PHP REGULAR EXPRESSIONS QUIZ

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

implode()

concatenate()

concat()

explode()

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 ( [3] => potatoes )

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

Array ( [1] => steak )

Array ( [0] => potatoes )

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. tea?

Hello! My name is Cameron Fox. tea?

Hello! My name was Cameron Fox. Coffee?

Hello! My name is Cameron Fox. Coffee?

TRUE ANSWER : ?
YOUR ANSWER : ?

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

preg_match_all

preg_match

preg_split

preg_matchall

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

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

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

Array([1]=> 1)

TRUE ANSWER : ?
YOUR ANSWER : ?

What will be the output of the following PHP code? $text = "this istsome text thatnwe might like to parse."; print_r(split("[nt]",$text));

[0] => this is [1] => some text that [2] => we might like to parse.

Array ( [0] => this is [1] => some text that [2] => we might like to parse. )

Array ( [0] => some text that [1] => we might like to parse. )

this is some text that we might like to parse.

TRUE ANSWER : ?
YOUR ANSWER : ?

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

9

10

8

7

TRUE ANSWER : ?
YOUR ANSWER : ?

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

8

9

7

10

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 must be all lowercase!

Username is all lowercase!

No Output is returned

TRUE ANSWER : ?
YOUR ANSWER : ?

What will be the output of the following PHP code? $line = "You like dogs. I hate dogs. We should marry." $sen = preg_split('/./', $line); print_r($sen);

Array([0]=>You like dogs. I hate dogs. We should marry.)

Array([0]=>You like dogs. [1]=>I hate dogs. [2]=>We should marry.)

Error

You like dogs. I hate dogs. We should marry.

TRUE ANSWER : ?
YOUR ANSWER : ?

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

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);

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 is not a preg PHP function?

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);

What will be the output of the following PHP code?<br/>$text = "this istsome text thatnwe might like to parse.";<br/>print_r(split("[nt]",$text));

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

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/>$username = "jasoN";<br/>if (ereg("([^a-z])",$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/>$line = "You like dogs. I hate dogs. We should marry."<br/>$sen = preg_split('/./', $line);<br/>print_r($sen);