Only first letter
function mb_ucfirst($string, $encoding = 'UTF-8'){
$strlen = mb_strlen($string, $encoding);
$firstChar = mb_substr($string, 0, 1, $encoding);
$then = mb_substr($string, 1, $strlen - 1, $encoding);
return mb_strtoupper($firstChar, $encoding) . $then;
}
mb_strtoupper
(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)
mb_strtoupper — Make a string uppercase
Descrição
mb_strtoupper
( string
$string
, string|null $encoding = null
) : string
Returns string
with all alphabetic characters converted to uppercase.
Parâmetros
-
string -
The string being uppercased.
-
encoding -
O parâmetro
encodingé a codificação de caractere. Se ele é omitido, o valor da codificação de caractere interna é usado.
Valor Retornado
string with all alphabetic characters converted to uppercase.
Exemplos
Exemplo #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
?>
Exemplo #2 mb_strtoupper() example with non-Latin UTF-8 text
<?php
$str = "Τάχιστη αλώπηξ βαφής ψημένη γη, δρασκελίζει υπέρ νωθρού κυνός";
$str = mb_strtoupper($str, 'UTF-8');
echo $str; // Prints ΤΆΧΙΣΤΗ ΑΛΏΠΗΞ ΒΑΦΉΣ ΨΗΜΈΝΗ ΓΗ, ΔΡΑΣΚΕΛΊΖΕΙ ΥΠΈΡ ΝΩΘΡΟΎ ΚΥΝΌΣ
?>
Notas
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).
For more information about the Unicode properties, please see » http://www.unicode.org/reports/tr21/.
Veja Também
- mb_strtolower() - Torna uma string minúscula
- mb_convert_case() - Perform case folding on a string
- strtoupper() - Converte uma string para maiúsculas
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