test Object
(
    [key1] => 
    [key2] => 
)
<br />
<b>Fatal error</b>:  Uncaught TypeError: array_merge(): Argument #1 must be of type array, test given in /var/www/domains/cmsws.com/examples/php/classes/class_array_merge.php:22
Stack trace:
#0 /var/www/domains/cmsws.com/examples/php/classes/class_array_merge.php(22): array_merge()
#1 {main}
  thrown in <b>/var/www/domains/cmsws.com/examples/php/classes/class_array_merge.php</b> on line <b>22</b><br />