PHP REGULAR EXPRESSIONS QUIZ

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

10

8

7

9

TRUE ANSWER : ?
YOUR ANSWER : ?

What will be the output of the following PHP code? $foods = array("pasta", "steak", "fish", "potatoes"); $food = preg_grep("/^s/", $foods); print_r($food);

Array ( [0] => potatoes )

Array ( [1] => steak )

Array ( [0] => pasta [1] => steak [2] => fish [3] => potatoes )

Array ( [3] => potatoes )

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following is not a preg PHP function?

preg_match

preg_split

preg_matchall

preg_match_all

TRUE ANSWER : ?
YOUR ANSWER : ?

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

8

7

10

9

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following functions can be used to concatenate array elements to form a single delimited string?

implode()

explode()

concatenate()

concat()

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following regular expression matches any string containing zero or one p?

p#

P?

p+

p*

TRUE ANSWER : ?
YOUR ANSWER : ?

Say we have two compare two strings which of the following function/functions can you use? 1. strcmp() 2. strcasecmp() 3. strspn() 4. strcspn()

All of the mentioned

None of the mentioned

1 and 2

3 and 4

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following preg PHP function is used to do a find and replace on a string or an array?

preg_findre()

preg_find_replace()

preg_replace()

preg_find()

TRUE ANSWER : ?
YOUR ANSWER : ?

What will be the output of the following PHP code? $author = "nachiketh@example.com"; $author = str_replace("a","@",$author); echo "Contact the author of this article at $author.";

Contact the author of this article at n@chiketh@ex@mple.com

Error

Contact the author of this article at nachiketh@ex@mple.com

Cont@ct the @uthor of this @rticle @t n@chiketh@ex@mple.com

TRUE ANSWER : ?
YOUR ANSWER : ?

[:alpha:] can also be specified as.

[a-z]

[A-z]

[A-za-z]

[A-Za-z0-9]

TRUE ANSWER : ?
YOUR ANSWER : ?

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

What will be the output of the following PHP code?<br/>$foods = array("pasta", "steak", "fish", "potatoes");<br/>$food = preg_grep("/^s/", $foods);<br/>print_r($food);

Which one of the following is not a preg PHP function?

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

Which one of the following functions can be used to concatenate array elements to form a single delimited string?

Which one of the following regular expression matches any string containing zero or one p?

Say we have two compare two strings which of the following function/functions can you use?<br/>1. strcmp()<br/>2. strcasecmp()<br/>3. strspn()<br/>4. strcspn()

Which one of the following preg PHP function is used to do a find and replace on a string or an array?

What will be the output of the following PHP code?<br/>$author = "nachiketh@example.com";<br/>$author = str_replace("a","@",$author);<br/>echo "Contact the author of this article at $author.";

[:alpha:] can also be specified as.