IntlChar::toupper

(PHP 7)

IntlChar::toupper — Make Unicode character uppercase

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public static IntlChar::toupper ( mixed $codepoint ) : mixed

The given character is mapped to its uppercase equivalent. If the character has no uppercase equivalent, the character itself is returned.

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codepoint

The integer codepoint value (e.g. 0x2603 for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g. "\u{2603}")

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Returns the Simple_Uppercase_Mapping of the code point, if any; otherwise the code point itself.

The return type will be integer unless the code point was passed as a UTF-8 string, in which case a string will be returned.

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Example #1 Testing different code points

<?php
var_dump(IntlChar::toupper("A"));
var_dump(IntlChar::toupper("a"));
var_dump(IntlChar::toupper("��"));
var_dump(IntlChar::toupper("��"));
var_dump(IntlChar::toupper("1"));
var_dump(IntlChar::toupper(ord("A")));
var_dump(IntlChar::toupper(ord("a")));
?>

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string(1) "A"
string(1) "A"
string(2) "��"
string(2) "��"
string(1) "1"
int(65)
int(65)

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