Php judgment page input character encoding method _ PHP Tutorial-php Tutorial

Php determines the encoding of the input characters on the page. In the php Tutorial, how does one determine the encoding of the input characters on the page? Phpfunctionconvtoutf8 ($ str) {if (mb_detect_encoding ($ str, UTF-8, ISO-8859-1, gbk )! UTF-8) {returniconv (gbk, UTF-8, $ str);} else {php Tutorial judgment page input character encoding method

Function convtoutf8 ($ str)
{
If (mb_detect_encoding ($ str, "UTF-8, ISO-8859-1, gbk ")! = "UTF-8 ")
{

Return iconv ("gbk", "UTF-8", $ str );

}
Else
{
Return $ str;
}

}
?>

But some friends said, mb_detect_encoding function does not support gbk only support UTF-8, UTF-7, ascii, euc-jp, sjis, eucjp-win, sjis-win, jis, ISO-2022-JP and ISO-8859 -*
You can test it. I have never tested it.

/* Detect character encoding with current detect_order */
Echo mb_detect_encoding ($ str );

/* "Auto" is expanded according to mbstring. language */
Echo mb_detect_encoding ($ str, "auto ");

/* Specify encoding_list character encoding by comma separated list */
Echo mb_detect_encoding ($ str, "jis, eucjp-win, sjis-win ");

/* Use array to specify encoding_list */
$ Ary [] = "ascii ";
$ Ary [] = "jis ";
$ Ary [] = "euc-jp ";
Echo

Http://www.bKjia. c0m/phper/php-cy/36263.htm recommended article

Why? Php function convtoutf8 ($ str) {if (mb_detect_encoding ($ str, UTF-8, ISO-8859-1, gbk )! = Utf-8) {return iconv (gbk, UTF-8, $ str);} else {...