mb_strtoupper

(PHP 4 >= 4.3.0, PHP 5)

mb_strtoupper — Make a string uppercase

Description

string mb_strtoupper ( string $str [, string $encoding = mb_internal_encoding() ] )

Returns str with all alphabetic characters converted to uppercase.

Parameters

str: The string being uppercased.
encoding: The encoding parameter is the character encoding. If it is omitted, the internal character encoding value will be used.

Return Values

str with all alphabetic characters converted to uppercase.

Unicode

For more information about the Unicode properties, please see » http://www.unicode.org/unicode/reports/tr21/.

By contrast to strtoupper(), 'alphabetic' is determined by the Unicode character properties. Thus the behaviour of this function is not affected by locale settings and it can convert any characters that have 'alphabetic' property, such as a-umlaut (ä).

Examples

Example #1 mb_strtoupper() example


<?php
$str = "Mary Had A Little Lamb and She LOVED It So";
$str = mb_strtoupper($str);
echo $str; // Prints MARY HAD A LITTLE LAMB AND SHE LOVED IT SO
?>


for some reason, there are instances that special characters do show when you use this function, but when you revisit or refresh the page the special characters doesn't appear anymore, ie GRSARMERING is being displayed instead of GRÆSARMERING. You have to provide the second parameter which charset you are using to override the value. in my case it's iso-8859-1, so the function would now look like



mb_strtoupper($foo, 'iso-8859-1')

oriol dot torras at mobifriends dot com
24-Nov-2008 11:13


UTF-8 does not support html entities

&oacute; is ó in UTF-8

cyril dot legret at free dot no-spam dot fr
26-Feb-2005 06:40


Be careful with htmlentities ...

<?

echo mb_strtoupper("L'&eacute;l�phant", "utf-8");

?>

output : L'&EACUTE;L�PHANT

add a note

mb_strwidth

mb_strtolower

Last updated: Fri, 06 Nov 2009