PHP - Function array_diff()


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Syntax

array array_diff ( array $array1, array $array2 [, array $array3 ...] );

Definition and Usage

Compares array1 against array2 and returns the difference.

Parameters

Parameter Description
array1 Required. The first array is the array that the others will be compared with.
array2 Required. An array to be compared with the first array
array3 Optional. An array to be compared with the first array

Return Values

Returns an array containing the differences.

Example

Try out following example −

<?php
   $input_array1 = array("orange", "banana", "apple");
   $input_array2 = array("orange", "mango", "apple");
   
   print_r(array_diff($input_array1, $input_array2));
?> 

This will produce the following result −

Array ( [1] => banana )

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