dsdprojects09 asked:
I have a PHP form. It asks for a 5 digit zip code, I have it set now to make sure they enter something in the field with Javascript validation, but how can I validate they have entered a 5 digit number? Please include sample code or link to sample code. Thanks so much.
I have a PHP form. It asks for a 5 digit zip code, I have it set now to make sure they enter something in the field with Javascript validation, but how can I validate they have entered a 5 digit number? Please include sample code or link to sample code. Thanks so much.
5 Comments to 'How would I validate a 5 digit zip code in PHP?'
February 10, 2010
I wrote the javascript once to validate a zip code box in a form but I don’t have the code in front of me. If no one else gets you a good answer, send me your e-mail address through my profile and i’ll send you the code ( it’s on my computer at home).
February 11, 2010
Just leave the ‘.’ out of ValidChars.
February 14, 2010
It seems to me the simplest solution is to fix the width of the zip code form element to a max of 5, then use either JS or PHP to check that the data is >10000, which is a trivial comparison in either language.
February 17, 2010
Hello,
Below is an example PHP fragment for confirming that a ZIP code submitted by the user is indeed a 5-digit number. (This would not work for people from countries other than the U.S.)
Sean Colicchio
Server Engineer
Host My Site
February 18, 2010
You can either verify this value with Javascript or PHP, but I would probably recommend you use PHP, as Javascript validation won’t always work - e.g. if someone has javascript disabled.
You can use PHP regular expressions to match many different things. In your case, the proper code to use would be
The variable $match will either be 1 (for a match) or 0 (for no matches) - You can then use this to determine whether to accept the value or not.
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