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PHP Basics — Unit Test 1--:--

1. Which symbol starts a variable name in PHP? (1 mark)

2. Which function prints the structure of an array? (1 mark)

3. Which superglobal holds submitted form data sent with method="post"? (1 mark)

4. What does PDO stand for? (1 mark)

5. Which operator compares both value and type? (2 marks)

6. Which function safely hashes a password? (2 marks)