IntlChar::isprint

(PHP 7)

IntlChar::isprint — Check if code point is a printable character

说明

public static IntlChar::isprint ( mixed $codepoint ) : bool

Determines whether the specified code point is a printable character.

TRUE for general categories other than "C" (controls).

参数

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}")

返回值

Returns TRUE if codepoint is a printable character, FALSE if not.

范例

Example #1 Testing different code points


<?php
var_dump(IntlChar::isprint("A"));
var_dump(IntlChar::isprint(" "));
var_dump(IntlChar::isprint("\n"));
var_dump(IntlChar::isprint("\u{200e}"));
?>

以上例程会输出：

bool(true)
bool(true)
bool(false)
bool(false)

参见

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