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How are two objects compared in PHP? PHP provides you with the ‘==’ operator, which is used to compare two objects at a time. This is used to check if there is a common presence of attributes and values between the objects in comparison. The ‘===’ operator is also used to compare if both objects in consideration are referencing to the same class. $ob2= (object)['t'=>'m']; $ob1= (object)['t'=>'m']; echo ($ob1 == $ob2); Result: 1 ---------------------------------------------------

Add select columns after already adding select

Use: $query->addSelect([])