Valid URLs

[soft2050]

Check this code:

<?php
function addnvalidateurls($url){
// Modified By: Soft2050
if (!preg_match("@^[hf]tt?ps?://@", $url)) {
        $url = "http://" . $url;
}
$pattern = '/^(([\w]+:)?\/\/)?(([\d\w]|%[a-fA-f\d]{2,2})+(:([\d\w]|%[a-fA-f\d]{2,2})+)?@)?([\d\w][-\d\w]{0,253}[\d\w]\.)+[\w]{2,4}(:[\d]+)?(\/([-+_~.\d\w]|%[a-fA-f\d]{2,2})*)*(\?(&amp;?([-+_~.\d\w]|%[a-fA-f\d]{2,2})=?)*)?(#([-+_~.\d\w]|%[a-fA-f\d]{2,2})*)?$/';
return preg_match($pattern, $url);
} 

$result = addnvalidateurls('http://www.google.com');
echo '<script language="javascript">';
if ($result == 1)
echo "alert('Yes! The given url is validated')";
else {
echo "alert('No! the given url seems to be not working')";
}
echo '</script>';
?>

You can add this code before remote uploading the url

If Url is not valid, then you can break the function to end it