PHP array_diff() Function

The array_diff() function compares the values of two (or more) arrays, and returns the differences.

You can diff several arrays by providing more parameters. The function will return an array of values in the first array that do not appear in the second and subsequent arrays.

Parameter	Description
array1	Required. The specified array which will be compared with other arrays.
array2	Required. Compared with the first array.
array3,…	Optional. Compared with the first array.

Syntax

array_diff(array1,array2,array3...);

Example

$array1=array("a"=>"Prince","b"=>"James","c"=>"Samuel","d"=>"Cooper");
$array2=array("e"=>"Prince","f"=>"James","g"=>"Samuel");
$result=array_diff($array1,$array2);
print_r($result);