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PHP function to get remote file size_PHP tutorial

WBOY
Release： 2016-07-21 15:41:19
Original
918 people have browsed it

Copy code The code is as follows:

function getFileSize($url){
$url = parse_url ($url);
if($fp = @fsockopen($url['host'],empty($url['port'])?80:$url['port'],$error)){
fputs($fp,"GET ".(empty($url['path'])?'/':$url['path'])." HTTP/1.1rn");
fputs( $fp,"Host:$url[host]rnrn");
while(!feof($fp)){
$tmp = fgets($fp);
if(trim($tmp) == ''){
break;
}else if(preg_match('/Content-Length:(.*)/si',$tmp,$arr)){
return trim($arr [1]);
}
}
return null;
}else{
return null;
}
}
//Call method
echo getFileSize("http://www.jb51.net/images/logo.gif")
?>

After everyone runs it, the size should be 4445 bytes.

www.bkjia.comtruehttp: //www.bkjia.com/PHPjc/321208.htmlTechArticleCopy the code as follows: ?php function getFileSize($url){ $url = parse_url($url); if ($fp = @fsockopen($url['host'],empty($url['port'])?80:$url['port'],$error)){ fputs($fp,"GET ". ...
Related labels：
function p php url code function copy big document Obtain Remotely
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