Advanced PHP Simplified

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Manipulating Content: extend method, reusable code

Getting Started with Repository Pattern in Laravel using Inheritance and Dependency Injection - DEV Community

PHP Keywords List of Various PHP Keywords You Need To Know

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Intermediate PHP (4) Object-Oriented PHP (2). Object-oriented concepts Classes, attributes and operations Class attributes Per-class constants Class method. - ppt download

Hierarchies View Support for PHP

Extending View?

Master/fixed layout in Laravel.

OOP PHP Class