Q:

how can i use array_filter in php

hi i have this question
my array

[
  [
    'mykey'=>40
  ],
  [
    'mykey'=>37
  ],
  [
    'mykey'=>14
  ],
  [
    'mykey'=>7
  ],
]

i have an array and i wanna filter some key by a value so use this
$r = array_filter($res, function($e){
            return $e['mykey'] == 37;
        });

but i need to campare an array of numbers something like this
$r = array_filter($res, function($e){
            return $e['mykey'] == [37, 14, 7];
        });

how i can filter like this so if mykey is equal to those values so return the arrays with the values 37 14 and 7

A:

You can use in_array to check if the value exists in a list. 
<?php
...

$r = array_filter($res, function($e){
    return in_array($e['mykey'], [37, 14, 7]);
});

