How to use Decision Making Statement in PHP

In this article, I will explain how the if, if..else statement can be used in PHP.
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Decision Making Statement in PHP

PHP supports following decision making statements:

  • if...statement -if statement is used, if you want to execute a set of code when a condition is true and condition is false.
  • if...else statement -if...else is used to execute some code if a condition is true and another code if the condition is not true (false).
  • if...elseif....else statement - This statement is used to select one of several blocks of code to be executed.

The if Statement

you want to execute some code only if a specified condition is true.

Syntax

if (condition)

This code to be executed if condition is true;

Example

The following example show greater value between given values.

<html>

<body>

<h3 style="color: brown;">If statement example</h3>

    <?php 

    $a=50; 

    $b=20; 

    if ($a>$b) 

    echo "The value of x1 greater than y1"; 

    ?> 

</body>

</html>

 

Output

if statement.jpg

The if...else Statement

if....else statement to execute some code if a condition is true and another code if a condition is false.

Syntax

if (condition)
  This code to be executed if condition is true;
 else
  This code to be executed if condition is false;

Example

The following example show how the if...else statement can be used in PHP.

<html>

<body>

<h3 style="color: chocolate;">If-else statement example</h3>

    <?php 

    $worktime=60; 

    if ($worktime<=50) 

    { 

    $pay_amt=100; 

    $medical=50; 

    echo "Pay Amount : $pay_amt <br/> Medical Amount : $medical "; 

    } 

    else 

    { 

    $pay_amt=200; 

    $medical=100; 

    echo "Pay Amount : $pay_amt <br/> Medical Amount : $medical"; 

    } 

    ?>

</body>

</html>

 

Output

if-else statement.jpg

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