get_defined_constants
(PHP 4 >= 4.0.7, PHP 5)
get_defined_constants — Returns an associative array with the names of all the constants and their values
LeÃrás
Returns the names and values of all the constants currently defined. This includes those created by extensions as well as those created with the define() function.
Paraméterek
- categorize
-
May be passed, causing this function to return a multi-dimensional array with categories in the keys of the first dimension and constants and their values in the second dimension.
<?php
define("MY_CONSTANT", 1);
print_r(get_defined_constants(true));
?>A fenti példa valami ilyesmi kimenetet ad:
Array ( [internal] => 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 ) )
Note: The value of the categorize parameter is irrelevant, only its presence is considered.
Visszatérési értékek
Változások naplója
Változat | LeÃrás |
---|---|
5.0.0 | The categorize parameter was added. |
Példák
Example#1 get_defined_constants() Example
<?php
print_r(get_defined_constants());
?>
A fenti példa valami ilyesmi kimenetet ad:
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 )