => headers_sent
[517] => headers_list
[518] => connection_aborted
[519] => connection_status
[520] => ignore_user_abort
[521] => parse_ini_file
[522] => is_uploaded_file
[523] => move_uploaded_file
[524] => gethostbyaddr
[525] => gethostbyname
[526] => gethostbynamel
[527] => intval
[528] => floatval
[529] => doubleval
[530] => strval
[531] => gettype
[532] => settype
[533] => is_null
[534] => is_resource
[535] => is_bool
[536] => is_long
[537] => is_float
[538] => is_int
[539] => is_integer
[540] => is_double
[541] => is_real
[542] => is_numeric
[543] => is_string
[544] => is_array
[545] => is_object
[546] => is_scalar
[547] => is_callable
[548] => ereg
[549] => ereg_replace
[550] => eregi
[551] => eregi_replace
[552] => split
[553] => spliti
[554] => join
[555] => sql_regcase
[556] => dl
[557] => pclose
[558] => popen
[559] => readfile
[560] => rewind
[561] => rmdir
[562] => umask
[563] => fclose
[564] => feof
[565] => fgetc
[566] => fgets
[567] => fgetss
[568] => fread
[569] => fopen
[570] => fpassthru
[571] => ftruncate
[572] => fstat
[573] => fseek
[574] => ftell
[575] => fflush
[576] => fwrite
[577] => fputs
[578] => mkdir
[579] => rename
[580] => copy
[581] => tempnam
[582] => tmpfile
[583] => file
[584] => file_get_contents
[585] => file_put_contents
[586] => stream_select
[587] => stream_context_create
[588] => stream_context_set_params
[589] => stream_context_set_option
[590] => stream_context_get_options
[591] => stream_context_get_default
[592] => stream_filter_prepend
[593] => stream_filter_append
[594] => stream_filter_remove
[595] => stream_socket_client
[596] => stream_socket_server
[597] => stream_socket_accept
[598] => stream_socket_get_name
[599] => stream_socket_recvfrom
[600] => stream_socket_sendto
[601] => stream_socket_enable_crypto
[602] => stream_copy_to_stream
[603] => stream_get_contents
[604] => fgetcsv
[605] => fputcsv
[606] => flock
[607] => get_meta_tags
[608] => stream_set_write_buffer
[609] => set_file_buffer
[610] => set_socket_blocking
[611] => stream_set_blocking
[612] => socket_set_blocking
[613] => stream_get_meta_data
[614] => stream_get_line
[615] => stream_wrapper_register
[616] => stream_register_wrapper
[617] => stream_wrapper_unregister
[618] => stream_wrapper_restore
[619] => stream_get_wrappers
[620] => stream_get_transports
[621] => get_headers
[622] => stream_set_timeout
[623] => socket_set_timeout
[624] => socket_get_status
[625] => realpath
[626] => fsockopen
[627] => pfsockopen
[628] => pack
[629] => unpack
[630] => get_browser
[631] => crypt
[632] => opendir
[633] => closedir
[634] => chdir
[635] => getcwd
[636] => rewinddir
[637] => readdir
[638] => dir
[639] => scandir
[640] => glob
[641] => fileatime
[642] => filectime
[643] => filegroup
[644] => fileinode
[645] => filemtime
[646] => fileowner
[647] => fileperms
[648] => filesize
[649] => filetype
[650] => file_exists
[651] => is_writable
[652] => is_writeable
[653] => is_readable
[654] => is_executable
[655] => is_file
[656] => is_dir
[657] => is_link
[658] => stat
[659] => lstat
[660] => chown
[661] => chgrp
[662] => chmod
[663] => touch
[664] => clearstatcache
[665] => disk_total_space
[666] => disk_free_space
[667] => diskfreespace
[668] => mail
[669] => ezmlm_hash
[670] => openlog
[671] => syslog
[672] => closelog
[673] => define_syslog_variables
[674] => lcg_value
[675] => metaphone
[676] => ob_start
[677] => ob_flush
[678] => ob_clean
[679] => ob_end_flush
[680] => ob_end_clean
[681] => ob_get_flush
[682] => ob_get_clean
[683] => ob_get_length
[684] => ob_get_level
[685] => ob_get_status
[686] => ob_get_contents
[687] => ob_implicit_flush
[688] => ob_list_handlers
[689] => ksort
[690] => krsort
[691] => natsort
[692] => natcasesort
[693] => asort
[694] => arsort
[695] => sort
[696] => rsort
[697] => usort
[698] => uasort
[699] => uksort
[700] => shuffle
[701] => array_walk
[702] => array_walk_recursive
[703] => count
[704] => end
[705] => prev
[706] => next
[707] => reset
[708] => current
[709] => key
[710] => min
[711] => max
[712] => in_array
[713] => array_search
[714] => extract
[715] => compact
[716] => array_fill
[717] => array_fill_keys
[718] => range
[719] => array_multisort
[720] => array_push
[721] => array_pop
[722] => array_shift
[723] => array_unshift
[724] => array_splice
[725] => array_slice
[726] => array_merge
[727] => array_merge_recursive
[728] => array_keys
[729] => array_values
[730] => array_count_values
[731] => array_reverse
[732] => array_reduce
[733] => array_pad
[734] => array_flip
[735] => array_change_key_case
[736] => array_rand
[737] => array_unique
[738] => array_intersect
[739] => array_intersect_key
[740] => array_intersect_ukey
[741] => array_uintersect
[742] => array_intersect_assoc
[743] => array_uintersect_assoc
[744] => array_intersect_uassoc
[745] => array_uintersect_uassoc
[746] => array_diff
[747] => array_diff_key
[748] => array_diff_ukey
[749] => array_udiff
[750] => array_diff_assoc
[751] => array_udiff_assoc
[752] => array_diff_uassoc
[753] => array_udiff_uassoc
[754] => array_sum
[755] => array_product
[756] => array_filter
[757] => array_map
[758] => array_chunk
[759] => array_combine
[760] => array_key_exists
[761] => pos
[762] => sizeof
[763] => key_exists
[764] => assert
[765] => assert_options
[766] => version_compare
[767] => str_rot13
[768] => stream_get_filters
[769] => stream_filter_register
[770] => stream_bucket_make_writeable
[771] => stream_bucket_prepend
[772] => stream_bucket_append
[773] => stream_bucket_new
[774] => output_add_rewrite_var
[775] => output_reset_rewrite_vars
[776] => token_get_all
[777] => token_name
[778] => readgzfile
[779] => gzrewind
[780] => gzclose
[781] => gzeof
[782] => gzgetc
[783] => gzgets
[784] => gzgetss
[785] => gzread
[786] => gzopen
[787] => gzpassthru
[788] => gzseek
[789] => gztell
[790] => gzwrite
[791] => gzputs
[792] => gzfile
[793] => gzcompress
[794] => gzuncompress
[795] => gzdeflate
[796] => gzinflate
[797] => gzencode
[798] => ob_gzhandler
[799] => zlib_get_coding_type
[800] => libxml_set_streams_context
[801] => libxml_use_internal_errors
[802] => libxml_get_last_error
[803] => libxml_clear_errors
[804] => libxml_get_errors
[805] => dom_import_simplexml
[806] => simplexml_load_file
[807] => simplexml_load_string
[808] => simplexml_import_dom
[809] => wddx_serialize_value
[810] => wddx_serialize_vars
[811] => wddx_packet_start
[812] => wddx_packet_end
[813] => wddx_add_vars
[814] => wddx_deserialize
[815] => xml_parser_create
[816] => xml_parser_create_ns
[817] => xml_set_object
[818] => xml_set_element_handler
[819] => xml_set_character_data_handler
[820] => xml_set_processing_instruction_handler
[821] => xml_set_default_handler
[822] => xml_set_unparsed_entity_decl_handler
[823] => xml_set_notation_decl_handler
[824] => xml_set_external_entity_ref_handler
[825] => xml_set_start_namespace_decl_handler
[826] => xml_set_end_namespace_decl_handler
[827] => xml_parse
[828] => xml_parse_into_struct
[829] => xml_get_error_code
[830] => xml_error_string
[831] => xml_get_current_line_number
[832] => xml_get_current_column_number
[833] => xml_get_current_byte_index
[834] => xml_parser_free
[835] => xml_parser_set_option
[836] => xml_parser_get_option
[837] => utf8_encode
[838] => utf8_decode
[839] => xmlwriter_open_uri
[840] => xmlwriter_open_memory
[841] => xmlwriter_set_indent
[842] => xmlwriter_set_indent_string
[843] => xmlwriter_start_comment
[844] => xmlwriter_end_comment
[845] => xmlwriter_start_attribute
[846] => xmlwriter_end_attribute
[847] => xmlwriter_write_attribute
[848] => xmlwriter_start_attribute_ns
[849] => xmlwriter_write_attribute_ns
[850] => xmlwriter_start_element
[851] => xmlwriter_end_element
[852] => xmlwriter_full_end_element
[853] => xmlwriter_start_element_ns
[854] => xmlwriter_write_element
[855] => xmlwriter_write_element_ns
[856] => xmlwriter_start_pi
[857] => xmlwriter_end_pi
[858] => xmlwriter_write_pi
[859] => xmlwriter_start_cdata
[860] => xmlwriter_end_cdata
[861] => xmlwriter_write_cdata
[862] => xmlwriter_text
[863] => xmlwriter_write_raw
[864] => xmlwriter_start_document
[865] => xmlwriter_end_document
[866] => xmlwriter_write_comment
[867] => xmlwriter_start_dtd
[868] => xmlwriter_end_dtd
[869] => xmlwriter_write_dtd
[870] => xmlwriter_start_dtd_element
[871] => xmlwriter_end_dtd_element
[872] => xmlwriter_write_dtd_element
[873] => xmlwriter_start_dtd_attlist
[874] => xmlwriter_end_dtd_attlist
[875] => xmlwriter_write_dtd_attlist
[876] => xmlwriter_output_memory
[877] => xmlwriter_flush
[878] => apache_lookup_uri
[879] => virtual
[880] => apache_request_headers
[881] => apache_response_headers
[882] => apache_setenv
[883] => apache_getenv
[884] => apache_note
[885] => apache_get_version
[886] => apache_get_modules
[887] => getallheaders
[888] => mb_convert_case
[889] => mb_strtoupper
[890] => mb_strtolower
[891] => mb_language
[892] => mb_internal_encoding
[893] => mb_http_input
[894] => mb_http_output
[895] => mb_detect_order
[896] => mb_substitute_character
[897] => mb_parse_str
[898] => mb_output_handler
[899] => mb_preferred_mime_name
[900] => mb_strlen
[901] => mb_strpos
[902] => mb_strrpos
[903] => mb_stripos
[904] => mb_strripos
[905] => mb_strstr
[906] => mb_strrchr
[907] => mb_stristr
[908] => mb_strrichr
[909] => mb_substr_count
[910] => mb_substr
[911] => mb_strcut
[912] => mb_strwidth
[913] => mb_strimwidth
[914] => mb_convert_encoding
[915] => mb_detect_encoding
[916] => mb_list_encodings
[917] => mb_convert_kana
[918] => mb_encode_mimeheader
[919] => mb_decode_mimeheader
[920] => mb_convert_variables
[921] => mb_encode_numericentity
[922] => mb_decode_numericentity
[923] => mb_send_mail
[924] => mb_get_info
[925] => mb_check_encoding
[926] => mb_regex_encoding
[927] => mb_regex_set_options
[928] => mb_ereg
[929] => mb_eregi
[930] => mb_ereg_replace
[931] => mb_eregi_replace
[932] => mb_split
[933] => mb_ereg_match
[934] => mb_ereg_search
[935] => mb_ereg_search_pos
[936] => mb_ereg_search_regs
[937] => mb_ereg_search_init
[938] => mb_ereg_search_getregs
[939] => mb_ereg_search_getpos
[940] => mb_ereg_search_setpos
[941] => mbregex_encoding
[942] => mbereg
[943] => mberegi
[944] => mbereg_replace
[945] => mberegi_replace
[946] => mbsplit
[947] => mbereg_match
[948] => mbereg_search
[949] => mbereg_search_pos
[950] => mbereg_search_regs
[951] => mbereg_search_init
[952] => mbereg_search_getregs
[953] => mbereg_search_getpos
[954] => mbereg_search_setpos
[955] => gd_info
[956] => imagearc
[957] => imageellipse
[958] => imagechar
[959] => imagecharup
[960] => imagecolorat
[961] => imagecolorallocate
[962] => imagepalettecopy
[963] => imagecreatefromstring
[964] => imagecolorclosest
[965] => imagecolordeallocate
[966] => imagecolorresolve
[967] => imagecolorexact
[968] => imagecolorset
[969] => imagecolortransparent
[970] => imagecolorstotal
[971] => imagecolorsforindex
[972] => imagecopy
[973] => imagecopymerge
[974] => imagecopymergegray
[975] => imagecopyresized
[976] => imagecreate
[977] => imagecreatetruecolor
[978] => imageistruecolor
[979] => imagetruecolortopalette
[980] => imagesetthickness
[981] => imagefilledarc
[982] => imagefilledellipse
[983] => imagealphablending
[984] => imagesavealpha
[985] => imagecolorallocatealpha
[986] => imagecolorresolvealpha
[987] => imagecolorclosestalpha
[988] => imagecolorexactalpha
[989] => imagecopyresampled
[990] => imagerotate
[991] => imageantialias
[992] => imagesettile
[993] => imagesetbrush
[994] => imagesetstyle
[995] => imagecreatefrompng
[996] => imagecreatefromgif
[997] => imagecreatefromjpeg
[998] => imagecreatefromwbmp
[999] => imagecreatefromxbm
[1000] => imagecreatefromgd
[1001] => imagecreatefromgd2
[1002] => imagecreatefromgd2part
[1003] => imagepng
[1004] => imagegif
[1005] => imagejpeg
[1006] => imagewbmp
[1007] => imagegd
[1008] => imagegd2
[1009] => imagedestroy
[1010] => imagegammacorrect
[1011] => imagefill
[1012] => imagefilledpolygon
[1013] => imagefilledrectangle
[1014] => imagefilltoborder
[1015] => imagefontwidth
[1016] => imagefontheight
[1017] => imageinterlace
[1018] => imageline
[1019] => imageloadfont
[1020] => imagepolygon
[1021] => imagerectangle
[1022] => imagesetpixel
[1023] => imagestring
[1024] => imagestringup
[1025] => imagesx
[1026] => imagesy
[1027] => imagedashedline
[1028] => imagettfbbox
[1029] => imagettftext
[1030] => imageftbbox
[1031] => imagefttext
[1032] => imagepsloadfont
[1033] => imagepsfreefont
[1034] => imagepsencodefont
[1035] => imagepsextendfont
[1036] => imagepsslantfont
[1037] => imagepstext
[1038] => imagepsbbox
[1039] => imagetypes
[1040] => jpeg2wbmp
[1041] => png2wbmp
[1042] => image2wbmp
[1043] => imagelayereffect
[1044] => imagecolormatch
[1045] => imagexbm
[1046] => imagefilter
[1047] => imageconvolution
)
[user] => Array
(
)
)
上記は、私の自宅のデスクトップPC（Windows XP）にインストールしているPHP Version 5.2.0での実行結果。
PHPで定義されている関数が1047個もあることに驚いた。
知らない関数がいっぱい...。