Development Scripts

Check to see if a remote file exists (Rated 0)

Description:

This little code snippet shows how you can check to see if a remote file exists before trying to download it.

It send's a HEAD request first and see if you get 200 or 302, if so then file exists and you can download it.

You could put this into a function for ease of reuse.

Code starts here

<?PHP
// Posted by Alcapone of Devshed
// http://www.realxl.net/

$url='http://www.blah.net/movie.mpg';
$addy=parse_url($url);
$addy['port']=isset($addy['port'])?$addy['port']:80;
$sh=fsockopen($addy['host'],$addy['port']) or die('cant open socket');
fputs($sh,"HEAD {$addy['path']} HTTP/1.1\r\nHost: {$addy['host']}\r\n\r\n");
while($line=fgets($sh))
if(preg_match('/^Content-Length: (d+)/',$line,$m))
$size=$m[1];
echo isset($size)?"size of $url file is $size": 'no such file: '.$url;

?>

Submitted by Devscripts on 25-02-2003 0:09

Rate This Script

User Contributed Comments

On 05-08-2010 13:47 said:

qVbgmg fcgzamkhbsab, [url=http://ueykedgmhadi.com/]ueykedgmhadi[/url], [link=http://cvdnnnoblhrq.com/]cvdnnnoblhrq[/link], http://ppwkstwussxu.com/

On 11-08-2010 3:42 said:

eJbKzK djpguvnagryu, [url=http://lziemsxeuzev.com/]lziemsxeuzev[/url], [link=http://jtzdcdcrorgb.com/]jtzdcdcrorgb[/link], http://kgptfadsrhmq.com/