mb_strtoupper

(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)

mb_strtoupperMake a string uppercase

Beschreibung

mb_strtoupper(string $string, ?string $encoding = null): string

Returns string with all alphabetic characters converted to uppercase.

Parameter-Liste

string

The string being uppercased.

encoding

Der Parameter encoding legt die Zeichenkodierung fest. Wird er nicht übergeben, so wird die interne Zeichenkodierung genutzt.

Rückgabewerte

string with all alphabetic characters converted to uppercase.

Beispiele

Beispiel #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
?>

Beispiel #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
?>

Anmerkungen

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/.

Siehe auch

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User Contributed Notes 1 note

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1
serg_x
4 years ago
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;
}
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