How do you define a function in PHP Mcq?
This set of PHP Multiple Choice Questions & Answers (MCQs) focuses on “Functions”. 1. How to define a function in PHP? Explanation: PHP allows us to create our own user-defined functions.
- <? php.
- function calc($price, $tax=””)
- $total = $price + ($price * $tax);
- echo “$total”;
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.
What is function defined Mcq?
Explanation: Functions are defined using the def keyword. After this keyword comes an identifier name for the function, followed by a pair of parentheses which may enclose some names of variables, and by the final colon that ends the line.
Why should we use function in PHP Mcq?
Why should we use functions? Functions provide reusability of code, easier to detect error, and easier to maintain.
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 is meant by PHP?
PHP is a server side scripting language. that is used to develop Static websites or Dynamic websites or Web applications. PHP stands for Hypertext Pre-processor, that earlier stood for Personal Home Pages. PHP scripts can only be interpreted on a server that has PHP installed.
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 the main benefit of using a function in PHP?
A key benefit of using functions is that they are reusable; if you have a task that needs to be performed a number of times, a function is an ideal solution. They can be either defined by you or by PHP (PHP has a rich collection of built-in functions).
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.
What are the two main types of function?
What are the two main types of functions? Explanation: Built-in functions and user defined ones.
What is Setattr () used for?
What is setattr() used for? The Python setattr() function sets a new specified value argument to the specified attribute name of a class/function’s defined object. This method provides an alternate means to assign values to class variables, in addition to constructors and object functions.
What is the difference between a function and a method Mcq?
Function — a set of instructions that perform a task. Method — a set of instructions that are associated with an object.