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(PHP 7)
IntlChar::isWhitespace — Check if code point is a whitespace character according to ICU
$codepoint
)Determines if the specified code point is a whitespace character according to ICU.
A character is considered to be a Java whitespace character if and only if it satisfies one of the following criteria:
codepoint
The integer 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 whitespace character according to ICU, FALSE
if not.
Example #1 Testing different code points
<?php
var_dump ( IntlChar :: iswhitespace ( "A" ));
var_dump ( IntlChar :: iswhitespace ( " " ));
var_dump ( IntlChar :: iswhitespace ( "\n" ));
var_dump ( IntlChar :: iswhitespace ( "\t" ));
var_dump ( IntlChar :: iswhitespace ( "\u{00A0}" ));
?>
以上例程会输出:
bool(false) bool(true) bool(true) bool(true) bool(false)