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PHP Enhancing a Simple PHP Application Integrating Validation Errors Displaying the Error Message

Posted by Michael Wisniewski
Michael Wisniewski
8,906 Points

How would you write the code for Radio Buttons and Checkboxes that must contain a value?

I have defined my radio buttons and checkboxes just as every other variable in the beginning of the file. When a user submits the form without checking the required checkboxes and/or marking the required radio buttons, my error messages still display correctly - However, it always states that the checkboxes & radio buttons are 'NOTE: Undefined Index...' at the very top of the page, which pushes my header file out of the way.

How can I re-write the code to correctly display the error messages without these Undefined Index messages displaying as well?

1 Answer

Christer Austad
Christer Austad
8,373 Points
Christer Austad
Christer Austad
8,373 Points

Hi.

First off, it always helps when you provide us with your code when asking for help. See the "Markdown Cheatsheet" for instructions.

An undefined index notice is raised when you try to access a variable that don't exist. Have a look here