Mathematical Constants Multiple Choice Questions (MCQ) PDF - 68

MCQ 336: Which mathematical constant notation is used for square root?

1. sqr ( )
2. sqrt (2)
3. 1/sqrt ( )
4. None of them

MCQ 337: PHP is different from other languages because variables do not have to be

1. Bounded
2. Declared before being assigned
3. Character type
4. Integer type

MCQ 338: By using special wildcards for matching a string which function is used?

1. Strtok
2. Tokenizing
3. Delimiter
4. Regex

MCQ 339: For getting rid of an assigned variable in an array which function is used?

1. delete_array ( )
2. reset_array
3. reset ( )
4. unset ( )

MCQ 340: In Perl-compatible patterns any pattern that is followed by ? this means that

1. Match this pattern 1 or more times
2. Match this pattern exactly 1 time
3. Match this pattern 0 times
4. None of them