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PHP array_intersect_ukey() Function
PHP array_intersect_ukey() Function
PHP array_intersect_ukey() Function is used to calculate the intersection of two or more given input array against keys with the help of user-defined function. It accepts two or more arrays and a $Function as parameter. It returns an array as output containing the value of the first array whose keys exist in all others arguments.
Syntax:
array_intersect_ukey($array1, $array2, $array3, ..., function);
Parameter Values
| Parameter | Description |
|---|---|
| array1 | This is a required parameter. This parameterdefines the array that the others will be compared with. |
| array2 | This is a required parameter. This parameterdefinesan array to be compared with the first array. |
| array3,... | This is an optional parameter. This parameterdefinesmore array to be compared with the first array. |
| Myfunction | This is a required parameter. This parameterdefines a callable comparison function. |
Here is an example of array_intersect_ukey() function in PHP:
<html>
<body>
<pre>
<?php
function compare($x,$y)
{
if ($x===$y)
{
return 0;
}
return ($x>$y)?1:-1;
}
$x=array("a"=>"Abhi","b"=>"Jerry","c"=>"Noida","d"=>"Python");
$y=array("a"=>"Abhi","c"=>"Noida","d"=>"PHP");
$result=array_intersect_ukey($x,$y,"compare");
print_r($result);
?>
</pre>
</body>
</html>
Output:
Array
(
[a] => Abhi
[c] => Noida
[d] => Python
)
Example 2:
<html>
<body>
<pre>
<?php
function compare($x,$y)
{
if ($x===$y)
{
return 0;
}
return ($x>$y)?1:-1;
}
$x=array("a"=>"1","b"=>"2","c"=>"3","d"=>"4","e"=>"5");
$y=array("a"=>"1","b"=>"2","c"=>"3","d"=>"5","e"=>6);
$result=array_intersect_ukey($x,$y,"compare");
print_r($result);
?>
</pre>
</body>
</html>
Output:
Array
(
[a] => 1
[b] => 2
[c] => 3
[d] => 4
[e] => 5
)
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