Extract a parameter from URL using a regex in PHP -

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i have number of links like:

<a href="http://url.com/?foo=bar&p=20" title="foo">foo</a> <a href="http://url2.com/?foo=bar&p=30" title="foo">foo</a>

i'm trying extract parameter p each href found. in case have end result array array (20, 30).

what regex this? thanks.

don’t try parse html regular expressions; use html parser php’s dom library or php simple html dom parser instead. parse url parse_url , query string parse_str.

here’s example:

$html = str_get_html('…'); $p = array(); foreach ($html->find('a[href]') $a) {     parse_str(parse_url($a->getattribute('href'), php_url_query), $args);     if (isset($args['p'])) $p[] = $args['p']; }

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