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How do I get the name of a function inside a function in PHP?

Magic constants:Magic constants - these are predefined constants in PHP that are used based on their usage. These constants start and end with double underscores (__). These constants are generated by various extensions.Syntax:
$string = __FUNCTION__
Description:this constant is used to return a function name or for anonymous functions.Program 1:PHP program to print the function name inside a function function GeeksforGeeks() { // magic function constant that // contains the function name or // {closure} for anonymous functions $string = __ FUNCTION __ ; // Show result echo $string ; }  
// function call
GeeksforGeeks();  
?>
Exit:
GeeksforGeeks  Program 2:PHP program to print function name inside function         function  Geeks() {   // magic function constant that  // contains the class method name  $string  =  __ METHOD__ ;   // Show result  echo  $string ; }  
// function call
Geeks();  
?>
Exit:
Geeks  Link: https://www.php.net/ manual / en / language.constants.predefined.php 
    

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