Q:

Adding Two Numbers in Php

robaa
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2022-11-13
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There are three methods to add two numbers:

  • Adding in simple code in PHP
  • Adding in form in PHP
  • Adding without using arithmetic operator (+).
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robaa
2022-11-13
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Adding in Simple Code

Addition of two numbers 15 and 30 is shown here.

Example:

<?php  
$x=15;  
$y=30;  
$z=$x+$y;  
echo "Sum: ",$z;  
?>

Output:

 

Adding in Form

Two numbers can be added by passing input value in the form.

Example:

<html>  
<body>  
<form method="post">  
Enter First Number:  
<input type="number" name="number1" /><br><br>  
Enter Second Number:  
<input type="number" name="number2" /><br><br>  
<input  type="submit" name="submit" value="Add">  
</form>  
<?php  
    if(isset($_POST['submit']))  
    {  
        $number1 = $_POST['number1'];  
        $number2 = $_POST['number2'];  
        $sum =  $number1+$number2;     
echo "The sum of $number1 and $number2 is: ".$sum;   
}  
?>  
</body>  
</html>

Output:

 

Adding in Simple Code

Two numbers can be added by passing input value in the form but without using (+) operator.

<body>  
<form>  
Enter First Number:  
<input type="number" name="number1" /><br><br>  
Enter Second Number:  
<input type="number" name="number2" /><br><br>  
<input  type="submit" name="submit" value="Add">  
</form>  
 </body>  
<?php      
@$number1=$_GET['number1'];   
@$number2=$_GET['number2'];   
for ($i=1; $i<=$number2; $i++)     
{      
 $number1++;      
}      
echo "Sum of $number1 and $number2 is=".$number2;  
?>

Output:

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