首页 / 网页编程 / PHP / 使用php测试硬盘写入速度示例

复制代码 代码如下:
<？php
set_time_limit（0）;
$str = str_pad（$str, 512, "0"）;
$file = fopen（"./temp","a+"）;
$i = 0;
$bytes = 1000000000;
$mygabyte = $bytes/1000000;
echo "test start. waiting ...";
$starttime = time（）;
while（$i < $bytes）{
    $i += fwrite（$file, $str）;
}

$endtime = time（）;
$usetime = $endtime - $starttime;
$write_xiaolv = $bytes/$usetime;
$myga_xiaolv = $mygabyte/$usetime;
echo "create 1GB file use time ".$usetime." seconds ";
echo "speed :".$write_xiaolv." byte/s ";
echo "speed :".$myga_xiaolv." m/s ";