$data = "123_String"; $whatIWant = substr($data, strpos($data, "_") + 1); echo $whatIWant;
$string = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla felis diam, mattis id elementum eget, ullamcorper et purus."; $prefix = "Nulla"; $index = strpos($string, $prefix) + strlen($prefix); $result = substr($string, $index);