Supported Versions: PHP 4, PHP 5, PHP 7, PHP 8
Sets the value of a configuration option
Alias ini_alter
<?php ini_set(string $option, string|int|float|bool|null $value): string|false
<?php     public function testIncompleteClass()

    {

        $unserializeCallbackHandler = ini_set('unserialize_callback_func', null);

        $var = unserialize('O:8:"Foo\Buzz":0:{}');

        ini_set('unserialize_callback_func', $unserializeCallbackHandler);
<?php     {

        $unserializeCallbackHandler = ini_set('unserialize_callback_func', null);

        $var = unserialize('O:8:"Foo\Buzz":0:{}');

        ini_set('unserialize_callback_func', $unserializeCallbackHandler);



        $this->assertDumpMatchesFormat(

            <<<EOTXT