PHP if..Else..Elseif

PHP conditional statements are used to test the conditions. It supports different types of conditional statement. Following are the types of conditional statement

if statement
..else statement
..elseif....else statement
switch statement

PHP if Statement PHP if statement is used to execute the code block if the one condition is true.

Syntax:

if (condition) {
Php code to be executed if condition is true;
}

Example:

<!DOCTYPE html>
<html>
<head>
            <title>PHP Tutorial</title>
</head>
<body>
<?php
$nos=5;
if($nos==5){
            echo "Nos is Equall to: 5";
}
?>
</body>
</html>

Output

Nos is Equall to 5

PHP if… else Statement PHP if- else statement is used to execute the condition whether it is true of false.

Syntax:

if (condition) {
php code will be executed if condition is true;
} else {
phpcode will be executed if condition is false;
}

Example

<!DOCTYPE html>
<html>
<head>
            <title>PHP Tutorial</title>
</head>
<body>
<?php
$age=18;
if($age==17){
            echo "Congratulation! You are eligible for vote";
}
else{
            echo "Sorry! You are not eligible for vote";
}
?>
</body>
</html>

Output

Sorry! You are not eligible for vote

PHP if..elseif ..else Statement PHP if- elseif-else statement is used to execute one or more condition whether it is true of false.

Syntax:

if (condition) {
php code wil be executed if this condition is true;
} elseif (condition) {
php code wil be executed if this condition is true;
} else {
php code wil be executed if all conditions are false;
}

Example:

<!DOCTYPE html>
            <html>
            <head>
                        <title>PHP Tutorial</title>
            </head>
            <body>
            <?php
            $day=4;
            if($day==1){
                        echo "Today is Sunday";
            }
            elseif($day==2){
                        echo "Today is Monday";
            }
            elseif($day==3){
                        echo "Today is Tuesday";
            }
            elseif($day==4){
                        echo "Today is Wednesday";
            }


            elseif($day==5){


                        echo "Today is Thursday";
            }
            elseif($day==6){
                        echo "Today is Friday";
            }
            elseif($day==7){
                        echo "Today is Saturday";
            }
            else{
                        echo"Invalid Day !";
            }
            ?>
            </body>
            </html>

Output

Today is Wednesday

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PHP if..Else..Elseif

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