PHP - Manual: IntlChar::isgraph
2024-11-15
(PHP 7, PHP 8)
IntlChar::isgraph — Check if code point is a graphic character
$codepoint
): ?boolDetermines whether the specified code point is a "graphic" character (printable, excluding spaces).
true
for all characters except those with general categories "Cc" (control codes), "Cf" (format controls), "Cs" (surrogates), "Cn" (unassigned), and "Z" (separators).
codepoint
The int 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 "graphic" character, false
if not. Returns null
on failure.
示例 #1 Testing different code points
<?php
var_dump(IntlChar::isgraph("A"));
var_dump(IntlChar::isgraph("1"));
var_dump(IntlChar::isgraph("\u{2603}"));
var_dump(IntlChar::isgraph("\n"));
?>
以上例程会输出:
bool(true) bool(true) bool(true) bool(false)