Does &$this is really disallowed to use anywhere?

Related Posts:

1. What does ‘super’ do in Python? – difference between super().__init__() and explicit superclass __init__()
2. What is Inversion of Control?
3. What is an example of the Liskov Substitution Principle?
4. What __init__ and self do in Python?
5. When should you use a class vs a struct in C++?
6. C++ error ‘Undefined reference to Class::Function()’ [duplicate]
7. What’s the difference between a method and a function?
8. How do I implement interfaces in python?
9. What is polymorphism, what is it for, and how is it used?
10. java – invalid method declaration; return type required [duplicate]
11. java – invalid method declaration; return type required
12. Is C++ an Object Oriented language?
13. Difference between abstraction and encapsulation?
14. What are metaclasses in Python?
15. extends class and implements interface in java
16. What is a “driver class”?
17. What is difference between functional and imperative programming languages?
18. How can I create a copy of an object in Python?
19. What is polymorphism in Javascript?
20. When should I be using classes in Python?
21. How to create a subclass in C#?
22. How would one write object-oriented code in C?
23. How to get a JavaScript object’s class?
24. Inheritance vs. Aggregation [closed]
25. What is the difference between an Instance and an Object?
26. What does ‘low in coupling and high in cohesion’ mean
27. What is an example of the Single Responsibility Principle?
28. Will WordPress become completely OOP?
29. How to name files of namespaced classes?
30. What is the best way to instantiate a class of a plugin in your WordPress theme?
31. problem with implementing widget via the_content()
32. Load classes using spl_autoload_register
33. UML diagrams of WordPress
34. Trying to get property of non-object
35. Static vs Dynamic methods in WordPress
36. Autoloader not finding classes from my plugin
37. WordPress plugin activation, deactivation and uninstall hook not being triggered
38. Integration tests test script enqueue/register fails
39. Error of “Call a member function on non object” while var_dump get correct result
40. How pass args to wp_list_comments callback?
41. Don’t filters violate the a class’ local variables visibility rules?
42. Admin submenu does not call function to load the page
43. Using Geo Data Store Plugin Code
44. How to wait for WordPress Core to load when writing OOP?
45. OOP – from plugin add new object and call static method in another file
46. How to get parameters with add_filter with a static method?
47. What’s the best way to search for a UPC code in a Database?
48. What is the purpose of the word ‘self’?
49. Understanding Python super() with __init__() methods [duplicate]
50. Difference between Inheritance and Composition
51. What is the difference between private and protected members of C++ classes?
52. Reading from file in c++ ifstream
53. Optimum way to compare strings in JavaScript?
54. What is copy-on-write?
55. Are static class variables possible in Python?
56. What is the purpose of the “role” attribute in HTML?
57. Difference between virtual and abstract methods
58. How can you profile a Python script?
59. Separating class code into a header and cpp file
60. Cleanest way to copy a constant size array in c++11
61. What is a mixin, and why are they useful?
62. Error at constructor : Expected an identifier?
63. How to efficiently remove duplicates from an array without using Set
64. Big O, how do you calculate/approximate it?
65. Prefer composition over inheritance?
66. What is Serialization?
67. Error “C++ requires a type specifier for all declarations whilst defining methods”
68. C++ BlackJack Stuck trying to program Ace
69. What are the differences between struct and class in C++?
70. What is the meaning of single and double underscore before an object name?
71. How to sort a list of objects based on an attribute of the objects?
72. When should I use ‘self’ over ‘$this’?
73. Why is Fetch task in Hive works faster than Map-only task?
74. How to implement a binary search tree in Python?
75. Already defined in .obj – no double inclusions
76. Polymorphism vs Overriding vs Overloading
77. fatal error LNK1169: one or more multiply defined symbols found in game programming
78. How to call a parent class function from derived class function?
79. Python function overloading
80. Meaning of @classmethod and @staticmethod for beginner?
81. Meaning of @classmethod and @staticmethod for beginner?
82. What is the difference between object-oriented languages and non object-oriented languages?
83. Most efficient way to increment a Map value in Java
84. Image rotation algorithm
85. An object reference is required to access a non-static member
86. When to use ‘raise NotImplementedError’?
87. Why do some classes require main methods and others do not?
88. What is the syntax for accessing PHP object properties?
89. What is method hiding in Java? Even the JavaDoc explanation is confusing
90. Can you pass-by-reference in R?
91. Pass arguments to Constructor in VBA
92. Why use getters and setters/accessors?
93. JavaScript pattern for multiple constructors
94. Why is there no multiple inheritance in Java, but implementing multiple interfaces is allowed?
95. How do you implement a class in C?
96. What’s wrong with overridable method calls in constructors?
97. Does ECMAScript 6 have a convention for abstract classes?
98. Fields in interfaces
99. When/why to make function private in class?
100. jQuery creating objects [duplicate]