Tutorial on calling PDO_PHP in another class

Call PDO
in another class


There is a class build class, and PDO is connected. The call is $db

I made an error when calling $db in the build class, prompting that there is a problem with query

I wrote this in the class

$query = $db->query($sql)

Let me answer




Website ideas and solutions
I don’t have a very deep understanding of classes. Please give me some support!

Website ideas and solutions
Just say there was an error. If you don’t post the error code, who knows what went wrong

http://www.bkjia.com/PHPjc/632508.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/632508.htmlTechArticleCall PDO in another class. There is a class build class, and PDO has been connected and called $db. I am building There is an error when calling $db in the class. It prompts that there is a problem with the query. I wrote this in the class...