05-19-2016
Where would that info come from? A constant? A parameter?
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LEARN ABOUT PHP
apc_define_constants
APC_DEFINE_CONSTANTS(3) 1 APC_DEFINE_CONSTANTS(3)
apc_define_constants - Defines a set of constants for retrieval and mass-definition
SYNOPSIS
bool apc_define_constants (string $key, array $constants, [bool $case_sensitive = true])
DESCRIPTION
define(3) is notoriously slow. Since the main benefit of APC is to increase the performance of scripts/applications, this mechanism is pro-
vided to streamline the process of mass constant definition. However, this function does not perform as well as anticipated.
For a better-performing solution, try the hidef extension from PECL.
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
o $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(3).
o $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.
o $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(3) example
<?php
$constants = array(
'ONE' => 1,
'TWO' => 2,
'THREE' => 3,
);
apc_define_constants('numbers', $constants);
echo ONE, TWO, THREE;
?>
The above example will output:
123
SEE ALSO
apc_load_constants(3), define(3), constant(3), Or the PHP constants reference.
PHP Documentation Group APC_DEFINE_CONSTANTS(3)