get_defined_constants

Manual de PHP

(PHP 4 >= 4_1_0)

get_defined_constants __ Returns an associative array with the names of all the constants and their values

Description

array get_defined_constants ( void )

This function 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_

For example the line below:

<?php
print_r(get_defined_constants());
?>

will print a list like:

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
)