IntlChar::isISOControl()

版本：php7

(PHP 7)

Check if code point is an ISO control code

说明

publicstaticIntlChar::isISOControl(mixed $codepoint): bool

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").

参数

$codepoint

The integer codepoint value(e.g.0x2603forU+2603 SNOWMAN), or the character encoded as a UTF-8 string(e.g."u{2603}")

返回值

Returns TRUE if$codepointis an ISO control code,FALSE if not.

范例

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)

参见

• IntlChar::iscntrl() Check if code point is a control character