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(PHP 7, PHP 8)
IntlChar::isgraph — Check if code point is a graphic character
$codepoint): ?bool
Determines 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)
