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PHP array_udiff_assoc() Function

PHP array_udiff_assoc() Function


Hello folks! welcome back to a new section of our tutorial on PHP. In this tutorial guide, we are going to be studying about the PHP array_udiff_assoc() Function.

The array_udiff_assoc() function computes the difference of arrays with a further index check, compare data by a callback function and then returns an array containing all the values from array1 that are not present in any of the other arguments.

Syntax

Following below is the syntax to use this function -

array_udiff_assoc ( $array1, $array2 [, $array3 ..., $data_compare_func] );


Parameter Details

Sr.NoParameter & Description
1

array1(Required)

It specifies an array.

2

array2(Required)

It specifies an array to be compared with the first array.

3

array3(Optional)

It specifies an array to be compared with the first array.

4

data_compare_func*(Required)

The name of the user-made function.


Return Value

It returns an array containing all the values from array1 that are not present in the other arguments.

Example

Try out the below example -

<?php
   function call_back_function($v1,$v2) {
      if ($v1 === $v2) {
         return 0;
      }
      return 1;
   }
   $input = array("a"=>"orange","b"=>"orange","c"=>"mango");
   $input1 = array("a"=>"orange","b"=>"mango","c"=>"orange");
   
   print_r(array_udiff_assoc($input,$input1,"call_back_function"));
?> 

Output

When the above code is executed, it will produce the following result -

Array ( [b] => orange [c] => mango )


Alright guys! This is where we are going to be rounding up for this tutorial post. In our next tutorial, we are going to be discussing about the array_udiff_uassoc() Function.

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