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The strtoupper () function converts a string to uppercase. Note: This function is binary-safe. Related functions: strtolower () - converts a string to lowercase. lcfirst () - converts the first character of a string to lowercase. ucfirst () - converts the first character of a string to uppercase.
strtoupper (string $string): string. Returns string with all ASCII alphabetic characters converted to uppercase. Bytes in the range "a" (0x61) to "z" (0x7a) will be converted to the corresponding uppercase letter by subtracting 32 from each byte value.
In this tutorial, you'll learn how to use the PHP strtoupper () function to convert all alphabetic characters of a string to uppercase.
10 sty 2024 · This tutorial provides an in-depth look at converting strings to both lowercase and uppercase, demonstrating functions like strtolower() and strtoupper() as well as more nuanced approaches suitable for multibyte character encodings.
string strtoupper ( string $string ) Definition and Usage. It used to make a string upper case. Return Values. It returns the string upper case. Parameters
The strtoupper() function in PHP is used to convert all the lowercase letters in a string to uppercase. This function is particularly useful when working with text-based applications where case sensitivity is important.
In this PHP tutorial, you shall learn how to convert a given string to uppercase using strtoupper() function, with example programs.
