PHP - Get Links From URL

From Global Programming Syntax

When creating a website or even a bot to scan the website, you may face a situation where you need to get all the links from a webpage well this function does just that. The function shown below will grab the info after any src= and href= tags and place them into an array. The array is then returned by the function. If your interested then try the script below:

function getlinks($url) {
    $data=file_get_contents($url);
    preg_match_all('/(href|src)\=(\"|\')[^\"\'\>]+/i',$data,$media);
    unset($data);
    $data=preg_replace('/(href|src)(\"|\'|\=\"|\=\')(.*)/i',"$3",$media[0]);
    return $data;
    }

Then to use it:

foreach (getlinks('http://www.google.com.au/') AS $link) {
echo $link.'<br>';
}