⟩ Tell me what Is The Difference Between Null And Undefined?
null is an object with no value. undefined is a type.
typeof null; // "object"
typeof undefined; // "undefined"
null is an object with no value. undefined is a type.
typeof null; // "object"
typeof undefined; // "undefined"
What are the rules for determine the "truth" of any value not already of the Boolean type?
What are SQL Injections, how do you prevent them and what are the best practices?
How should we parse HTML in PHP?
What is Object Oriented Programming in PHP context?
How to find the download size of a file?
What are getters and setters and why are they important?
What is the purpose of constant() function?
How will you send an email using PHP?
How preg_match() function works?
How to delete a file from the system?