UConverter::toUCallback

(PHP 5 >= 5.5.0, PHP 7, PHP 8, PECL >= 3.0.0a1)

UConverter::toUCallback — Default "to" callback function

public UConverter::toUCallback(
    int $reason,
    string $source,
    string $codeUnits,
    int &$error
): string|int|array|null

警告

本函数还未编写文档，仅有参数列表。

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