PHP scan file, display matches?

I don't know if this is possible and what sort of things I need to look into, and was hoping one of you could help me out.

Basically I have a URL, for instance http://www.mysite.com/yeah.php

and on this page, is a list of URLS/page text. I need to setup something so it will go through the source of the page and grab all the URL's containing a term such as 'pageno='

Then grab all these URL's and then spit them out in a list?

What sort of things would I need to look at on php.net to accomplish this?

Cheers in advance.

 

File handling functions or cURL. This usually does the job:

$html = file_get_contents('http://site.com/page');

PHP:

As for getting the URLs from the HTML that the above function returns, look up regex pattern matching.
Something like:

preg_match_all("~http://site.com/\?pageno=\d+~", $html, $m);

PHP:

 

If I do that, then say "echo $m;" the file just says "Array"

Should It just display every result it finds?

 

Ok I worked that part out,

print_r($m);

I'll see how i go from here. Thanks a tonne mate! I will post when I have my project completed

 

Gah,

How do I get rid of all the Array ( [0] => Array ( [0] => stuff, and just echo each results on its own with a <br />

after it?

 

how about this one

$html = file_get_contents('http://site.com/page');
$lines = explode("\n", $html);
foreach ($lines as $line)
    if (strpos($line, 'pageno=') !== FALSE)
        echo $line.'<br/>';

PHP:

 

Thanks! That's like perfect, but I see it echos all the other HTML on the URL line of the page.

Is there anyway to strip the URL's only, and display them out of the $lines

 

<?
function extract_urls_from_html( $location, $inurl )
{
	$returns = array( );
	
	if( ( $handle = fopen( $location, 'r' ) ) )
	{
		while( !feof( $handle ) )
		{
			if( preg_match( $inurl, fgets( $handle, 4096 ), $matches ) )
			{
				$returns[ ]	= $matches[1];
			}
			
		}	
		fclose( $handle );
	}
	return $returns[1] ? $returns : false ;
}

$urls = extract_urls_from_html( "http://yoursite.com/yeah.php", '~href="(.*?pageno=.*?)"~' );

if( is_array( $urls ) )
{
	print( implode("<br />\n", $urls ) );
}
?>

PHP:

Something like that...... gimme a link to the page if the regex doesn't work, regex is a pretty specific thing to use, it's not normally good enough just to say a link like "pageno=" you would have to give the exact structure of the link should you not want the function to return anything else at all.