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Connecting to a Database the OOP Way (199/200)
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extends Part 2 (198/200)
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extends Part 1 (197/200)
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Multiple Instances of Classes (196/200)
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Class Constructor (195/200)
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Constants (194/200)
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public, private, and protected (193/200)
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Changing a Property Value (192/200)
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Return a Property Value (191/200)
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Classes, Properties, and Methods (190/200)
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Introduction to OOP (189/200)
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Custom Error Messages (188/200)