ExpressionInterface

API reference › yii › db › ExpressionInterface

interface	yii\db\ExpressionInterface
Since	2.0.14
Source	framework/db/ExpressionInterface.php

Implemented by 7 types

• ArrayExpression
• Expression
• JsonExpression
• PdoValue
• Query
• yii\db\oci\LobValue
• yii\db\conditions\ConditionInterface

Interface ExpressionInterface should be used to mark classes, that should be built in a special way.

The database abstraction layer of Yii framework supports objects that implement this interface and will use ExpressionBuilderInterface to build them.

The default implementation is a class Expression.