geoff-maddock/Regex Email and URL to link

## Regex Email and URL to link
//show URLs as links
$part = preg_replace('/(?:https?:\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/i', "<a href='$0'>$0</a>", $part);
//show email addresses as links
$part = preg_replace("/[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*/i", "<a href='mailto:$0'>$0</a>", $part);
	//show URLs as links
	$part = preg_replace('/(?:https?:\/\/[-A-Z0-9+&@#\/%?=~_\|!:,.;]*[-A-Z0-9+&@#\/%=~_\|])/i', "<a href='$0'>$0</a>", $part);
	//show email addresses as links
	$part = preg_replace("/[a-zA-Z0-9.!#$%&'+\/=?^_`{\|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)/i", "<a href='mailto:$0'>$0</a>", $part);