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<?php /* * 远程图片获取到本地 */ function GrabImage($url){ if($url != ""){ //如果图片地址为空 $ext = strrchr($url,'.'); //判断图片的格式 if($ext != '.jpg' && $ext != '.gif' && $ext != '$png'){ return false;exit; } $filename_r = time().rand(10,9000).$ext; //给图片命名 $filename = 'getimg/'.$filename_r; ob_start(); //打开缓冲区 readfile($url); $imginfo = ob_get_contents(); //获得缓冲区的内容 ob_end_clean(); //清除并关闭缓冲区 $fp = fopen($filename,'a'); fwrite($fp,$imginfo); fclose($fp); }else{ return false; } } $start_time = microtime(true); GrabImage("http://img4.shougongke.com/Public/advance/53846840dafb4.jpg"); $end_time = microtime(true); $time = round($end_time-$start_time,3); echo '程序总共用时'.$time.'秒'; ?>