(PHP 4 >= 4.1.0, PHP 5, PHP 7)
get_defined_constants — 锟斤拷锟斤拷锟斤拷锟叫筹拷锟斤拷锟侥癸拷锟斤拷锟斤拷锟介，锟斤拷锟角筹拷锟斤拷锟斤拷锟斤拷值锟角筹拷锟斤拷值
$categorize = false
] ) : array锟斤拷锟截碉拷前锟斤拷锟斤拷锟窖讹拷锟斤拷某锟斤拷锟斤拷锟斤拷锟街碉拷锟� 锟斤拷锟斤拷锟� define() 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟侥ｏ拷也锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷展锟斤拷锟斤拷锟斤拷锟侥★拷
categorize锟矫此猴拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷维锟斤拷锟介，锟斤拷锟斤拷为锟斤拷一维锟侥硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟角碉拷值位锟节第讹拷维锟斤拷
<?php
define("MY_CONSTANT", 1);
print_r(get_defined_constants(true));
?>
锟斤拷锟斤拷锟斤拷锟教碉拷锟斤拷锟斤拷锟斤拷锟斤拷冢锟�
Array
(
[Core] => Array
(
[E_ERROR] => 1
[E_WARNING] => 2
[E_PARSE] => 4
[E_NOTICE] => 8
[E_CORE_ERROR] => 16
[E_CORE_WARNING] => 32
[E_COMPILE_ERROR] => 64
[E_COMPILE_WARNING] => 128
[E_USER_ERROR] => 256
[E_USER_WARNING] => 512
[E_USER_NOTICE] => 1024
[E_ALL] => 2047
[TRUE] => 1
)
[pcre] => Array
(
[PREG_PATTERN_ORDER] => 1
[PREG_SET_ORDER] => 2
[PREG_OFFSET_CAPTURE] => 256
[PREG_SPLIT_NO_EMPTY] => 1
[PREG_SPLIT_DELIM_CAPTURE] => 2
[PREG_SPLIT_OFFSET_CAPTURE] => 4
[PREG_GREP_INVERT] => 1
)
[user] => Array
(
[MY_CONSTANT] => 1
)
)
锟斤拷锟截碉拷锟斤拷锟斤拷为 锟斤拷锟斤拷锟斤拷 => 锟斤拷锟斤拷值锟斤拷也锟斤拷锟皆帮拷注锟斤拷锟斤拷锟斤拷锟斤拷锟秸癸拷锟斤拷锟斤拷锟斤拷锟斤拷椤�
| 锟芥本 | 说锟斤拷 |
|---|---|
| 5.3.1 | 锟斤拷锟斤拷锟斤拷锟斤拷 Windows锟斤拷锟节核筹拷锟斤拷锟斤拷锟洁到 Core锟斤拷之前锟斤拷 mhash锟斤拷 |
| 5.3.0 | 锟节核筹拷锟斤拷锟斤拷锟斤拷为 Core锟斤拷之前锟斤拷 internal锟斤拷锟斤拷 Windows 锟较ｏ拷锟节核筹拷锟斤拷锟斤拷锟洁到 mhash锟斤拷 |
| 5.2.11 |
categorize 锟斤拷锟斤拷锟斤拷锟节匡拷锟皆猴拷锟绞得憋拷锟斤拷锟斤拷
锟节达拷之前锟斤拷categorize 锟斤拷锟斤拷锟斤拷为 !is_null($categorize)锟斤拷锟斤拷锟斤拷锟轿何凤拷 NULL 锟斤拷值锟斤拷强锟狡筹拷锟斤拷锟斤拷锟洁。
|
Example #1 get_defined_constants() 锟斤拷锟斤拷
<?php
print_r(get_defined_constants());
?>
锟斤拷锟斤拷锟斤拷锟教碉拷锟斤拷锟斤拷锟斤拷锟斤拷冢锟�
Array
(
[E_ERROR] => 1
[E_WARNING] => 2
[E_PARSE] => 4
[E_NOTICE] => 8
[E_CORE_ERROR] => 16
[E_CORE_WARNING] => 32
[E_COMPILE_ERROR] => 64
[E_COMPILE_WARNING] => 128
[E_USER_ERROR] => 256
[E_USER_WARNING] => 512
[E_USER_NOTICE] => 1024
[E_ALL] => 2047
[TRUE] => 1
)