What potential issue arises when using the return statement in a PHP function without ensuring a defined return value in all execution paths?

When using the return statement in a PHP function without ensuring a defined return value in all execution paths, the function may not always return a value as expected. This can lead to unexpected behavior or errors in your code. To solve this issue, make sure to have a return statement for all possible execution paths within the function. 

function exampleFunction($value) {
    if ($value > 0) {
        return "Positive";
    } else {
        return "Non-positive";
    }
}

Keywords

return statement PHP function defined return value execution paths error types

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