array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'de', ), 'this' => array ( 0 => 'intlchar.islower.php', 1 => 'IntlChar::islower', ), 'up' => array ( 0 => 'class.intlchar.php', 1 => 'IntlChar', ), 'prev' => array ( 0 => 'intlchar.isjavaspacechar.php', 1 => 'IntlChar::isJavaSpaceChar', ), 'next' => array ( 0 => 'intlchar.ismirrored.php', 1 => 'IntlChar::isMirrored', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/intl/intlchar/islower.xml', ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); ?>
(PHP 7, PHP 8)
IntlChar::islower — Check if code point is a lowercase letter
Determines whether the specified code point has the general category "Ll" (lowercase letter).
Hinweis:
This misses some characters that are also lowercase but have a different general category value. In order to include those, use IntlChar::isULowercase().
Returns true
if
codepoint
is an Ll lowercase letter, false
if not. Returns null
on failure.
Beispiel #1 Testen unterschiedlicher Codepoints
<?php
var_dump(IntlChar::islower("A"));
var_dump(IntlChar::islower("a"));
var_dump(IntlChar::islower("Φ"));
var_dump(IntlChar::islower("φ"));
var_dump(IntlChar::islower("1"));
?>
Das oben gezeigte Beispiel erzeugt folgende Ausgabe:
bool(false) bool(true) bool(false) bool(true) bool(false)
IntlChar::PROPERTY_LOWERCASE