IntlChar::isUWhiteSpace
(PHP 7, PHP 8)
IntlChar::isUWhiteSpace — Check if code point has the White_Space Unicode property
说明
public static IntlChar::isUWhiteSpace(int|string$codepoint): ?bool
Check if a code point has the White_Space Unicode property.
This is the same as IntlChar::hasBinaryProperty($codepoint, IntlChar::PROPERTY_WHITE_SPACE)
注意:
This is different from both IntlChar::isspace() and IntlChar::isWhitespace().
参数
codepoint
The int codepoint value (e.g. 0x2603 for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g. "\u{2603}")
返回值
Returns true if
codepoint has the White_Space Unicode property, false if not. Returns null on failure.
范例
示例 #1 Testing different code points
<?php
var_dump(IntlChar::isUWhiteSpace("A"));
var_dump(IntlChar::isUWhiteSpace(" "));
var_dump(IntlChar::isUWhiteSpace("\n"));
var_dump(IntlChar::isUWhiteSpace("\t"));
var_dump(IntlChar::isUWhiteSpace("\u{00A0}"));
?>
以上例程会输出：
bool(false) bool(true) bool(true) bool(true) bool(true)
参见
IntlChar::isspace() - Check if code point is a space character IntlChar::isWhitespace() - Check if code point is a whitespace character according to ICU IntlChar::isJavaSpaceChar() - Check if code point is a space character according to Java IntlChar::hasBinaryProperty() - Check a binary Unicode property for a code point
IntlChar::PROPERTY_WHITE_SPACE
User Contributed Notes
There are no user contributed notes for this page.官方地址：https://www.php.net/manual/en/intlchar.isuwhitespace.php