Which one of the following is the right way of defining a function in PHP Mcq?

Which of the following is right way to defining a function in PHP?

The declaration of a user-defined function start with the word function , followed by the name of the function you want to create followed by parentheses i.e. () and finally place your function’s code between curly brackets {} .

Which is the correct way to create a function in PHP?

The declaration of a user-defined function starts with the word function, followed by the name of the function you want to create followed by parentheses i.e. () and finally place your function’s code between curly brackets {}.

How do we define a function in PHP?

PHP functions are similar to other programming languages. A function is a piece of code which takes one more input in the form of parameter and does some processing and returns a value. … They are built-in functions but PHP gives you option to create your own functions as well.

Which of the following is the valid way to start a function in PHP?

A valid function name starts with a letter or underscore, followed by any number of letters, numbers, or underscores. As a regular expression, it would be expressed thus: ^[a-zA-Z_x80-xff][a-zA-Z0-9_x80-xff]*$ .

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Which is the right way to invoke a method?

8. Which one of the following is the right way to invoke a method? Explanation: “->” is a dynamic class method invocation in PHP.

What is the full form of PHP?

PHP (recursive acronym for PHP: Hypertext Preprocessor ) is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML.

What are PHP parameters?

A parameter is anything you pass to a function or method. It can be some value stored in a variable, or a literal value you pass on the fly. They are also known as arguments.

Which is the right way of declaring a variable in PHP?

A variable starts with the $ sign, followed by the name of the variable. A variable name must start with a letter or the underscore character. A variable name cannot start with a number. A variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ )

What is the main function of PHP?

PHP function is a piece of code that can be reused many times. It can take input as argument list and return value. There are thousands of built-in functions in PHP. In PHP, we can define Conditional function, Function within Function and Recursive function also.

What is define () in PHP?

PHP | defined() function

The PHP defined() function is an inbuilt function in PHP which checks whether a constant is exists or not, in other words, defined or not. Syntax: bool defined($constant_name);

What is use of define () in PHP?

The define() function defines a constant. Constants are much like variables, except for the following differences: A constant’s value cannot be changed after it is set. Constant names do not need a leading dollar sign ($) … Constant values can only be strings and numbers.

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