PHP String MCQs

11. Predict the output of the following code snippet :

<?php
$str="chess was played";
echo strlen(substr($str,3,2))."
"
?>

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

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12. Predict the output of the following code snippet :

<?php
echo count_chars("AA",1);
?>

A. 2
B. [65]=>2
C. Array
D. None of the above

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13. A variable $str is set to "HELLO WORLD", which of the following script returns it title case?

A. echo ucwords($str)
B. echo ucwords(strtolower($str)
C. echo ucfirst($str)
D. echo ucfirst(strtolower($str)

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14. The PHP function searches for a specific text within a string.

A. strpos()
B. strposition()
C. strrev()
D. str_replace()

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15. Which function is used to Calculate a 32-bit CRC for a string?

A. crc32()
B. crypt()
C. heb32()
D. heb32c()

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16. What is the use of htmlentities() function in php?

A. Converts characters to HTML entities
B. Converts HTML entities to characters
C. Converts some predefined HTML entities to characters
D. Converts some predefined characters to HTML entities

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17. How many functions does PHP offer for searching and modifying strings using Perl-compatible regular expressions.

A. 7
B. 8
C. 9
D. 10

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18. What will be the output of the following PHP code?

<?php 
    $title = "O malley wins the heavyweight championship!";
    echo ucwords($title);
?>

A. O Malley Wins The Heavyweight Championship!
B. O malley Wins The Heavyweight Championship!
C. O Malley wins the heavyweight championship!
D. o malley wins the heavyweight championship!

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19. What will be the output of the following PHP code?

<?php 
   $url = "lfc123456@example.com";
   echo ltrim(strstr($url, "@"),"@");
?>

A. lfc123456@example.com
B. lfc123456
C. lfc123456@
D. example.com

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20. How many functions does PHP offer for searching strings using POSIX style regular expression?

A. 7
B. 8
C. 9
D. 10

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