Check if URL exists

[theboss3@gmail.com]

(I know that's a horrible title; I couldn't think of anything better.)

Is there a simple way to check if a URL exists in PHP without using
Curl?

[Ewoud Dronkert]

Re: Check if URL exists

theboss3@gmail. com wrote:[color=blue]
> Is there a simple way to check if a URL exists in PHP without using
> Curl?[/color]

Try http://php.net/fsockopen or http://php.net/fopen

--
E. Dronkert

[theboss3@gmail.com]

Re: Check if URL exists

Thanks! I wasn't sure if fsockopen would be good enough or not, but I
think it will be. I just need to catch the error.

That being said, is there a way to retrieve headers from another page,
like getheaders('htt p://example.com/') ?

[Ewoud Dronkert]

Re: Check if URL exists

theboss3@gmail. com wrote:[color=blue]
> That being said, is there a way to retrieve headers from another page,
> like getheaders('htt p://example.com/') ?[/color]

Open a socket, stop reading after the header, close socket.

--
E. Dronkert

[theboss3@gmail.com]

Re: Check if URL exists

Is this (http://simon.incutio.com/archive/200...conditionalGet)
what you're talking about?

[VS]

Re: Check if URL exists

theboss3@gmail. com wrote:[color=blue]
> Thanks! I wasn't sure if fsockopen would be good enough or not, but I
> think it will be. I just need to catch the error.
>
> That being said, is there a way to retrieve headers from another page,
> like getheaders('htt p://example.com/') ?[/color]

I'm quite new to PHP, but I found and adpated this for getting the Time
Stamp of a URL, perhaps you can change it for what you need:

function filemtime_remot e($uri)
{
$uri = parse_url($uri) ;
$uri['port'] = isset($uri['port']) ? $uri['port'] : 80;

// TimeOut
$tout = 10;
$handle = @fsockopen($uri['host'], $uri['port'], $errno, $errstr,
$tout);
if(!$handle)
return 0;

fputs($handle," HEAD $uri[path] HTTP/1.1\r\nHost: $uri[host]\r\n\r\n");
$result = 0;
while(!feof($ha ndle))
{
$line = fgets($handle,1 024);
if(!trim($line) )
break;

$col = strpos($line,': ');
if($col !== false)
{
$header = trim(substr($li ne,0,$col));
$value = trim(substr($li ne,$col+1));
if(strtolower($ header) == 'last-modified')
{
$result = strtotime($valu e);
break;
}
}
}
fclose($handle) ;
return $result;
}

--
VS