PHP
Find the Difference Between Two PHP Arrays
Discover elements present in one array but not in another using `array_diff()`. This is useful for comparing datasets and identifying unique items.
<?php
$array1 = ['apple', 'banana', 'orange', 'grape'];
$array2 = ['banana', 'grape', 'kiwi', 'mango'];
$difference = array_diff($array1, $array2);
print_r($difference);
?>
How it works: The `array_diff()` function compares `array1` against one or more other arrays and returns the values in `array1` that are not present in any of the other arrays. This is particularly useful for identifying added or removed items between two lists or for simple set difference operations.