mb_regex_encoding

(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

mb_regex_encodingSet/Get character encoding for multibyte regex

说明

mb_regex_encoding(?string $encoding = null): string|bool

Set/Get character encoding for a multibyte regex.

参数

encoding

encoding 参数为字符编码。如果省略或是 null,则使用内部字符编码。

返回值

If encoding is set, then 成功时返回 true, 或者在失败时返回 false。 In this case, the internal character encoding is NOT changed. If encoding is omitted, then the current character encoding name for a multibyte regex is returned.

更新日志

版本 说明
8.0.0 现在 encoding 可以为 null。

参见

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