Are there any potential pitfalls or drawbacks to using the __FUNCTION__ magic constant in PHP?

One potential pitfall of using the __FUNCTION__ magic constant in PHP is that it may not always return the expected function name, especially when used within a class or namespace. To ensure accurate function name retrieval, it is recommended to use the debug_backtrace() function instead. 

function getFunctionName() {
    $trace = debug_backtrace();
    return $trace[1]['function'];
}

// Example usage
function exampleFunction() {
    echo getFunctionName(); // This will output 'exampleFunction'
}

Keywords

__FUNCTION__ magic constant PHP drawbacks potential pitfalls

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