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(PHP 7)
IntlChar::isISOControl — Check if code point is an ISO control code
$codepoint
)Determines whether the specified code point is an ISO control code.
TRUE
for U+0000..U+001f and U+007f..U+009f (general category "Cc").
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 an ISO control code, FALSE
if not.
Example #1 Testing different code points
<?php
var_dump ( IntlChar :: isISOControl ( " " ));
var_dump ( IntlChar :: isISOControl ( "\n" ));
var_dump ( IntlChar :: isISOControl ( "\u{200e}" ));
?>
以上例程会输出:
bool(false) bool(true) bool(false)