Regular Expression - Meta tags

[Anon]

I have the following regular expression that I need tweaked, but everything I do seems to be wrong. This expression extracts out all meta tags from text. i know there is a function for this in php, but that function only works if the tags are coming from a webpage.

function get_meta_tags($input){
	while($input = strstr($input,"<meta")) {
		$pos_close = strpos($input,">") + 1;
		$array[] = substr( $input , 0 , $pos_close);
		$input=substr( $input , $pos_close);
	}

	for($i=0; $i<count($array); $i++) {
	eregi('<meta +(name|httpd-equiv|http-equiv) *= *"?([^">]*)"? +content *= *"?([^">]*)[^>]*>',$array[$i],$r);
	$meta[strtolower($r[2])] = $r[3];
	}
	return $meta;
}

The above code works great if the meta tag is in the format of:
<meta name="keywords" content="whatever">
but it does not work if the format is:
<meta name=keywords content=whatever>
or if the format is;
<meta content="whatever" name="keywords">

Any and all help on this regular express would be greatly appreciated.

[Anon]

Might wanna try:

preg_match_all("/[a-z]+=[\" ][a-z0-9]+[\" ]/i", $str2, $matches);

for ($i=0; $i<count($matches[0]); $i++) {
list($name, $content) = explode('=', $matches[0][$i]);
echo "$name = ".trim($content);
}