如何从PHP中的关联数组中获取最大键/值对数组？

Question

I have an associative array like below

[
    [
        'k1' => 'v1',
        'k2' => 'v2'
    ],
    [
        'k1' => 'v1',
        'k2' => 'v2',
        'k3' => 'v3'
    ],
    [
        'k1' => 'v1',
        'k2' => 'v2',
        'k3' => 'v3',
        'k4' => 'v4'
    ]
]

Is it possible to get 3rd array which has maximum key/value pair.

EDIT

Let me clear a bit.

• array[0] contains 2 key/value pair.
• array[1] contains 3 key/value pair.
• array[2] contains 4 key/value pair.

So I need to get array which contains maximum key/value pair.

Thanks in advance

Answer 1

You can use bellow approach for getting your result :

$array = array(
                array('K1'=>'v1'),
                array('K1'=>'v1','K2'=>'v2'),
                array('K1'=>'v1','K2'=>'v2','K3'=>'v3')
                );
$maxs = array_keys($array, max($array));
print_r($maxs);

It will provide you output as :

Array ( [0] => 2 ) 

Then you can get your key value pairs according to your requirement after passing this maxs array value like this.

$myMaxValue = $array[$maxs[0]];
print_r($myMaxValue);

This provide you below result :

Array ( [K1] => v1 [K2] => v2 [K3] => v3 )