php - 如何在select where参数中使用echo？

I want to use the string ( echo $row['en']; ) in the select command in the where parameter of subject :

$sql="SELECT * FROM uploaded WHERE sbid='".$newid."' AND subject = **HERE** ;

and thanks :)

You can build the SQL query like this:

$sql = "SELECT * FROM uploaded WHERE sbid = $newid AND subject = '{$row['en']}'";

However, it is usually not safe to build SQL query like this because it might be vulnarable to SQL injection.