What is the difference between array_diff and array_diff_assoc functions in PHP?

The array_diff function in PHP compares the values of two arrays and returns the differences, while the array_diff_assoc function compares both the keys and values of two arrays. If you want to only compare the values of two arrays, you should use array_diff. If you need to compare both keys and values, then array_diff_assoc is the appropriate function to use. 

$array1 = ['a' => 'apple', 'b' => 'banana', 'c' => 'cherry'];
$array2 = ['a' => 'apple', 'b' => 'orange', 'd' => 'date'];

// Using array_diff to compare values only
$diff = array_diff($array1, $array2);
print_r($diff);

// Using array_diff_assoc to compare keys and values
$diffAssoc = array_diff_assoc($array1, $array2);
print_r($diffAssoc);

Keywords

PHP array_diff array_diff_assoc difference associative array

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