PHP中json_encode、json_decode与serialize、unserialize
json_encode和json_decode的效率并没有比serialize和unserialize的效率高,在反序列化的时候性能相差两倍左右,PHP 5.3执行效率比PHP 5.2略有提升,代码如下:
- <?php
- $target = array (
- 'name' => '全能头盔',
- 'quality' => 'Blue',
- 'ti_id' => 21302,
- 'is_bind' => 1,
- 'demand_conditions' =>
- array (
- 'HeroLevel' => 1,
- ),
- 'quality_attr_sign' =>
- array (
- 'HeroStrength' => 8,
- 'HeroAgility' => 8,
- 'HeroIntelligence' => 8,
- ),
- );
- $json = json_encode($target);
- $seri = serialize($target);
- echo "json : " . strlen($json) . " ";
- echo "serialize : " . strlen($seri) . " ";
- $stime = microtime(true);
- for ($i = 0; $i < 10000; $i ++)
- {
- json_encode($target);
- }
- $etime = microtime(true);
- echo "json_encode : " . ($etime - $stime) . " ";
-
- $stime = microtime(true);
- for ($i = 0; $i < 10000; $i ++)
- {
- json_decode($json);
- }
- $etime = microtime(true);
- echo "json_decode : " . ($etime - $stime) . " ";
-
- $stime = microtime(true);
- for ($i = 0; $i < 10000; $i ++)
- {
- serialize($target);
- }
- $etime = microtime(true);
- echo "serialize : " . ($etime - $stime) . " ";
-
- $stime = microtime(true);
- for ($i = 0; $i < 10000; $i ++)
- {
- unserialize($seri);
- }
- $etime = microtime(true);
- echo "unserialize : " . ($etime - $stime) . " ";
- echo 'DONE.';
- ?>