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

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+1 vote
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in PHP by (87.1k points)
Which one of the following functions will convert a string to all uppercase?

(a) strtoupper()

(b) uppercase()

(c) str_uppercase()

(d) struppercase()

The question was asked during an interview for a job.

My doubt stems from Strings and Regular Expressions topic in portion Strings and Regular Expressions of PHP

1 Answer

+1 vote
by (103k points)
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Best answer
Correct option is (a) strtoupper()

Best explanation: Its prototype follows string strtoupper(string str).

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