What does it mean the colon in queries yii2 framework?
问题 I'm totally new in yii2 and I want to know what does it mean the colon in the query? I have made a research about binding parameters, but in the yii2 documentation says: // returns all inactive customers $sql = 'SELECT * FROM customer WHERE status=:status'; which side is from the data base? the left side or the right side? which is a simple text and which one is a column from the DB? Im so confused. what would be another way to make the query without the colon? is it valid? why it has 'anyo =