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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

Описание

array get_defined_constants ([ mixed $categorize ] )

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.

Список параметров

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));
?>

Результатом выполнения данного примера будет что-то подобное:

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
        )

)

        

Замечание: The value of the categorize parameter is irrelevant, only its presence is considered.

Возвращаемые значения

Список изменений

Примеры

Пример #1 get_defined_constants() Example

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

Результатом выполнения данного примера будет что-то подобное:

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
)

    

Смотрите также

• defined()
• get_loaded_extensions()
• get_defined_functions()
• get_defined_vars()

get_current_user

get_extension_funcs

PHP Options/Info Функции

PHP Manual