What are the potential pitfalls of outputting the return value of a function without a return value in PHP?

When outputting the return value of a function without a return value in PHP, you may encounter unexpected results or errors since the function was not designed to return a value. To solve this issue, you should ensure that the function does not return any value or handle the return value appropriately before outputting it. 

function myFunction() {
    // Do something without returning a value
}

// Call the function and do not output its return value
myFunction();

Keywords

PHP return value function error handling debugging

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