PHP OOP Bangla Tutorial: In object-oriented php A constant is declared with the const keyword followed by a name and no need to use any dollar sign as prefixed like properties. Constants are accessed via the class name in conjunction with :: <br />Syntax : <br />Class_Name::CONSTANT_NAME <br /> <br />➠ ➠ Please do not hesitate to Knock Here ➠ ➠ <br />--------------------------------------------------------------------------- <br />➽Visit Our website: http://www.trainingwithliveproject.com <br />➽Like us: https://web.facebook.com/ProDelowar <br />➽Join Us: https://web.facebook.com/groups/PBPTBD <br />----------------------------------------------------------------------------