apc_load_constants
(PECL apc >= 3.0.0)
apc_load_constants — Loads a set of constants from the cache
说明
apc_load_constants (
string
$key [,
bool $case_sensitive = TRUE ] ) :
bool
Loads a set of constants from the cache.
参数
-
key -
The name of the constant set (that was stored with apc_define_constants()) to be retrieved.
-
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
FALSEthe constants will be declared as case-insensitive symbols.
返回值
成功时返回 TRUE， 或者在失败时返回 FALSE。
范例
Example #1 apc_load_constants() example
<?php
$constants = array(
'ONE' => 1,
'TWO' => 2,
'THREE' => 3,
);
apc_define_constants('numbers', $constants);
apc_load_constants('numbers');
echo ONE, TWO, THREE;
?>
以上例程会输出：
123
参见
- apc_define_constants() - Defines a set of constants for retrieval and mass-definition
- define() - 定义一个常量
- constant() - 返回一个常量的值
- Or the PHP constants reference
