Description
string
mb_strtoupper ( string str [, string encoding] )
mb_strtoupper() returns str
with all alphabetic characters converted to uppercase.
encoding specifies the encoding of
str; if omitted, the internal character encoding
value will be used.
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 (
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