update : 2015.11.03
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Sets the value of a configuration option
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PHP Manual

ini_set

(PHP 4, PHP 5, PHP 7)

ini_set — Sets the value of a configuration option

설명

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.

인수

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.

반환값

Returns the old value on success, FALSE on failure.

예제

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');
?>

참고

PHP Options/Info 함수 목록
PHP Manual