IntlChar::isgraph

(PHP 7, PHP 8)

IntlChar::isgraph — Check if code point is a graphic character

说明

public static IntlChar::isgraph(int|string $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).

参数

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}")

返回值

Returns true if codepoint is a "graphic" character, false if not. Returns null on failure.

范例

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)

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