The ____ function converts all of the letters in a string to capital letters.
A) strtoupper()
B) stringtoupper()
C) strtolower()
D) stringtolower()

Question

Quizplus · Accepted Answer

The strtoupper() function is specifically designed to convert all the letters in a given string to capital letters, making it the correct choice for this question. The other options, stringtoupper(), strtolower(), and stringtolower(), are not valid PHP functions.

The ____ Function Converts All of the Letters in a String