array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'zh', ), 'this' => array ( 0 => 'intlchar.isgraph.php', 1 => 'IntlChar::isgraph', ), 'up' => array ( 0 => 'class.intlchar.php', 1 => 'IntlChar', ), 'prev' => array ( 0 => 'intlchar.isdigit.php', 1 => 'IntlChar::isdigit', ), 'next' => array ( 0 => 'intlchar.isidignorable.php', 1 => 'IntlChar::isIDIgnorable', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/intl/intlchar/isgraph.xml', ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); ?>
(PHP 7, PHP 8)
IntlChar::isgraph — Check if code point is a graphic character
Determines whether the specified code point is a "graphic" character (printable, excluding spaces).
true
for all characters except those with general categories "Cc" (control codes), "Cf" (format controls), "Cs" (surrogates), "Cn" (unassigned), and "Z" (separators).
示例 #1 Testing different code points
<?php
var_dump(IntlChar::isgraph("A"));
var_dump(IntlChar::isgraph("1"));
var_dump(IntlChar::isgraph("\u{2603}"));
var_dump(IntlChar::isgraph("\n"));
?>
以上示例会输出:
bool(true) bool(true) bool(true) bool(false)