PHP REGULAR EXPRESSIONS QUIZ

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 : ?

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

8

10

7

9

TRUE ANSWER : ?
YOUR ANSWER : ?

What will be the output of the following PHP code? echo str_pad("Salad", 5)." is good.";

SaladSaladSaladSaladSalad is good

is good Salad

Salad is good

is good SaladSaladSaladSaladSalad

TRUE ANSWER : ?
YOUR ANSWER : ?

What will be the output of the following PHP code? $number = array(0,1,two,three,four,5); $num = preg_grep("/[0-5]/", $number); print_r($num);

Array([1]=> 1)

Array([2]=>two [3]=>three [4]=>four)

Array([0]=>0 [1]=>1 [5]=>5)

Array([0]=>0 [1]=>1 [2]=>two [3]=>three [4]=>four [5]=>5)

TRUE ANSWER : ?
YOUR ANSWER : ?

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

preg_matchall

preg_split

preg_match

preg_match_all

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 ( [1] => steak )

Array ( [0] => potatoes )

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

Array ( [3] => potatoes )

TRUE ANSWER : ?
YOUR ANSWER : ?

Parameter flags was added in which version of PHP?

PHP 4.2

PHP 4.0

PHP 4.1

PHP 4.3

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!";

Error

Username is all lowercase!

No Output is returned

Username must be all lowercase!

TRUE ANSWER : ?
YOUR ANSWER : ?

What will be the output of the following PHP code? $name = "What is your name?"; if (preg_match("/name/"),$name) echo "My name is Will Pitt "; else echo "My name is not Will Pitt "; if (preg_match("/are/")) echo "I am great"else echo "I am not great";

My name is not Will Pitt I am not great

My name is not Will Pitt I am great

My name is Will Pitt I am not great

My name is Will Pitt I am great

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

examians.com

contact@

TRUE ANSWER : ?
YOUR ANSWER : ?

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

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/>echo str_pad("Salad", 5)." is good.";

What will be the output of the following PHP code?<br/>$number = array(0,1,two,three,four,5);<br/>$num = preg_grep("/[0-5]/", $number);<br/>print_r($num);

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

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);

Parameter flags was added in which version of PHP?

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!";

What will be the output of the following PHP code?<br/>$name = "What is your name?";<br/>if (preg_match("/name/"),$name)<br/>echo "My name is Will Pitt ";<br/>else<br/>echo "My name is not Will Pitt ";<br/>if (preg_match("/are/"))<br/>echo "I am great"else echo "I am not great";

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