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Limit Form Input TYPE=TEXT to Numbers Only?


Bow Down to the King
Political User
You would think they would have a type=numbers by now...

Does anyone know a way (without using JavaScript?) to limit a form input to numbers only?

Thank you.
you could use ajax to call a php validation function on the server side, then also check the values when the form is submitted using the same php function. this is the method I tend to use if I want any client side validation, though you said no javascript, as it means my validation code is only in one place and isnt duplicated in two places. Though it does mean more traffic between the client and the server.

you can use is_numeric or ctype_isdigit or a regular expression


Bow Down to the King
Political User
Geffy, do you have any good resources for AJAX and form validation? I don't mind JavaScript but I hate annoying popup dialogs ("Fix these errors and press submit again." -- OK button).

Thank you.
Ruby on Rails and model validations :D

Or AjaxCore might do what you need. It lets you pretty easily bind php functions to HTML objects. So you could "onchange" send the field data for checking and then set the contents of a div or span or border the field in red to indicate the incorrect status of the field

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