PHP REGULAR EXPRESSIONS QUIZ

PHP has long supported two regular expression implementations known as _ and _. 1. Perl 2. PEAR 3. Pearl 4. POSIX

2 and 4

2 and 3

1 and 2

1 and 4

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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!";

Error

Username must be all lowercase!

Username is all lowercase!

No Output is returned

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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

Only 1

2 and 3

1 and 4

1, 3 and 4

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What will be the output of the following PHP code? $text = "this istsome text thatnwe might like to parse."; print_r(split("[nt]",$text));

Array ( [0] => this is [1] => some text that [2] => we might like to parse. )

this is some text that we might like to parse.

Array ( [0] => some text that [1] => we might like to parse. )

[0] => this is [1] => some text that [2] => we might like to parse.

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

Array ( [0] => potatoes )

Array ( [3] => potatoes )

Array ( [1] => steak )

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

contact@

contact

examians.com

contact@examians.com

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POSIX implementation was deprecated in which version of PHP?

PHP 5.2

PHP 5

PHP 4

PHP 5.3

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

preg_split

preg_match

preg_match_all

preg_matchall

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

p*

P?

p#

p+

TRUE ANSWER : ?
YOUR ANSWER : ?

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

10

7

8

9

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PHP has long supported two regular expression implementations known as _ and _.<br/>1. Perl<br/>2. PEAR<br/>3. Pearl<br/>4. POSIX

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!";

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

What will be the output of the following PHP code?<br/>$text = "this istsome text thatnwe might like to parse.";<br/>print_r(split("[nt]",$text));

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);

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

POSIX implementation was deprecated in which version of PHP?

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

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

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