What best practices should be followed to prevent conflicts and errors related to function redeclaration in PHP scripts?

When working with PHP scripts, it is crucial to avoid redeclaring functions to prevent conflicts and errors. To prevent function redeclaration, always check if a function exists before declaring it using the `function_exists()` function. This way, you can safely define functions without worrying about conflicts. 

if (!function_exists('myFunction')) {
    function myFunction() {
        // Function implementation
    }
}

Keywords

function redeclaration PHP scripts conflicts errors prevention

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