PHP Questions and Answers – String – Part 1
This collection of PHP Multiple Choice Questions and Answers (MCQs): Quizzes & Practice Tests with Answer focuses on “String”.
1. A sequence of characters that is processed as a unit is called ______
A Arrays
B Functions
C Methods
D Strings
D
A sequence of characters that is processed as a unit is called Strings.
2. How many approaches you can use to create a string in PHP?
A 1
B 2
C 3
D 4
B
There are two approaches you can use to create a string in PHP: single quote and double quote. Example:
$str1 = 'Welcome to StackHowTo!';
$str2 = "Welcome to StackHowTo!";
3. Which kind of string can treats special characters inside quotes?
A Single quote string
B Double quote string
C Both A and B
D None of the above
B
Double-quote strings in PHP is capable of treating special characters. Example:
echo("Welcome to StackHowTo!\n");
echo('Welcome to StackHowTo!\n');
Output:
Welcome to StackHowTo! Welcome to StackHowTo!\n
4. Which is not a Built-in function for string in PHP?
A strpos()
B strreverse()
C str_replace()
D strlen()
B
strreverse() is not a Built-in function for string in PHP.
5. What’s the use of trim() function in PHP?
A to remove underscore
B to remove uppercase alphabet
C to remove lowercase alphabet
D to remove whitespaces
D
trim() function is used to remove whitespaces or strings from both sides of a string.
6. What is the result of the following PHP code?
<?php
echo strpos("Welcome to StackHowTo!", "to"), " \n";
?>
A 7
B 6
C 8
D 20
C
strpos() function used to locate the position of the first occurrence of a substring in a string.
7. If you want to compare two strings which of the following function can be used?
A strcspn()
B strspn()
C strcasecmp()
D strcmp()
A, B, C, D
All of the above functions can be used to compare two strings in PHP.
8. Which of the following function used to convert a string to uppercase?
A uppercase()
B str_uppercase()
C strtoupper()
D struppercase()
C
strtoupper() function used to convert a string to uppercase. Example:
<?php
echo strtoupper("Welcome to StackHowTo!");
// Output: WELCOME TO STACKHOWTO!
?>
9. Which of the following functions can be used to concatenate array elements to a single string?
A explode()
B implode()
C concat()
D concatenate()
B
implode() function is used to concatenate array elements to a single string. Example:
<?php
$arr = array('Welcome','to','StackHowTo!');
echo implode(" ",$arr);
?>
Output:
Welcome to StackHowTo!
10. What is the result of the following PHP code?
<?php
$url = "adm[email protected]";
echo ltrim(strstr($url, "@"),"@");
?>
A admin
B stackhowto.com
D @stackhowto.com
B
The strstr() function returns the rest of a string beginning with the first occurrence of a predefined string.
- PHP MCQ – Multiple Choice Questions and Answers – Basics – Part 1
- PHP MCQ – Multiple Choice Questions and Answers – Basics – Part 2
- PHP MCQ – Multiple Choice Questions and Answers – Basics – Part 3
- PHP Questions and Answers – Functions – Part 1
- PHP Questions and Answers – Functions – Part 2
- PHP Questions and Answers – Arrays – Part 1
- PHP Questions and Answers – Arrays – Part 2
- PHP Questions and Answers – Arrays – Part 3
- PHP Questions and Answers – Arrays – Part 4
- PHP Questions and Answers – Object-Oriented OOP – Part 1
- PHP Questions and Answers – Object-Oriented OOP – Part 2
- PHP Questions and Answers – Object-Oriented OOP – Part 3
- PHP Questions and Answers – String – Part 1
- PHP Questions and Answers – String – Part 2
- PHP Questions and Answers – Regular Expressions
- PHP Questions and Answers – Exception Handling