PHP REGULAR EXPRESSIONS QUIZ

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

1 and 2

None of the mentioned

All of the mentioned

3 and 4

TRUE ANSWER : ?
YOUR ANSWER : ?

Parameter flags was added in which version of PHP?

PHP 4.2

PHP 4.3

PHP 4.0

PHP 4.1

TRUE ANSWER : ?
YOUR ANSWER : ?

What will be the output of the following PHP code? $str = "Hello! My name is Cameron Fox. Coffee?"; $find = array('/is/','/coffee/'); $replace = array('/was/','/tea/'); echo preg_replace ($find, $replace, $str);

Hello! My name was Cameron Fox. tea?

Hello! My name was Cameron Fox. Coffee?

Hello! My name is Cameron Fox. tea?

Hello! My name is Cameron Fox. Coffee?

TRUE ANSWER : ?
YOUR ANSWER : ?

What will be the output of the following PHP code? $username = "jasoN"; if (ereg("([^a-z])",$username)) echo "Username must be all lowercase!"; else echo "Username is all lowercase!";

Username is all lowercase!

Error

Username must be all lowercase!

No Output is returned

TRUE ANSWER : ?
YOUR ANSWER : ?

POSIX stands for

Portable Operating System Interface for Unix

Portable Operating System Interface for Linux

Portative Operating System Interface for Unix

Portative Operating System Interface for Linux

TRUE ANSWER : ?
YOUR ANSWER : ?

What will be the output of the following PHP code? $url = "contact@examians.com"; echo ltrim(strstr($url, "@"),"@");

contact@examians.com

contact

contact@

examians.com

TRUE ANSWER : ?
YOUR ANSWER : ?

Which among the following is/are not a metacharacter? 1. /a 2. /A 3. /b 4. /B

2 and 4

1 and 3

Only 1

2, 3 and 4

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 ( [3] => potatoes )

Array ( [1] => steak )

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

Array ( [0] => potatoes )

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following would be a potential match for the Perl-based regular expression /fo{2,4}/ ? 1. fol 2. fool 3. fooool 4. fooooool

1, 3 and 4

Only 1

1 and 4

2 and 3

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_find()

preg_replace()

preg_find_replace()

preg_findre()

TRUE ANSWER : ?
YOUR ANSWER : ?

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()

Parameter flags was added in which version of PHP?

What will be the output of the following PHP code?<br/>$str = "Hello! My name is Cameron Fox. Coffee?";<br/>$find = array('/is/','/coffee/');<br/>$replace = array('/was/','/tea/');<br/>echo preg_replace ($find, $replace, $str);

What will be the output of the following PHP code?<br/>$username = "jasoN";<br/>if (ereg("([^a-z])",$username))<br/>echo "Username must be all lowercase!";<br/>else<br/>echo "Username is all lowercase!";

POSIX stands for

What will be the output of the following PHP code?<br/>$url = "contact@examians.com";<br/>echo ltrim(strstr($url, "@"),"@");

Which among the following is/are not a metacharacter?<br/>1. /a<br/>2. /A<br/>3. /b<br/>4. /B

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 of the following would be a potential match for the Perl-based regular expression /fo{2,4}/ ?<br/>1. fol<br/>2. fool<br/>3. fooool<br/>4. fooooool

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