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