ini_set Sets the value of a configuration option


ini_set

(PHP 4, PHP 5)

ini_setSets 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


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» interface_exists
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