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IntlChar::isspace

(PHP 7, PHP 8)

IntlChar::isspace — Check if code point is a space character

说明

public static IntlChar::isspace(int|string $codepoint): ?bool

Determines if the specified character is a space character or not.

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 is a space character, false if not. Returns null on failure.

示例

示例 #1 Testing different code points

<?php
var_dump(IntlChar::isspace("A"));
var_dump(IntlChar::isspace(" "));
var_dump(IntlChar::isspace("\n"));
var_dump(IntlChar::isspace("\t"));
var_dump(IntlChar::isspace("\u{00A0}"));
?>

以上示例会输出：

bool(false)
bool(true)
bool(true)
bool(true)
bool(true)

参见

IntlChar::isJavaSpaceChar() - Check if code point is a space character according to Java
IntlChar::isWhitespace() - Check if code point is a whitespace character according to ICU
IntlChar::isUWhiteSpace() - Check if code point has the White_Space Unicode property
ctype_space() - 检测空白字符

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