What is causing the "Cannot redeclare class" error in the PHP code provided?

The "Cannot redeclare class" error occurs when a class is being declared more than once in the code. To solve this issue, you need to check if the class has already been declared before declaring it again. This can be done by using the `class_exists` function to conditionally declare the class only if it hasn't been declared before. 

if (!class_exists('ClassName')) {
    class ClassName {
        // Class definition here
    }
}

Keywords

PHP class redeclare error namespace

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