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    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.

    示例

    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"));
    ?>

    以上示例会输出：

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

    参见

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