IntlChar::isupper
(PHP 7, PHP 8)
IntlChar::isupper — Check if code point has the general category "Lu" (uppercase letter)
Açıklama
Determines whether the specified code point has the general category "Lu" (uppercase letter).
Bilginize:
This misses some characters that are also uppercase but have a different general category value. In order to include those, use IntlChar::isUUppercase().
Bağımsız Değişkenler
Dönen Değerler
Returns true if
codepoint is an Lu uppercase letter, false if not. Returns null on failure.
Örnekler
Örnek 1 Farklı karakter kodlarının denenmesi
<?php
var_dump(IntlChar::isupper("A"));
var_dump(IntlChar::isupper("a"));
var_dump(IntlChar::isupper("Φ"));
var_dump(IntlChar::isupper("φ"));
var_dump(IntlChar::isupper("1"));
?>Yukarıdaki örneğin çıktısı:
bool(true) bool(false) bool(true) bool(false) bool(false)
Ayrıca Bakınız
- IntlChar::islower() - Check if code point is a lowercase letter
- IntlChar::istitle() - Check if code point is a titlecase letter
- IntlChar::tolower() - Make Unicode character lowercase
- IntlChar::toupper() - Make Unicode character uppercase
IntlChar::PROPERTY_UPPERCASE- ctype_upper() - Sınama, büyük harfler için yapılır
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