详解php中implode explode serialize json msgpack性能对比

<?php
$arr = array(
    'content1' => '一二三四五六七八九十',
    'content2' => '一二三四五六七八九十',
    'content3' => '一二三四五六七八九十'
);
echo file_put_contents('implode.txt', implode(',',$arr), true).'<br>';
echo file_put_contents('serialize.txt', serialize($arr), true).'<br>';
echo file_put_contents('json.txt', json_encode($arr), true).'<br>';
echo file_put_contents('msgpack.txt', msgpack_pack($arr), true);
?>

$arr = array('一','二','三','四','五','六','七','八','九','十');

<?php
$arr = array(
    'content1' => '一二三四五六七八九十',
    'content2' => '一二三四五六七八九十',
    'content3' => '一二三四五六七八九十'
);
 
$start = microtime(true);
$i = 1000000;
while($i>0){
    // 分别测试运行时间及内存使用情况
    $tmp = implode(',',$arr);
    // $tmp = serialize($arr);
    // $tmp = json_encode($arr);
    // $tmp = msgpack_pack($arr);
    $i--;
}
$end = microtime(true);
echo 'run time:'.($end-$start).'s<br>';
echo 'memory usage:'.(memory_get_usage()/1024).'KB';
?>

<?php
$data = file_get_contents('implode.txt');
//$data = file_get_contents('serialize.txt');
//$data = file_get_contents('json.txt');
//$data = file_get_contents('msgpack.txt');
 
$start = microtime(true);
$i = 1000000;
while($i>0){
    $tmp = explode(',',$data);
    //$tmp = unserialize($data);
    //$tmp = json_decode($data, true);
    //$tmp = msgpack_unpack($data);
    $i--;
}
$end = microtime(true);
echo 'run time:'.($end-$start).'s<br>';
echo 'memory usage:'.(memory_get_usage()/1024).'KB';
?>