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

    {

        
$unserializeCallbackHandler ini_set('unserialize_callback_func'null);

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

        
ini_set('unserialize_callback_func'$unserializeCallbackHandler);
    {

        
$unserializeCallbackHandler ini_set('unserialize_callback_func'null);

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

        
ini_set('unserialize_callback_func'$unserializeCallbackHandler);



        
$this->assertDumpMatchesFormat(

            <<<
EOTXT