[Solved] What is the output of the following PHP code? $arr = ['x' => 'apple', 'y' => 'banana', 'z' => 'apple']; $result = array_unique($arr); print_r($result); | PHP

PHP - Array Functions

What is the output of the following PHP code?

$arr = ['x' => 'apple', 'y' => 'banana', 'z' => 'apple'];
$result = array_unique($arr);
print_r($result);

AArray ( [x] => apple [y] => banana [z] => apple )

BArray ( [x] => apple [y] => banana )

CArray ( [y] => banana [z] => apple )

DArray ( [x] => apple [z] => apple )

Step-by-Step Solution

Solution:

Step 1: Apply array_unique() to the array
The function removes duplicate values, keeping the first occurrence of 'apple' at key 'x' and 'banana' at 'y'. The second 'apple' at 'z' is removed.
Step 2: Understand the resulting array
The resulting array has keys 'x' and 'y' with values 'apple' and 'banana' respectively.
Final Answer:
Array ( [x] => apple [y] => banana ) -> Option B
Quick Check:
array_unique() removes duplicates, keeps first occurrence [OK]

Quick Trick: array_unique() keeps first unique value, removes later duplicates [OK]

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