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이 문서에서는 PHP 중국어 웹사이트 매뉴얼 풀어 주다
(PHP 7)
IntlChar::isIDIgnorable — Check if code point is an ignorable character
$codepoint
)Determines if the specified character should be regarded as an ignorable character in an identifier.
TRUE
for characters with general category "Cf" (format controls) as well as non-whitespace ISO controls (U+0000..U+0008, U+000E..U+001B, U+007F..U+009F).
Note:
Note that Unicode just recommends to ignore Cf (format controls).
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 ignorable in identifiers, FALSE
if not.
Example #1 Testing different code points
<?php
var_dump ( IntlChar :: isIDIgnorable ( "A" ));
var_dump ( IntlChar :: isIDIgnorable ( " " ));
var_dump ( IntlChar :: isIDIgnorable ( "\u{007F}" ));
?>
以上例程会输出:
bool(false) bool(false) bool(true)
IntlChar::PROPERTY_DEFAULT_IGNORABLE_CODE_POINT