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()

None of the mentioned

1 and 2

3 and 4

All of the mentioned

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Parameter flags was added in which version of PHP?

PHP 4.2

PHP 4.1

PHP 4.3

PHP 4.0

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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!";

Username is all lowercase!

Error

Username must be all lowercase!

No Output is returned

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[:alpha:] can also be specified as.

[A-za-z]

[A-z]

[A-Za-z0-9]

[a-z]

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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. Coffee?

Hello! My name is Cameron Fox. Coffee?

Hello! My name was Cameron Fox. tea?

Hello! My name is Cameron Fox. tea?

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Which one of the following functions will convert a string to all uppercase?

uppercase()

str_uppercase()

struppercase()

strtoupper()

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

9

10

8

7

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

2, 3 and 4

1 and 3

Only 1

2 and 4

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What will be the output if we replace the line $num = preg_grep(“/[0-5]/”, $number); with $num = preg_grep(“/[0-5]/”, $number, PREG_GREP_INVERT);?

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

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

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

Array([1]=> 1)

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

examians.com

contact@

contact

contact@examians.com

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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/>$username = "jasoN";<br/>if (ereg("([^a-z])",$username))<br/>echo "Username must be all lowercase!";<br/>else<br/>echo "Username is all lowercase!";

[:alpha:] can also be specified as.

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);

Which one of the following functions will convert a string to all uppercase?

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

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 if we replace the line $num = preg_grep(“/[0-5]/”, $number); with $num = preg_grep(“/[0-5]/”, $number, PREG_GREP_INVERT);?

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