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PHP Practice Test 68

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The Mathematical Constants MCQ with Answers PDF (Mathematical Constants Multiple Choice Questions (MCQs) PDF e-Book) download Ch. 11-68 to prepare PHP Practice Tests. Learn PHP Math Functions Test PDF, Mathematical Constants Multiple Choice Questions (MCQ Quiz) for computer and information science. The Mathematical Constants MCQ App Download: Free certification app for perl compatible regular expressions, deleting from arrays, php: regular expressions, unbound variables, mathematical constants test prep to learn computer engineering courses.

The MCQ Quiz: Which mathematical constant notation is used for square root; "Mathematical Constants" App (Play Store & App Store) with answers: Sqrt (2); Sqr ( ); 1/sqrt ( ); for computer and information science. Practice PHP Math Functions Questions and Answers, Apple Book to download free sample for 2 year computer science degree.

## Mathematical Constants MCQ Quiz with Answers : Test 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