问题描述：

I have a custom table in my wordpress install, and I want to get an average out of a column on the table. I\'m using the following PHP:

 $latavg = $wpdb->get_results(\"SELECT AVG(stop_lat) FROM stops_txt\"); 

However, when I want to use the average later on as a string, it returns as \'ARRAY\', yet attempting to use PRINT_R to view the array reveals nothing. The Column in the table is a DECIMAL data-type, what am I missing?

网友观点：

$latavg = $wpdb->get_var(\\\"SELECT AVG(stop_lat) FROM stops_txt\\\");