ini_set
(PHP 4, PHP 5)
ini_set — Sets the value of a configuration option
说明
string ini_set ( string $varname , string $newvalue )Sets the value of the given configuration option. The configuration option will keep this new value during the script's execution, and will be restored at the script's ending.
参数
- varname
-
Not all the available options can be changed using ini_set(). There is a list of all available options in the appendix.
- newvalue
-
The new value for the option.
返回值
Returns the old value on success, FALSE on failure.
范例
Example #1 Setting an ini option
<?php
echo ini_get('display_errors');
if (!ini_get('display_errors')) {
ini_set('display_errors', 1);
}
echo ini_get('display_errors');
?>
参见
- get_cfg_var() - Gets the value of a PHP configuration option
- ini_get() - Gets the value of a configuration option
- ini_get_all() - Gets all configuration options
- ini_restore() - Restores the value of a configuration option
- How to change configuration settings
