: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
namespace Nextend\Framework\Misc\StringPhp;
class SingleByte implements StringInterface {
public function strpos($haystack, $needle, $offset = 0) {
return strpos($haystack, $needle, $offset);
public function substr($string, $start, $length = null) {
return substr($string, $start, $length);
public function strlen($string) {