Function to multiply two numbers in PHP

Function to multiply two numbers in PHP

In this tutorial, we will discuss the concept of  Function to multiply two numbers in PHP

In this topic, we are going to learn how  to write a program to multiplication of two numbers using user-defined function in  PHP programming language

Find multiplication of two numbers

Find multiplication of two numbers using function – #1

In this program, the user declare two integer variables $x and $y as parameters of the user defined function. Then two numbers are multiplied using multiplications(-) operator. finally when the user call the function  with passing argument, the result is displayed on the screen

Program 1

<?php //php script
//function definition with parameter
function mulTwoNumbers($x, $y)
{
    return $x * $y;
    //calculate the product of two numbers using minus operator
    //and return value
}
//Calling the function with argument to print result
echo "The multiplication of 25 and 35: ".mulTwoNumbers(25,35);
echo "<br>";
echo "The multiplication of 15 and -30: ".mulTwoNumbers(15,-30);
echo "<br>";
echo "The multiplication of -10 and -11: ".mulTwoNumbers(-10,-11);
echo "<br>";
//exit php
?>

When the above  code is executed, it produces the following result

The multiplication of 25 and 35: 875
The multiplication of 15 and -30: -450
The multiplication of -10 and -11: 110

Find multiplication of two numbers using function – #2

In this program, the user declare two integer variables $x and $y as parameters of the user defined function. Then two numbers are multiplied using multiplication(*) operator. finally when the user call the function with passing  argument, the result is displayed on the screen

Program 2

<?php //php script
//function definition
function mulTwoNumbers($x, $y)
{
    $mul=$x * $y;
    //calculate product of two numbers 
    //using multiplicaion operator
    return $mul;//return the result to main
    echo $mul;//print the result when calling the function
}

//Calling the function and print result
echo "The product of 20 and 30: ";
echo mulTwoNumbers(20,30);
echo "<br>";
echo "The product of 20 and 12: ";
echo mulTwoNumbers(20,12);
echo "<br>";
echo "The product of 10 and -10: ";
echo mulTwoNumbers(10,-10);
echo "<br>";
//exit php
?>

When the above  code is executed, it produces the following result

The product of 20 and 30: 600
The product of 20 and 12: 240
The product of 10 and -10: -100

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