IntlChar::isprint
(PHP 7, PHP 8)
IntlChar::isprint — Check if code point is a printable character
说明
public static IntlChar::isprint(int|string
$codepoint): ?boolDetermines whether the specified code point is a printable character.
true for general categories other than "C" (controls).
参数
-
codepoint -
The int codepoint value (e.g.
0x2603for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g."\u{2603}")
返回值
Returns true if
codepoint is a printable character, false if not. Returns null on failure.
范例
示例 #1 Testing different code points
<?php
var_dump(IntlChar::isprint("A"));
var_dump(IntlChar::isprint(" "));
var_dump(IntlChar::isprint("\n"));
var_dump(IntlChar::isprint("\u{200e}"));
?>
以上例程会输出：
bool(true) bool(true) bool(false) bool(false)
参见
- IntlChar::iscntrl() - Check if code point is a control character
IntlChar::PROPERTY_DEFAULT_IGNORABLE_CODE_POINT
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