PHP array_udiff_uassoc() Function
array_udiff_uassoc() Function used for Compare the keys and values of two arrays and return the differences.
Note: This function uses two user-defined functions for comparison; the key is used in the first function and the value is used in the second!
Returns an array containing the entries from array1 that are not present in any of the other arrays
| 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 |
| function1 | Required. The name of the user-made function that compares the array keys |
| function2 | Required. The name of the user-made function that compares the array values |
Syntax
array_udiff_uassoc(array1,array2,array3...,myfunction_key,myfunction_value) Example
function myfunction_key($a,$b)
{
if ($a===$b)
{
return 0;
}
return ($a>$b)?1:-1;
}
function myfunction_value($a,$b)
{
if ($a===$b)
{
return 0;
}
return ($a>$b)?1:-1;
}
$array1=array("a"=>"Samuel","b"=>"Cooper","c"=>"Alex");
$array2=array("a"=>"Samuel","b"=>"Cooper","c"=>"James");
$result=array_udiff_uassoc($array1,$array2,"myfunction_key","myfunction_value");
print_r($result);Output
Array ( [c] => Alex )
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