PHP Fatal error: Cannot redeclare class PHP Fatal error: Cannot redeclare class php php

PHP Fatal error: Cannot redeclare class


You have a class of the same name declared more than once. Maybe via multiple includes. When including other files you need to use something like

include_once "something.php";

to prevent multiple inclusions. It's very easy for this to happen, though not always obvious, since you could have a long chain of files being included by one another.


It means you've already created a class.

For instance:

class Foo {}// some code hereclass Foo {}

That second Foo would throw the error.


That happens when you declare a class more than once in a page.You can fix it by either wrapping that class with an if statement (like below), or you can put it into a separate file and use require_once(), instead of include().

if (!class_exists('TestClass')) {   // Put class TestClass here}