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PHP Regular Expressions

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

preg_divide()
preg_split()
preg_destroy()
preg_unchain()

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PHP Regular Expressions
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
1, 3 and 4
Only 1
2 and 3

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

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

9
10
7
8

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PHP Regular Expressions
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!";

No Output is returned
Error
Username must be all lowercase!
Username is all lowercase!

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

preg_match
preg_matchall
preg_match_all
preg_split

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MORE MCQ ON PHP Regular Expressions

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