IntlChar::toupper

(PHP 7, PHP 8)

IntlChar::toupper — Make Unicode character uppercase

Descrizione

public static IntlChar::toupper(int|string $codepoint): int|string|null

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

Elenco dei parametri

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

Valori restituiti

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

The return type is int unless the code point was passed as a UTF-8 string, in which case a string is returned. Returns null on failure.

Esempi

Example #1 Testing different code points

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

Il precedente esempio visualizzerà:

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

Vedere anche:

IntlChar::tolower() - Make Unicode character lowercase
IntlChar::totitle() - Make Unicode character titlecase
mb_strtoupper() - Trasforma una stringa in lettere maiuscole

add a note

User Contributed Notes

There are no user contributed notes for this page.