Question

hi this is my Regex code

 var concatedString = concatedSubstring.replace(/\//g, '-').replace(/([0-9])([a-zA-     Z])/g,"$1-$2").replace(/[A-Za-z]/g, function(c){
            return c.toUpperCase().charCodeAt(0)-64; 

I am trying to convert it to PHP regex what I have done is

 $pin = preg_replace('{/\//g}', '-', $pin);
             $pin = preg_replace('{/([0-9])([a-zA-Z])/g}','$1-$2', $pin);
             $pin3 = preg_replace('{/[A-Za-z]/g}', strtoupper($pin), $pin );
             echo $pin3;

I cant progress any further.

Answer 1

You don’t need those {} around everything.

Also, in your last preg_replace, you’re matching [a-zA-Z] and replacing with upper-case – but if it’s upper case in the first place, there’s no need to replace it:

$pin = preg_replace('/\//', '-', $pin);
$pin = preg_replace('/([0-9])([a-zA-Z])/','$1-$2', $pin);
// only need to convert lowercase to uppercase.
$pin3 = preg_replace('/[a-z]/', strtoupper($pin), $pin ); 
echo $pin3;