PHP Quiz

Full form of PHP is______

• Hypertext Preprocessor

• 
  Pretext Hypertext Preprocessor

• Processor Hypertext Processor

• None of the above

Answer explanation

The full form of PHP is Hypertext Preprocessor, earlier it was called Personal Home Page, So the answer is Option A. PHP is called Hypertext Preprocessor because it is well documented and Open source means anyone can download it without any paying cost.

The default file extension in PHP are ____

• .php

• .css

• .js

• .html

Which of the following is the correct way to declare the constant in PHP?

• const

• define

• var

• let

Answer explanation

The define is a function in PHP that is used to declare the constant define take 3 parameters like name, value, and check the case_sensative. So the correct way to declare the constant in PHP is to define.

How does the name of the variable in PHP starts?

• Sign !

• 
  Sign $

• 
  Sign &

• Sign #

Answer explanation

The name of the variable in PHP starts with the Sign $ example: the syntax for initializing variable $a=20; Here a is variable followed by $ sign.

Which of the following is the syntax of comment in PHP?

• /* */

• #

• //

• All of the above

Answer explanation

There are 3 ways to write comments in PHP. /* / is a multiline comment you can comment as: / This is a multiple line comment /*, # This is a single-line comment in PHP and this is also // a single line comment you can write as // This is a single-line comment.

If you want to add write the PHP code which of the below code editor is used?

• Notepad++

• Sublime

• Visual code

• All of the above

Answer explanation

Notepad ++, Sublime Text, and Visual code. These three are most used for writing the PHP script. These all are code editors 

Which of the below method is used to generate the unique id in Php?

• unique()

• 
  id()

• mid()

• None of the above

Answer explanation

The unique id is a function in PHP that is responsible for the generation of a unique id at some millisecond time. It doesn't guarantee the return value .unique id takes 2 parameter prefixes and more_entropy. And it supports in PHP 4+ version.

Which of the following is the correct way to concatenate the two strings in PHP?

• .

• +

• Append

• All of the above

Answer explanation

Concatenation is used for adding the two strings with the help of. (dot symbol) in PHP.

Which of the below is the correct syntax for opening the given file in PHP?

"students.txt"

• fopen("students.txt", "r");

• 
  fopen("students.txt", "w");

• fopen("students.txt", "read");

• 
  fopen("students.txt");

Answer explanation

The correct syntax for opening the file in PHP is fopen("students.txt", "r"); where r represents the reading mode of the file and "students.txt" is the name of the file. 

Which of the below function display the configuration in PHP?

• php_display()

• phpinfo()

• info_config()

• None of the above

Answer explanation

The phpinfo() function is used to display the configuration in PHP. It also returns the compiled information about PHP.