PHP REGULAR EXPRESSIONS QUIZ

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

2 and 3

1, 3 and 4

1 and 4

Only 1

TRUE ANSWER : ?
YOUR ANSWER : ?

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

str_uppercase()

struppercase()

strtoupper()

uppercase()

TRUE ANSWER : ?
YOUR ANSWER : ?

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

examians.com

contact

contact@examians.com

contact@

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_split()

preg_destroy()

preg_divide()

preg_unchain()

TRUE ANSWER : ?
YOUR ANSWER : ?

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

strlast()

strpos()

strrpos()

strlastpos()

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

Array([1]=> 1)

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

TRUE ANSWER : ?
YOUR ANSWER : ?

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

2 and 3

1 and 2

2 and 4

1 and 4

TRUE ANSWER : ?
YOUR ANSWER : ?

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

is good SaladSaladSaladSaladSalad

Salad is good

is good Salad

SaladSaladSaladSaladSalad is good

TRUE ANSWER : ?
YOUR ANSWER : ?

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

2 and 4

Only 1

1 and 3

2, 3 and 4

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 is Cameron Fox. tea?

Hello! My name was Cameron Fox. Coffee?

Hello! My name was Cameron Fox. tea?

Hello! My name is Cameron Fox. Coffee?

TRUE ANSWER : ?
YOUR ANSWER : ?

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 will convert a string to all uppercase?

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

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

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

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);?

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

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 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);