Website Development

Undefined array key warning in PHP 8

Posted on June 1, 2026, 5:46 pm • 376 Views

Posted on June 1, 2026, 5:46 pm

I am completely stuck. It works perfectly on my local XAMPP server but breaks when I upload it to production. Any ideas?

Replied on June 2, 2026, 11:38 am

You are probably attaching the event listener inside a loop or function that runs repeatedly. Either unbind the event before binding it, or move the listener outside the function.

Replied on June 2, 2026, 10:41 pm

You are probably attaching the event listener inside a loop or function that runs repeatedly. Either unbind the event before binding it, or move the listener outside the function.