php中json和serialize 性能比較測試

2024-05-04 21:49:48

字體：大中小

來源：轉載

供稿：網友

php中json是實時交換數據的一個常用的數據傳輸模式了,而serialize是把字符轉換成一個序列化字符串了,那么它們兩的性能那個會更好一些呢？對此小編整理了一些json和serialize 性能比較測試例子供各位學習參考.

測試1

1,操作元素較少,單個元素比較大,英文,3個元素操作1000次,代碼如下:

$data = array('hello','word');

$d = "helloword";

$d = str_repeat($d, 10000);

//for($i = 0;$i $data[] = $d;

//}

//var_dump($data);

$jsonen_sarttime = getmicrotime();

for($i=0;$i $json = json_encode($data);

}

echo "json長度:".strlen($json)."

n";

$jsonen_endtime = getmicrotime();

echo "jsonencode耗時:".($jsonen_endtime - $jsonen_sarttime)."

n";

$jsonde_starttime = getmicrotime();

for($i=0;$i $unjson = json_decode($json,true);

}

$jsonde_endtime = getmicrotime();

echo "jsondecode耗時:".($jsonde_endtime - $jsonde_starttime)."

n";

$seri1_starttime = getmicrotime();

for($i=0;$i $serialize = serialize($data);

}

echo "serialize長度:".strlen($serialize)."

n";

$seri1_endtime = getmicrotime();

echo "serialize序列化耗時:".($seri1_endtime - $seri1_starttime)."

n";

$seri2_starttime = getmicrotime();

for($i=0;$i $unserialize = unserialize($serialize);

}

$seri2_endtime = getmicrotime();

echo "serialize反序列化耗時:".($seri2_endtime - $seri2_starttime)."

n";

/**

*獲取時間記

* @return

*/

function getmicrotime(){

list($usec, $sec) = explode(" ",microtime());

return ((float)$usec + (float)$sec);

}

//output:

json長度:90019

jsonencode耗時:1.0974299907684

jsondecode耗時:1.6237480640411

serialize長度:90052

serialize序列化耗時:0.025779962539673

serialize反序列化耗時:0.029321193695068

可以看到json在做英文處理的時候,數組元素較少,體積要小于序列化的數據.處理效率低于序列化,將data 更改為如下代碼:

$data = array('hello','word');

$d = "你好";

$d = str_repeat($d, 10000);

//for($i = 0;$i $data[] = $d;

//output:

json長度:120019

jsonencode耗時:0.83260488510132

jsondecode耗時:2.2054090499878

serialize長度:60052

serialize序列化耗時:0.01835298538208

serialize反序列化耗時:0.01848292350769

可以看到 json在做文字處理的時候,體積較大,處理效率也略低于序列化.

3.將數據更改為如下代碼:

$data = array('hello','word');

$d = "你好";

for($i = 0;$i $data[] = $d;

}

//output:

json長度:150016

jsonencode耗時:2.1428198814392

jsondecode耗時:6.5845320224762

serialize長度:198939

serialize序列化耗時:2.8011980056763

serialize反序列化耗時:4.6967668533325

可以看到json體積略小于serialize.

4.將data修改為如下代碼:

$data = array('hello','word');

$d = "hello";

for($i = 0;$i $data[] = $d;

}

//output:

json長度:80016

jsonencode耗時:1.6437809467316

jsondecode耗時:4.5136170387268

serialize長度:188939

serialize序列化耗時:2.909558057785

serialize反序列化耗時:4.4678349494934

測試2

以一個包含1000000個元素的數組做為原始數據,分別以json,serialize,igbinary進行序列化和反向操作,代碼如下:

<?php

ini_set('memory_limit', '512m');

$array = array_fill(0, 1000000, rand(1, 9999));

$start = microtime(true);

$export = json_encode($array);

$end = microtime(true);

$duration = $end - $start;

print('JSON Encode: ' . $duration . PHP_EOL);

$start = microtime(true);

$import = json_decode($export);

$end = microtime(true);

$duration = $end - $start;

print('JSON Decode: ' . $duration . PHP_EOL);

$start = microtime(true);

$export = serialize($array);

$end = microtime(true);

$duration = $end - $start;

print('Serialize: ' . $duration . PHP_EOL);

$start = microtime(true);

$import = unserialize($export);

$end = microtime(true);

$duration = $end - $start;

print('Serialize: ' . $duration . PHP_EOL);

$start = microtime(true);

$export = igbinary_serialize($array);

$end = microtime(true);

$duration = $end - $start;

print('Igbinary Serialize: ' . $duration . PHP_EOL);

$start = microtime(true);

$import = igbinary_unserialize($export);

$end = microtime(true); //開源軟件:Vevb.com

$duration = $end - $start;

print('Igbinary Serialize: ' . $duration . PHP_EOL);

?>

//測試結果

JSON Encode: 0.084825992584229

JSON Decode: 0.34976410865784

Serialize: 0.38241410255432

Serialize: 7.7904229164124

Igbinary Serialize: 0.046916007995605

Igbinary Serialize: 0.23396801948547