use Regex within Php Code

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.

have you tried taking out those '{' and '}' in your regex?

Andreas Wong
– Andreas Wong

2012-03-09 06:46:48 +00:00
Commented Mar 9, 2012 at 6:46 — Andreas Wong
– Andreas Wong, Commented Mar 9, 2012 at 6:46

mathematical.coffee · Accepted Answer · 2012-03-10 07:51:46Z

3

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;

edited Mar 10, 2012 at 7:51

answered Mar 9, 2012 at 6:47

mathematical.coffee

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4 Comments

noobie-php Over a year ago

preg_replace() [function.preg-replace]: Unknown modifier 'g' i am getting this after i used your code.

Jason Over a year ago

I didn't look at the modifier that closely, but this may help you: php.net/manual/en/reference.pcre.pattern.modifiers.php

Toto Over a year ago

There's no g modifier in preg_replace.

mathematical.coffee Over a year ago

Thanks, forgot preg_replace is global. Will edit the answer.

Jason · Accepted Answer · 2012-03-09 07:13:03Z

1

First of all, you don't need the curly braces around your regex's. Second of all, the strtoupper isn't going to work the way you've done it, but you're not far off.

<?php
$pin = preg_replace('/\//', '-', $pin);
$pin = preg_replace('/([0-9])([a-zA-Z])/','$1-$2', $pin);
$pin3 = strtoupper($pin);
echo $pin3;
?>

edited Mar 9, 2012 at 7:13

answered Mar 9, 2012 at 6:52

Jason

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