(PHP 7)
IntlChar::isJavaSpaceChar — Check if code point is a space character according to Java
Determine if the specified code point is a space character according to Java.
TRUE for characters with general categories "Z" (separators), which does not include control codes (e.g., TAB or Line Feed).
Returns TRUE if
codepoint is a space character according to Java, FALSE if not.
Example #1 Testing different code points
<?php
var_dump(IntlChar::isJavaSpaceChar("A"));
var_dump(IntlChar::isJavaSpaceChar(" "));
var_dump(IntlChar::isJavaSpaceChar("\n"));
var_dump(IntlChar::isJavaSpaceChar("\t"));
var_dump(IntlChar::isJavaSpaceChar("\u{00A0}"));
?>
以上例程会输出：
bool(false) bool(true) bool(false) bool(false) bool(true)