Get numbers from string with regex

Question

I am trying to write a regex to get the numbers from strings like these ones:

javascript:ShowPage(\'6009\',null,null,null,null,null,null,null)
javascript:Bloc         


        

Answer 1

// PHP

$string = 'ssss 12.2';
$pattern = '/\D*(\d+)(.|,)?(\d+)?\D*/';

$replacement = '$1.$3';

$res = (float)preg_replace($pattern, $replacement, $string);

// output 12.2