Recall & Review
beginner
What does the logical AND operator (&&) do in PHP?
It returns true only if both conditions on its sides are true. Otherwise, it returns false.
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beginner
What is the result of the expression: true || false?
The result is true because the logical OR operator (||) returns true if at least one condition is true.
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beginner
Explain the logical NOT operator (!) in PHP.
The NOT operator (!) reverses the boolean value. If the value is true, it becomes false; if false, it becomes true.
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intermediate
What is the difference between 'and' and '&&' in PHP?
'&&' has higher precedence than 'and'. This means '&&' is evaluated before other operators, while 'and' is evaluated later, which can affect the result.
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beginner
How do logical operators help in decision making in PHP?
They combine multiple conditions to decide if a block of code should run, making programs smarter and able to handle complex choices.
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Which operator returns true only if both conditions are true?
✗ Incorrect
The && operator is the logical AND, which returns true only if both sides are true.
What does the expression (!false) evaluate to?
✗ Incorrect
The ! operator reverses false to true.
Which operator has higher precedence in PHP?
✗ Incorrect
The && operator has higher precedence than 'and'.
What is the result of true || false?
✗ Incorrect
The || operator returns true if at least one condition is true.
Which operator returns true if exactly one condition is true?
✗ Incorrect
The xor operator returns true only if one condition is true, but not both.
Explain how logical AND (&&) and OR (||) operators work in PHP with simple examples.
Think about combining two yes/no questions.
You got /3 concepts.
Describe the difference between 'and' and '&&' operators in PHP and why it matters.
Consider how PHP reads expressions with these operators.
You got /3 concepts.