比较简洁的代码一:
$str = '';
$isMatched = preg_match('/^0?(13|14|15|17|18)[0-9]{9}$/', $str, $matches);
var_dump($isMatched, $matches);
代码二

比较简洁的代码一:
$str = '';
$isMatched = preg_match('/^0?(13|14|15|17|18)[0-9]{9}$/', $str, $matches);
var_dump($isMatched, $matches);
代码二