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

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Q. Which among the following is/are not a metacharacter?

i) \a
ii) \A
iii) \b
iv) \B

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Q. Which of the following would be a potential match for the Perl-based regular expression /fo{2,4}/ ?

i) fol
ii) fool
iii) fooool
iv) fooooool

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Q. POSIX stands for

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Q. POSIX implementation was deprecated in which version of PHP?

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

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Q. [:alpha:] can also be specified as..

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

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Q. PHP has long supported two regular expression implementations known as _______ and _______

i) Perl
ii) PEAR
iii) Pearl
iv) POSIX

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Q. Operator that is used for heredoc syntax

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Q. Strstr ( ) function selects a substring by its

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Q. Which syntax is very useful for specifying large chunks of interpolated variable text?

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Q. Which three functions has intimate relationship with each other?

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Q. Function Strcmp ( ) is equals to

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Q. How many operators PHP offer for strings?

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Q. Dot ". " operator in strings are called as

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Q. PHP offers printf ( ) and

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Q. Strtupper ( ) function returns

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Q. Which function takes a single string and returns its length as an integer?

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Q. Which function start its search from backward rather than from beginning?

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