db\Query exists()

exists() public method

Returns a value indicating whether the query result contains any row of data.

public boolean exists ( $db = null )
$db yii\db\Connection

The database connection used to generate the SQL statement. If this parameter is not given, the db application component will be used.

return boolean

Whether the query result contains any row of data.

doc_Yii
2016-10-30 16:58:59
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