For website developing it is crucial to know your variables. To double check your array values here is the simple code:

echo "<pre>";print_r($array);

echo "</pre>";

HowTo enable/disable wordpress comments via PHPMyAdmin:

Enable:

UPDATE wp_posts SET comment_status = ‘open’, ping_status = ‘open’ WHERE comment_status = ‘closed’;

Disable:

UPDATE wp_posts SET comment_status = ‘closed’, ping_status = ‘closed’ WHERE comment_status = ‘open’;