How to loop this?

tezman

I have a piece of code which I use to get a string between to tags, although this pulls just one instance I am now trying to do it so if there are more than one instance then I can pull all of them in an array...

function ExtractString($str, $start, $end)
{
$str_low = strtolower($str);
$pos_start = strpos($str_low, $start);
$pos_end = strpos($str_low, $end, ($pos_start + strlen($start)));
if ( ($pos_start !== false) && ($pos_end !== false) )
{
$pos1 = $pos_start + strlen($start);
$pos2 = $pos_end - $pos1;
return substr($str, $pos1, $pos2);
}
}

This is what I use, it works well for pulling one instance but now needing more than one it doesn't work.. am I able to put this into a loop?

    $match = ExtractString($html, '<h3 class="post-title">', '</h3>');

The above is what I'd use to extract the string in between <h3 class="post-title"> and </h3> but now there are 10 not 1...

Any help appreciated.. regards

TheDefender

In the PHP manual, you probably want to look at:
preg_match_all()

 function getTextBetweenTags($string)
 {
    $pattern = "I suck at regular expressions, but maybe someone who knows them can help here";
    preg_match_all($pattern, $string, $matches);
    return $matches[1];
 }


 $matched_array = getTextBetweenTags($html);

This should output a multi-dimensional array with the applicable information.
From there, just use array functions to parse out what you need.