how to lookup value inside object php

1// array demo
2
3public $gender = array(
4  1 => 'Male',
5  2 => 'Female',
6  3 => 'Other',
7);
8
9$gen = 1;
10
11if ($gen == array_search('Male', $this->gender)) {
12  $gender = __d('member', 'male');
13
14} elseif ($gen  == array_search('Female', $this->gender)) {
15  $gender = __d('member', 'female');
16
17}
18
19

1$array = [
2    'clothes' => 't-shirt',
3    'size'    => 'medium',
4    'color'   => 'blue',
5];
6 
7extract($array);
8 
9echo("$clothes $size $color"); // t-shirt medium blue
10

1function lookup($array, $key) {
2
3    //loop through all values in array
4    foreach($array as $values) {
5
6        //if 'key' value matches `$key`, return 'value' value.
7        if($values['key'] == $key) {
8            return $values['value'];
9        }
10
11    }
12
13    //if nothing has been returned, return empty string
14    return "";
15}
16

1$fruit = json_decode($fruit, true);
2lookup($fruit, 'key');
3