What are the 3 scope levels available in PHP and how would you define them?
Submitted by: Muhammad☛ Private - Visible only in its own class
☛ Public - Visible to any other code accessing the class
☛ Protected - Visible only to classes parent(s) and classes that extend the current class
This is important for any developer to know because it shows an understanding that building applications is more than just being able to write code. One must also have an understanding about privileges and accessibility of that code. There are times protected variables or methods are extremely important, and an understanding of scope is needed to protect the integrity of the data in your application along with provide a clear path through the code.
Submitted by: Muhammad
☛ Public - Visible to any other code accessing the class
☛ Protected - Visible only to classes parent(s) and classes that extend the current class
This is important for any developer to know because it shows an understanding that building applications is more than just being able to write code. One must also have an understanding about privileges and accessibility of that code. There are times protected variables or methods are extremely important, and an understanding of scope is needed to protect the integrity of the data in your application along with provide a clear path through the code.
Submitted by: Muhammad
Read Online Sr. PHP Programmer Job Interview Questions And Answers
Top Sr. PHP Programmer Questions
☺ | What are the 3 scope levels available in PHP and how would you define them? |
☺ | What is the purpose of $_PHP_SELF variable in PHP? |
☺ | What is the purpse $_PHP_SELF variable? |
☺ | Can the value of a constant change during the script's execution? |
☺ | What is the purpose of _CLASS_ constant? |
Top Coding/Programming Categories
☺ | Python Interview Questions. |
☺ | OOP Interview Questions. |
☺ | Software engineering Interview Questions. |
☺ | PHP Interview Questions. |
☺ | VBA (Visual Basic for Applications) Interview Questions. |