Canadian and usa zip code validation. Is it possible?

[tqla]

Hi. I am using this code to validate USA zip codes. I want to make it also accept and validate Canadian zip codes. Canadian zip codes are in this format: L2K-6T2 (alpha, num, alpha - num, alpha, num). Can someone show me how modify this code to do this?

 

    /* check zip for invalid format. */
    elseif ($field == "zip")
    {
      if(!ereg("^[0-9]{5,5}(\-[0-9]{4,4})?$",$value))
      {
           $bad_format[] = $field;
      }

 

Thank you!

[per1os]

ereg("^[A-Z]{1}[0-9]{1}[A-Z]{1}-[0-9]{1}[A-Z]{1}[0-9]{1}", $zip)

 

Not sure if that will work, but yea you want to look at regular expressions www.php.net/ereg

 

[effigy]

<pre>
<?php
echo preg_match('/\A[A-Z]\d[A-Z]-\d[A-Z]\d\z/', 'L2K-6T2');
?>
</pre>

 

frost:

 

Character classes are assumed to be one character by default, so the intervals are not needed.

[Wildbug]

Either of these (includes Canadian, US 5 digit, US 9 digit):

 

if (preg_match('/([A-Z]\d){3}|(\d{5}(-\d{4})?)/i', $zip) { ...


// OR 

if (preg_match('/(?:[A-Z]\d){3}/i', $zip) or preg_match('/\d{5}(?:-\d{4})?/', $zip)) { ...

[per1os]

<pre>
<?php
echo preg_match('/\A[A-Z]\d[A-Z]-\d[A-Z]\d\z/', 'L2K-6T2');
?>
</pre>

 

frost:

 

Character classes are assumed to be one character by default, so the intervals are not needed.

 

Thanks for straightening me out =) One of these days I will sit down and write a ton of regex's to become an expert at them...one of these days.

[OLG]

Or else,

 

Simply get a lovely piece of software called Regexbuddy