getImage

function getImage($str) {
	if (strstr($str, "<img ")) {
		$chunks = explode("<img ", $str);
		foreach ($chunks as $chunk) {
			if (strstr($chunk, "src=")) {
				$img = preg_replace('|.*src=(.*?)>.*|is', '$1', strip_tags($chunk, '<img>'));
				$i = explode(" ", $img);
				$img_split = explode("/", $img);
				if (isset($img_split[1])) {
					$url = str_replace("'", "", str_replace("\"", "", $i[0]));
					if (!strstr($url, "/")) { unset($url); }
					else { break; }
				}
			}
		}
	}
	return isset($url) ? $url : false;
}