PHP String MCQs

This section focuses on "String" in PHP. These Multiple Choice Questions (mcq) should be practiced to improve the PHP skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations.

1. In how many ways we can create strings in PHP?

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

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2. Which type of string can processes special characters inside quotes?

A. single quote string
B. double quote string
C. Both A and B
D. None of the above

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3. Which of the following is not a Built-in String functions in php?

A. strlen()
B. str_replace()
C. strpos()
D. strreverse()

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4. Why trim() function is used in php?

A. to remove whitespaces
B. to remove lowercase alphabet
C. to remove uppercase alphabet
D. to remove underscore

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5. Which of the following is the output of the below code?

<?php 
  
echo strpos("Hello letsfindcourse!", "lets"), " \n"; 
    
?>

A. 4
B. 5
C. 6
D. 7

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6. Which of the following is the output of the below code?

<?php 
  
var_dump(strpos("Hello letsfindcourse!", "course")); 
    
?>

A. int(13)
B. char(14)
C. int(14)
D. int(15)

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7. Which is true about var_dump() function?

A. var_dump() loops infinitely
B. var_dump() cuts off loop afetr getting same element two times
C. var_dump() cuts off loop after getting the same element three times
D. var_dump() cuts off loop after getting the same element five times

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8. The ________ function compares the two strings s1 and s2, ignoring the case of the characters.

A. strtolower()
B. toLowerCase()
C. strcasecmp()
D. lc()

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9. Returns a string arguments with trilling blank space removed, is a behavior of

A. starts( ) function
B. chop( ) function
C. rtrim( ) function
D. lc()

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10. What is the output of the following php code?

<?php
    $username = "letsfindcourse";
    if (preg_match("([^a-z])",$username))
        echo "Name must be all lowercase!";
    else
        echo "Name is all lowercase!";
    ?>

A. Error
B. No Output
C. Name must be all lowercase!
D. Name is all lowercase!

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