There doesn't seem to be a way to store constants that have already been defined. This function, apc_define_constants(), does both things: (1) defines a constant, and (2) stores the constant in the cache. This is unfortunate, since it introduces the requirement to handle constant definitions differently when APC is not available.
(If this function had a "$do_not_define" parameter, or the like, that would give it more flexibility. I suppose filing a bug report would be a step in the right direction to getting this idea considered.)
PHP - Manual: apc_load_constants
2024-12-23
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
] ) : boolLoads a set of constants from the cache.
å‚æ•°
-
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
æˆåŠŸæ—¶è¿”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
å‚è§
- apc_define_constants() - Defines a set of constants for retrieval and mass-definition
- define() - 定义一个常é‡
- constant() - 返回一个常é‡çš„值
- Or the PHP constants reference
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User Contributed Notes 1 note
webmaster at thedigitalorchard dot ca ¶
9 years ago
官方地址：https://www.php.net/manual/en/function.apc-load-constants.php
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