Call by Value in PHP with Examples

Program 1

<html>
    <head><title>PHP For Loops</title>
    <body>
     <center>
  
<?php
    function display()  // defination
   {
      echo "Data Flair Free Course";
      echo "<br>Data Flair Free Certificate course";
   }
     /* 
        function 
        
        inbuild (derived)
        userdefine

         defination
         calling
     */ 
    display();   // Calling
    display();   
    display();   
    display();   
?>
</center>
</body>
</html>

Program 2

<html>
    <head><title>PHP For Loops</title>
    <body>
     <center>
  
<?php
    // function add($a,$b,$c)
    // {
    //     $d=$a+$b+$c;
    //     echo "<br>Addition is: ".$d;
    // }

   function factorial($n)  // Parameter
   {
        $f=1;
        while($n!=0)
        {
               $f=$f*$n;
               $n--;
        }
        return $f; 
   }

//Calling

     $m=7;
     $x,$y=factorial($m);  //call

     echo "<br>Factorial of ".$m." is: ".$x;
    if($x%2==0)
      echo "<br> Result is even no"; 
   else
  echo "<br> Result is odd no";


///  palindrom 
//  arsmstrong







//factorial();   // call by value      (argument)
   
//    factorial(7);
//    factorial(4);
//    factorial(8);

// add(5,3,7);
// add(15,20,10);
?>
</center>
</body>
</html>

 

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