20th Sep - PHP ternary operator ~ Linchakin

In this article, we will understand about a PHP ternary operator with the help of various examples.

What do you mean by Ternary operator?

It is also called a conditional operator. The ternary operator is an operator that decreases the length of code while performing comparisons. It is an alternative for using if-else and nested if-else statements. We can use the ternary operator when there is a need to simplify the if-else statements and to make efficient code out of a complex program structure.

Syntax:

Following is the syntax of ternary operator in php.

(Condition) ? (code1) : (code2);

In the above syntax,

Condition statement: It is a PHP expression that will be evaluated in order to return a Boolean value.
code1: This will be the statement that will be executed when the conditional results will return true.
code2: This will be the statement that will be executed when the conditional results will return in a false state.

Flow diagram of PHP:

Example 1:

<! Doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> <title> Ternary Operator Example in PHP </title> <style> body { color: #FFFFFF; font-family: 'League Gothic', Impact, sans-serif; text-transform: uppercase; text-align: center; font-size: 1em; text-align: center; line-height: 12px; margin: 120px; background: #282537; background-image: -webkit-radial-gradient(top, circle cover, #3c3b52 0%, #252233 80%); background-image: -moz-radial-gradient(top, circle cover, #3c3b52 0%, #252233 80%); background-image: -o-radial-gradient(top, circle cover, #3c3b52 0%, #252233 80%); background-image: radial-gradient(top, circle cover, #3c3b52 0%, #252233 80%); } h2 { font-family: 'Indie Flower', cursive; font-size: 32px; color: #03A9F4; font-weight: bold; text-align: center; padding: 10px 0; } </style> <body> <h2> Ternary Operator Example in PHP </h2> </body> </html> <?php $a = 40; $b = $a > 45 ? 20 : 5; print ("<h2>Value of b is: " . $b . "</h2>"); ?>

Explanation:

In the above example, we have taken a condition that if the condition is true then the 20 value is displayed otherwise the 5 value is displayed.

Output:

Following is the output of this example:

Example 2:

<! Doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> <title> Ternary Operator Example in PHP </title> <style> body { color: #FFFFFF; font-family: 'League Gothic',Impact,sans-serif; text-transform: uppercase; text-align: center; font-size: 1em; text-align: center; line-height: 12px; margin: 120px; background: #282537; background-image: -webkit-radial-gradient(top, circle cover, #3c3b52 0%, #252233 80%); background-image: -moz-radial-gradient(top, circle cover, #3c3b52 0%, #252233 80%); background-image: -o-radial-gradient(top, circle cover, #3c3b52 0%, #252233 80%); background-image: radial-gradient(top, circle cover, #3c3b52 0%, #252233 80%); } h2 { font-family: 'Indie Flower', cursive; font-size: 32px; color: #03A9F4; font-weight: bold; text-align: center; padding: 10px 0; } </style> <body> <h2> Ternary Operator Example in PHP </h2> </body> </html> <?php $result = 62; echo ($result >= 40) ? "Passed" : " Failed"; ?>

Explanation:

In the above example, we have taken a condition that if the condition is true then the passed message is displayed otherwise the fail message is displayed.

Output:

Following is the output of this example:

Example 3:

<! Doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> <title> Ternary Operator Example in PHP </title> <style> body { color: #FFFFFF; font-family: 'League Gothic',Impact,sans-serif; text-transform: uppercase; text-align: center; font-size: 1em; text-align: center; line-height: 12px; margin: 120px; background: #282537; background-image: -webkit-radial-gradient(top, circle cover, #3c3b52 0%, #252233 80%); background-image: -moz-radial-gradient(top, circle cover, #3c3b52 0%, #252233 80%); background-image: -o-radial-gradient(top, circle cover, #3c3b52 0%, #252233 80%); background-image: radial-gradient(top, circle cover, #3c3b52 0%, #252233 80%); } h2 { font-family: 'Indie Flower', cursive; font-size: 32px; color: #03A9F4; font-weight: bold; text-align: center; padding: 10px 0; } </style> <body> <h2> Ternary Operator Example in PHP </h2> </body> </html> <?php $age = 20; print ($age >= 18) ? "Adult" : "Not Adult"; ?>

Explanation:

In the above example, we have taken a condition that if the age is greater, the adult message is displayed otherwise the not adult message is displayed.

Output:

Following is the output of this example:

Example 4:

<! Doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> <title> Ternary Operator Example in PHP </title> <style> body { color: #FFFFFF; font-family: 'League Gothic', Impact, sans-serif; text-transform: uppercase; text-align: center; font-size: 1em; text-align: center; line-height: 12px; margin: 120px; background: #282537; background-image: -webkit-radial-gradient(top, circle cover, #3c3b52 0%, #252233 80%); background-image: -moz-radial-gradient(top, circle cover, #3c3b52 0%, #252233 80%); background-image: -o-radial-gradient(top, circle cover, #3c3b52 0%, #252233 80%); background-image: radial-gradient(top, circle cover, #3c3b52 0%, #252233 80%); } h2 { font-family: 'Indie Flower', cursive; font-size: 32px; color: #03A9F4; font-weight: bold; text-align: center; padding: 10px 0; } </style> <body> <h2> Ternary Operator Example in PHP </h2> </body> </html> <?php $eligible = true; $has_credit = false; $message = $eligible ? ($has_credit ? 'Eligible for credit card? : 'Not eligible for credit card ') : 'Not eligible to buy'; echo $message; ?>

Explanation:

In the above example, we have taken a condition that if the condition is true, the eligible for credit card message is displayed otherwise the Not eligible for credit card is displayed.

Output:

Following is the output of this example: