PHP读取数组和对象

Question

I got this array and I want to read the value of "copy01" (in img_4e77e508ab518_197.jpg).

Array ( [0] => stdClass Object ( [meta_value] => O:8:"stdClass":3:{s:6:"copy01";s:25:"img_4e77e508ab518_197.jpg";s:6:"copy02";s:24:"img_4e77e508ab518_80.jpg";s:6:"copy03";s:24:"img_4e77e508ab518_36.jpg";} ) )

This is a print_r($dataOne) and $data_One is a query from the database in WP.

$dataOne = $wpdb->get_results("SELECT meta_value FROM usermeta WHERE umeta_id = '22'");

Answer 1

echo unserialize($dataOne[0]->meta_value)->copy01;