Mastering PHP’s strtoupper(): Convert Strings to Uppercase Easily
This article explains PHP’s strtoupper() function, detailing its purpose of converting all characters in a string to uppercase, the required string parameter, the returned uppercase string, and provides a clear code example demonstrating its usage.
Function Overview
The strtoupper() function converts every character in a given string to its uppercase equivalent.
Parameters
string $str – The input string that must be provided; it is the only required argument.
Return Value
The function returns the original string with all characters transformed to uppercase.
Example
echo strtoupper("hello world"); // HELLO WORLDSigned-in readers can open the original source through BestHub's protected redirect.
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