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 : ?

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

concatenate()

explode()

implode()

concat()

TRUE ANSWER : ?
YOUR ANSWER : ?

POSIX implementation was deprecated in which version of PHP?

PHP 5

PHP 5.3

PHP 5.2

PHP 4

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YOUR ANSWER : ?

Which one of the following functions finds the last occurrence of a string, returning its numerical position?

strlast()

strlastpos()

strpos()

strrpos()

TRUE ANSWER : ?
YOUR ANSWER : ?

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

9

8

7

10

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

Array([1]=> 1)

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

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

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

Only 1

1, 3 and 4

1 and 4

2 and 3

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following functions is used to search a string?

preg_found

preg_search

preg_find

preg_match

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. Coffee?

Hello! My name is Cameron Fox. tea?

Hello! My name was Cameron Fox. tea?

Hello! My name is Cameron Fox. Coffee?

TRUE ANSWER : ?
YOUR ANSWER : ?

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

is good Salad

SaladSaladSaladSaladSalad is good

is good SaladSaladSaladSaladSalad

Salad is good

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()

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

POSIX implementation was deprecated in which version of PHP?

Which one of the following functions finds the last occurrence of a string, returning its numerical position?

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

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 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 functions is used to search a string?

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