Form Validation

[Bavilo]

Hello,

I have a form which submits info and emails it to me. I have a few fields that should only take numerical values, such as the zip code field, and phone number field. Is there anyway i can validate those fields and give an error if anything besides numbers have been entered?

Thanks in advance

[Prismatic]

[code]<?php
if (!is_numeric($_POST['field']){
    echo "Not a number!";
}
else{
    echo "Number!";
}
?>[/code]

[Bavilo]

[!--quoteo(post=354097:date=Mar 11 2006, 10:20 PM:name=Prismatic)--][div class=\'quotetop\']QUOTE(Prismatic @ Mar 11 2006, 10:20 PM) [snapback]354097[/snapback][/div][div class=\'quotemain\'][!--quotec--]
[code]<?php
if (!is_numeric($_POST['field']){
    echo "Not a number!";
}
else{
    echo "Number!";
}
?>[/code]
[/quote]

Thanks i will try that in a bit

[Bavilo]

Schweeeet it works great. Thanks!

[keeB]

[!--quoteo(post=354107:date=Mar 12 2006, 06:51 AM:name=Bavilo)--][div class=\'quotetop\']QUOTE(Bavilo @ Mar 12 2006, 06:51 AM) [snapback]354107[/snapback][/div][div class=\'quotemain\'][!--quotec--]
Schweeeet it works great. Thanks!
[/quote]

You can also use JScript as a validation tool before submit..

[greycap]

[!--quoteo(post=354126:date=Mar 12 2006, 02:12 AM:name=keeB)--][div class=\'quotetop\']QUOTE(keeB @ Mar 12 2006, 02:12 AM) [snapback]354126[/snapback][/div][div class=\'quotemain\'][!--quotec--]
You can also use JScript as a validation tool before submit..
[/quote]

Yes. But never rely on client side validation. If youre going to validate it on the client, you should still validate on the server side.