PHP REGULAR EXPRESSIONS QUIZ

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

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

TRUE ANSWER : ?
YOUR ANSWER : ?

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

preg_found

preg_find

preg_search

preg_match

TRUE ANSWER : ?
YOUR ANSWER : ?

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

is good Salad

is good SaladSaladSaladSaladSalad

Salad is good

SaladSaladSaladSaladSalad is good

TRUE ANSWER : ?
YOUR ANSWER : ?

Parameter flags was added in which version of PHP?

PHP 4.1

PHP 4.3

PHP 4.2

PHP 4.0

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following preg PHP functions is used to take a string, and put it in an array?

preg_destroy()

preg_split()

preg_unchain()

preg_divide()

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Array([1]=> 1)

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

TRUE ANSWER : ?
YOUR ANSWER : ?

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

p#

P?

p*

p+

TRUE ANSWER : ?
YOUR ANSWER : ?

POSIX implementation was deprecated in which version of PHP?

PHP 4

PHP 5.2

PHP 5

PHP 5.3

TRUE ANSWER : ?
YOUR ANSWER : ?

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

preg_matchall

preg_match

preg_split

preg_match_all

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 and 4

Only 1

1, 3 and 4

2 and 3

TRUE ANSWER : ?
YOUR ANSWER : ?

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 functions is used to search a string?

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

Parameter flags was added in which version of PHP?

Which one of the following preg PHP functions is used to take a string, and put it in an array?

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);?

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

POSIX implementation was deprecated in which version of PHP?

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

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