|
|
|
apc_define_constants (PECL) apc_define_constants --
Defines a set of constants for later retrieval and mass-definition
Descriptionbool 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).
Parameters
- 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.
Return Values
Returns TRUE on success or FALSE on failure.
Examples
Example 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;
?> |
The above example will output: |
|
|
|
apc_clear_cache
