apc_define_constants

Manuel PHP
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Description

mixed apc_define_constants ( string key, array constants [, bool case_sensitive] )

define() is notoriously slow. Since the main benefit of APC is to increase the performance of scripts/applications, this mechanism is provided to streamline the process of mass constant definition.

Note : To remove a set of stored constants (without clearing the entire cache), an empty array may be passed as the constants parameter, effectively clearing the stored value(s).

Liste de paramètres

key: The key serves as the name of the constant set being stored. This key is used to retrieve the stored constants in apc_load_constants().
constants: An associative array of constant_name => value pairs. The constant_name must follow the normal constant naming rules. value must evaluate to a scalar value.
case_sensitive: The default behaviour for constants is to be declared case-sensitive; i.e. CONSTANT and Constant represent different values. If this parameter evaluates to FALSE the constants will be declared as case-insensitive symbols.

Valeurs de retour

Cette fonction retourne TRUE en cas de succès, FALSE en cas d'échec.

Exemples

Exemple 1. apc_define_constants() example
<?php $constants = array( 'ONE' => 1, 'TWO' => 2, 'THREE' => 3, ); apc_define_constants('numbers', $constants); apc_load_constants('numbers'); echo ONE, TWO, THREE; ?>
L'exemple ci-dessus va afficher :
123

Voir aussi

apc_load_constants()

define()

constant()

Or the PHP constants reference

Précédent	Sommaire	Suivant
apc_clear_cache	Niveau supérieur	apc_delete