Logical operators in PHP - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if both conditions are true using the AND operator.

PHP

<?php
$age = 20;
$hasID = true;
if ($age >= 18 [1] $hasID) {
    echo "Access granted.";
} else {
    echo "Access denied.";
}
?>

Drag options to blanks, or click blank then click option'

Aand

B&&

C||

Dor

Attempts:

3 left

💡 Hint

Common Mistakes

Using || which means OR, not AND.

Using 'and' keyword which has lower precedence and can cause unexpected results.

The && operator checks if both conditions are true.

2fill in blank

medium

Complete the code to check if at least one condition is true using the OR operator.

PHP

<?php
$isWeekend = false;
$isHoliday = true;
if ($isWeekend [1] $isHoliday) {
    echo "You can relax today.";
} else {
    echo "You have to work.";
}
?>

Drag options to blanks, or click blank then click option'

Axor

B&&

Cand

D||

Attempts:

3 left

💡 Hint

Common Mistakes

Using && which requires both conditions to be true.

Using xor which returns true only if exactly one condition is true.

The || operator returns true if at least one condition is true.

3fill in blank

hard

Fix the error in the code to correctly negate the condition using the NOT operator.

PHP

<?php
$isRaining = false;
if ([1]$isRaining) {
    echo "Take an umbrella.";
} else {
    echo "No umbrella needed.";
}
?>

Drag options to blanks, or click blank then click option'

A!

Bnot

C~

D!!

Attempts:

3 left

💡 Hint

Common Mistakes

Using ~ which is bitwise NOT, not logical NOT.

Using 'not ' which is valid but less common and can cause precedence issues.

The ! operator negates a boolean value in PHP.

4fill in blank

hard

Fill in the blank to create a condition that is true only if exactly one of the two variables is true.

PHP

<?php
$hasTicket = true;
$hasInvitation = false;
if ($hasTicket [1] $hasInvitation) {
    echo "Entry allowed.";
} else {
    echo "Entry denied.";
}
?>

Drag options to blanks, or click blank then click option'

A&&

B||

Cxor

Dand

Attempts:

3 left

💡 Hint

Common Mistakes

Using && which requires both to be true.

Using || which allows both to be true.

The xor operator returns true only if exactly one operand is true.

5fill in blank

hard

Fill all three blanks to create a complex condition that checks if a user is an adult and either has a membership or a guest pass.

PHP

<?php
$age = 22; $hasMembership = false;
$hasGuestPass = true;
if ($age >= [1] [3] ($hasMembership [2] $hasGuestPass)) {
    echo "Access granted.";
} else {
    echo "Access denied.";
}
?>

Drag options to blanks, or click blank then click option'

A18

B||

C&&

D21

Attempts:

3 left

💡 Hint

Common Mistakes

Using 21 instead of 18 for adult age.

Mixing up && and || operators.

The code checks if age is at least 18, and if the user has either membership or guest pass. The || operator is used inside parentheses, and && connects the age check with the membership/guest pass check.