Hello Friends Today, through this tutorial, I will tell you How to Use `strtoupper()` function using PHP, PHP 8, PHP 8.1, PHP 8.2 With Example. The `strtoupper()` function in PHP is used to convert a string to uppercase. It’s available in both PHP 8.1 and PHP 8.2. Here’s how you can use it with an example:
<?php // Original string $string = "hello, world!"; // Convert the string to uppercase $uppercase_string = strtoupper($string); // Output the uppercase string echo $uppercase_string; ?>
In this example, the `strtoupper()` function converts the original string `”hello, world!”` to uppercase. The resulting uppercase string is stored in the variable `$uppercase_string` and then echoed out.
The output will be:
HELLO, WORLD!
This function is handy when you need to normalize strings for comparison or consistent output formatting where uppercase is required. It’s a simple and effective way to manipulate string case in PHP.