Which of the following PHP code snippets correctly removes duplicate values from the array $data?

easy📝 Syntax Q3 of 15

PHP - Array Functions

Which of the following PHP code snippets correctly removes duplicate values from the array $data?

A$unique = array_unique($data);

B$unique = array_flip($data);

C$unique = array_reverse($data);

D$unique = array_values($data);

Step-by-Step Solution

Solution:

Step 1: Identify function purpose
array_unique() is designed to remove duplicate values from an array.
Step 2: Analyze options
array_flip() swaps keys and values, array_reverse() reverses order, array_values() reindexes but does not remove duplicates.
Final Answer:
$unique = array_unique($data); -> Option A
Quick Check:
Check if duplicates are removed after applying array_unique() [OK]

Quick Trick: Use array_unique() to remove duplicates [OK]

Common Mistakes:

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