PHP array_udiff_assoc() function

The array_udiff_assoc( ) function is an inbuilt function of PHP. The array_udiff_assoc( ) function use a built-in function to compare the keys and values of two or more arrays, and returns the differences. This function was introduced in PHP 5.0.

Syntax

array array_udiff_assoc ( array $array1 , array $array2 [, array $... ], callable$value_compare_func )

Parameters

Parameter	Description	Is compulsory
array1	It specifies an array.	compulsory
array2	Specifies an array to be compared with the first array.	compulsory
array3	Specifies an array to be compared with the first array.	Optional
Value_compare_function	The name of the user- made function.	compulsory

Return Values

The array_udiff_assoc( ) function returns an array containing the entries from array1 that are not present in any of the other arrays.

Example 1

<?php
function myfunction($x,$y)
{
if ($x===$y)
{
return 0;
}
return ($x>$y)?1:-1;
}
$laptop1=array("a"=>"dell","b"=>"hp","c"=>"asus");
$laptop2=array("a"=>"dell","b"=>"asus","c"=>"hp");
$result=array_udiff_assoc($laptop1,$laptop2,"myfunction");
print_r($result);
?>

Output:

Array
(
    [b] =>hp
    [c] =>asus
)

Example 2

<?php
function userfunction($a,$b) 
{
		if ($a === $b) 
{
return 0;
}
return 1;
}

	$game1 = array("a"=>"cricket","b"=>"cricket","c"=>"football");
	$game2 = array("a"=>"cricket","b"=>"football","c"=>"cricket");
print_r(array_udiff_assoc($game1,$game2,"userfunction"));
?>

Output:

Array
(
    [b] => cricket
    [c] => football   )

Example 3

<?php
function myfunction($y, $z)
{       
return ($y === $z)? 0 : 1;
}
$array1 = array(
		"a" => "sachin",
		"b" => "sehwag",
		"d" => "rahul",
		"r" => "virat"
);
$array2 = array(
		"a" => "sachin",
		"y" => "sehwag",
		"d" => "rahul",
		"x" => "yuvraj"
);
$compare = array_udiff_assoc($array1,$array2, "myfunction");
print_r($compare);
?>

Output:

Array
(
    [b] =>sehwag
    [r] =>virat
)

Example 4

<?php
function myfunction($a,$b) 
{
return ($a==$b)?0:1;
}
$a1=array("a"=>"php","b"=>"java","c"=>"python");
$a2=array("a"=>"php","b"=>"python","c"=>"java");
print_r(array_udiff_assoc($a1,$a2,"myfunction"));
?>

Output:

Array
(
    [b] => java
    [c] => python
)

Next TopicPHP Array Functions

← prev next →

Help Others, Please Share

Javatpoint Services

JavaTpoint offers too many high quality services. Mail us on [email protected], to get more information about given services.

Website Designing
Website Development
Java Development
PHP Development
WordPress
Graphic Designing
Logo
Digital Marketing
On Page and Off Page SEO
PPC
Content Development
Corporate Training
Classroom and Online Training
Data Entry

Training For College Campus

JavaTpoint offers college campus training on Core Java, Advance Java, .Net, Android, Hadoop, PHP, Web Technology and Python. Please mail your requirement at [email protected].
Duration: 1 week to 2 week

^{Like/Subscribe us for latest updates or newsletter}