网络测速 php代码

<?php
/*=====http://hi.csdn.net/yinyiniao=====*/
$fp=fopen("cs.txt","w");
for($i=0;$i<170400;$i++){
    fwrite($fp,"bandwidth");
}
fclose($fp);
/*=====http://hi.csdn.net/yinyiniao=====*/
?>  

<?php
/*=====http://hi.csdn.net/yinyiniao=====*/
function mymicrotime(){
    list($usec, $sec) = explode(" ",microtime());
    return ((float)$usec + (float)$sec);
}
$data=file_get_contents("cs.txt");
$start=mymicrotime();
$fsize=filesize("cs.txt")/1024;
//echo $fsize."kb<br>";
echo "<!--".$data."-->";  

$stop=mymicrotime();
$duration=($stop-$start);
//echo $duration."s<br>";
$speed=round($fsize/$duration,2);
echo "Your network speed:$speed KB/sec";  

?> 

转自：https://blog.csdn.net/yinyiniao/article/details/4935445