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IntlChar::istitle

(PHP 7, PHP 8)

IntlChar::istitleCheck if code point is a titlecase letter

Description

public static IntlChar::istitle(int|string $codepoint): ?bool

Determines whether the specified code point is a titlecase letter.

true for general category "Lt" (titlecase letter).

Liste de paramètres

codepoint

La valeur codepoint de type entier (i.e. 0x2603 pour U+2603 SNOWMAN), ou le caractère encodé en UTF-8 de type chaîne de caractères (i.e. "\u{2603}")

Valeurs de retour

Returns true if codepoint is a titlecase letter, false if not. Returns null on failure.

Exemples

Exemple #1 Test de différents codepoint

<?php
// Latin Capital Letter Dz with Caron U+01C4
var_dump(IntlChar::istitle("DŽ"));
// Latin Capital Letter D with Small Letter Z with Caron U+01C5
var_dump(IntlChar::istitle("Dž"));
// Latin Small Letter Dz with Caron U+01C6
var_dump(IntlChar::istitle("dž"));

// Greek Capital Letter Alpha with Prosgegrammeni U+1FBC
var_dump(IntlChar::istitle("ᾼ"));
// Greek Small Letter Alpha with Ypogegrammeni U+1FB3
var_dump(IntlChar::istitle("ᾳ"));
// Greek Capital Letter Alpha U+0391
var_dump(IntlChar::istitle("Α"));
?>

L'exemple ci-dessus va afficher :

bool(false)
bool(true)
bool(false)
bool(true)
bool(false)
bool(false)

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