5. Question 1

a. Differentiate between Numeric Array and Associative Array. Provide example to implement both code in PHP.

b. How can you sort (ascending and descending) associative array according to its key?

6. Question 2

a. Discuss about client-side validation and server-side validation. How would you do validation to protect web page from malicious attack?

b. How can you describe the use of implode() and explode() ?
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