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PHP Practice Test 68

# Mathematical Constants Test Questions PDF - 68

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## PHP Tests Online: Mathematical Constants Quiz - 68

MCQ: Which mathematical constant notation is used for square root?

A) sqr ( )
B) sqrt (2)
C) 1/sqrt ( )
D) None of them

MCQ: PHP is different from other languages because variables do not have to be

A) Bounded
B) Declared before being assigned
C) Character type
D) Integer type

MCQ: By using special wildcards for matching a string which function is used?

A) Strtok
B) Tokenizing
C) Delimiter
D) Regex

MCQ: For getting rid of an assigned variable in an array which function is used?

A) delete_array ( )
B) reset_array
C) reset ( )
D) unset ( )

MCQ: In Perl-compatible patterns any pattern that is followed by ? this means that

A) Match this pattern 1 or more times
B) Match this pattern exactly 1 time
C) Match this pattern 0 times
D) None of them

### Mock Tests: PHP Course Prep

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