php 中序列化和json使用介绍

    public $int = 1;
    public $bool = TRUE;
    public $array = array(array(1), 2 => 'test', 'string');

    public function test($flag) {
        echo $flag, 'test function for Foo <br />';
    }

    public static function output($str) {
        echo $str, '<br />';
    }

    public static function compare_serialize_and_json($data) {
        $serialize_str =  serialize($data);
        self::output('序列化后的值:' . $serialize_str . "; length=" .
            strlen($serialize_str));

        $json_str = json_encode($data);
        self::output('JSON后的值:' . $json_str . "; length=" . strlen($json_str));
    }

}

$test_data = array('wwww' => 0, 'phppan' => 1, 'com' => 2);
//序列化数组

echo '数组：<br />';
Foo::compare_serialize_and_json($test_data);

$foo = new Foo();
echo '对象:<br />';
Foo::compare_serialize_and_json($foo);

echo 'serialize：<br />';
$start = xdebug_time_index();
for ($i = 0;  $i < $max_index; $i++) {
    $str = serialize($array);
}
$end = xdebug_time_index();
echo $end - $start, '<br />';

echo 'json：<br />';
$start = xdebug_time_index();
for ($i = 0;  $i < $max_index; $i++) {
    $str = json_encode($array);
}
$end = xdebug_time_index();
echo $end - $start, '<br />';
unset($array, $str);

$foo = new Foo();

echo '反序列化测试：<br />';
$foo->test(1);
$serialize_str = serialize($foo);
$obj = unserialize($serialize_str);
$obj->test(2);

$foo->test(1);
$json_str = json_encode($foo);
$obj = json_decode($json_str);
$obj->test(2);
die();

( ! ) Fatal error: Call to undefined method stdClass::test()