//获取远程图片的大小
$fp=fsockopen("www.baidu.com",80,$errno,$errstr,30);
if($fp){
//这里请求设置为HEAD就行了
$out="HEAD/img/baidu_sylogo1.gifHTTP/1.1\r\n";
$out.="Host:www.baidu.com\r\n";
$out.="Connection:Close\r\n\r\n";
fwrite($fp,$out);
while(!feof($fp)){
$header=fgets($fp);
if(stripos($header,'Content-Length')!==false){
$size=trim(substr($header,strpos($header,':')+1));
echo'ddd'.$size;
}
}
fclose($fp);
}else{
echo"jkj.$errstr($errno)";
}
//先转为时间戳
$begin=strtotime(‘2007-2-5′);
$end=strtotime(‘2007-3-6′);
echo($end-$begin)/(24*3600);
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