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PHP Regular Expressions

PHP Regular Expressions
POSIX implementation was deprecated in which version of PHP?

PHP 5.3
PHP 4
PHP 5
PHP 5.2

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

1 and 4
1 and 2
2 and 3
2 and 4

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

concat()
explode()
concatenate()
implode()

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

2, 3 and 4
Only 1
1 and 3
2 and 4

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

preg_match
preg_split
preg_match_all
preg_matchall

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

uppercase()
struppercase()
str_uppercase()
strtoupper()

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