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(PHP 7, PHP 8)
IntlChar::isspace — Check if code point is a space character
$codepoint): ?bool
Determines if the specified character is a space character or not.
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}")
Returns true if
codepoint is a space character, false if not. Returns null on failure.
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}"));
?>
以上例程会输出：
bool(false) bool(true) bool(true) bool(true) bool(true)
