The mb_strtoupper() function is an inbuilt function in PHP that helps to transform the multibyte string to uppercase.
Syntax:
mb_strtoupper(string $string, ?string $encoding = null): string
Parameters: This function has two parameters:
- string: This parameter specifies the string that is to be made to uppercase.
- encoding: This parameter denotes the encoding parameter as the character encoding. In case if omitted or null, then the internal character encoding value will be utilized.
Return value: This function converted all alphanumeric characters and then returns an uppercase string.
Example 1: The following code demonstrates the mb_strtoupper() function.
PHP
<?php $str = "neveropen"; $str2 = mb_strtoupper($str); echo $str2; ?> |
Output:
GEEKSFORGEEKS
Example 2: The following code demonstrates the mb_strtoupper() function.
PHP
<?php $str = "Τάχιστη αλώπηξ βαφής ψημένη γη, δρασκελίζει υπέρ νωθρού κυνός"; $str = mb_strtoupper($str, "UTF-8"); echo $str; ?> |
Output:
ΤΆΧΙΣΤΗ ΑΛΏΠΗΞ ΒΑΦΉΣ ΨΗΜΈΝΗ ΓΗ, ΔΡΑΣΚΕΛΊΖΕΙ ΥΠΈΡ ΝΩΘΡΟΎ ΚΥΝΌΣ
Reference: https://www.php.net/manual/en/function.mb-strtoupper.php
