php操作文件及下载图片脚本

<?php
set_time_limit(0);
$handle = fopen('article.txt','r');

for($i=0;$i<1;$i++)
{   
    $count = 0;
    while(!feof($handle)){
       $count ++;
        try{
            $line = trim(fgets($handle));
            if($line == '')
                continue;
            $temp = explode("|", $line);
            ob_start();
            readfile('http://img1.vip.com/upload/article/'.$temp[3]);
            $img = ob_get_contents();
            //var_dump($img);exit;
            ob_end_clean();
            $temp[2] = mb_substr($temp[2],0,7,'utf-8');
            $temp[2] = trim($temp[2]);
            $fp2=fopen('./pics/'.$temp[2].'.jpg', "a");
            $test = fwrite($fp2,$img);
            //var_dump($test);
            fclose($fp2); 
            sleep(0.05);
        } catch(Exception $e) {
                echo ('http://img1.vip.com/upload/article/'.$temp[3]);
        }
    }
    echo $count;
}