如何从PHP中的字符串中获取数字[关闭]

Question

I have following string

Casas (3)

I want to get the number three out of it .

in Jquery I am using this regex

regExp = /\(([^)]+)\)/;

But i dont know how to do that in PHP

Thanks in advance

Answer 1

Try this

$str = "Casas (3)";
preg_match_all('!\d+!', $str, $matches);
print_r($matches);