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This document uses PHP Chinese website manual Release
(PHP 7)
IntlChar::isprint — Check if code point is a printable character
$codepoint
)Determines whether the specified code point is a printable character.
TRUE
for general categories other than "C" (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 a printable character, FALSE
if not.
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)
IntlChar::PROPERTY_DEFAULT_IGNORABLE_CODE_POINT