Interview Questions - 2 - PHP

1. What’s the special meaning of __sleep and __wakeup?

2. How do you call a constructor for a parent class?

3. Are objects passed by value or by reference?

4. What’s the difference between accessing a class method via -> and via ::?

5. If the variable $a is equal to 5 and variable $b is equal to character a, what’s the value of $$b?

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Interview Questions - 2 - Answers

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