PHP Constants Aptitude Questions and Answers

PHP Constants Aptitude Questions and Answers: This section contains aptitude questions and answers on PHP Constants.
Submitted by Nidhi, on May 23, 2020

This section contains Aptitude Questions and Answers on PHP Constants.

1) There are the following statements that are given below, which of them are correct about constants in PHP?
  1. Constants are just like variables, but its value cannot be changed.
  2. A valid constant name starts with an alphabet or underscore.
  3. There is no need to use the '$' symbol with constants.
  4. All the above

Options:

  1. A and B
  2. B and C
  3. A and C
  4. D

2) Which of the following function is used to define a constant in PHP?
  1. defconst()
  2. define()
  3. const()
  4. def()

3) Can we create a case-sensitive constant in PHP?
  1. Yes
  2. No

4) What is the correct output of the given code snippets?
<?php
	define("COUNTRY", "INDIA");
	echo COUNTRY;
?>
  1. INDIA
  2. COUNTRY
  3. Garbage value
  4. Error

5) What is the correct output of the given code snippets?
<?php
	define("COUNTRY", "INDIA");
	echo country;
?>
  1. INDIA
  2. country
  3. Garbage value
  4. Error

6) What is the correct output of the given code snippets?
<?php
	define("COUNTRY", "INDIA",true);
	echo country;
?>
  1. INDIA
  2. country
  3. Garbage value
  4. Error

7) What is the correct output of the given code snippets?
<?php
	define("COUNTRY", "INDIA",true);
	{
    		define("COUNTRY", "BHARAT",true);
	    	echo country;
    	}
?>
  1. INDIA
  2. country
  3. BHARAT
  4. Error

8) What is the correct output of the given code snippets?
<?php
	define("COUNTRY", "INDIA",true);
	{
    		redefine("COUNTRY", "BHARAT",true);
    		echo country;
    	}
?>
  1. INDIA
  2. country
  3. BHARAT
  4. Error

9) What is the correct output of the given code snippets?
<?php
	define("COUNTRIES", {"INDIA","AUSTRALIA","USA"});
	echo COUNTRIES[1];    
?>
  1. INDIA
  2. AUSTRALIA
  3. Error
  4. Garbage value

10) What is the correct output of the given code snippets?
<?php
	define("COUNTRIES", ["INDIA","AUSTRALIA","USA"]);
	echo COUNTRY[1];    
?>
  1. INDIA
  2. AUSTRALIA
  3. 0
  4. Error

11) What is the correct output of the given code snippets?
<?php
	define("COUNTRIES", ["INDIA","AUSTRALIA","USA"]);
	echo COUNTRIES[1];    
?>
  1. INDIA
  2. AUSTRALIA
  3. 0
  4. Error

12) What is the correct output of the given code snippets?
<?php
	define("COUNTRY", "INDIA");
	
    	function fun()
    	{
    		echo COUNTRY;    
    	}
?>
  1. INDIA
  2. 0
  3. Error
  4. None of the above

13) What is the correct output of the given code snippets?
<?php
    define("COUNTRY", "INDIA");
    
    function fun()
    {
        echo COUNTRY;    
    }
    
    fun();
?>
  1. INDIA
  2. 0
  3. Error
  4. None of the above

14) What is the correct output of the given code snippets?
<?php
	define("COUNTRY", "INDIA");
	
    	function fun()
    	{
    		define("COUNTRY", "USA");
	    	echo COUNTRY;    
    	}
    
	fun();
?>
  1. INDIA
  2. USA
  3. Error
  4. None of the above

15) What is the correct output of the given code snippets?
<?php
	define("POLICE", 100);
	
    	function fun()
    	{
    		echo POLICE;    
    	}
    
    	fun();
?>
  1. 100
  2. POLICE
  3. Error
  4. None of the above






Comments and Discussions

Ad: Are you a blogger? Join our Blogging forum.





Languages: » C » C++ » C++ STL » Java » Data Structure » C#.Net » Android » Kotlin » SQL
Web Technologies: » PHP » Python » JavaScript » CSS » Ajax » Node.js » Web programming/HTML
Solved programs: » C » C++ » DS » Java » C#
Aptitude que. & ans.: » C » C++ » Java » DBMS
Interview que. & ans.: » C » Embedded C » Java » SEO » HR
CS Subjects: » CS Basics » O.S. » Networks » DBMS » Embedded Systems » Cloud Computing
» Machine learning » CS Organizations » Linux » DOS
More: » Articles » Puzzles » News/Updates


© https://www.includehelp.com some rights reserved.