Using UTF-8...

Fill in some data in the form below. You may fill in and test some Japanese and Chinese characters to see what happens.
Chinese: 木村被問候妻女變臉發惡.
Japanese: ウェブ全体から検索.

Unicode test form

You are submitting this form in UTF-8.

Below will show POST data from PHP's $_POST variable (only if you have posted something).

array(0) {
This is what PHP thinks is submitted. PHP's charset detection can only detect UTF-8, UTF-7, ASCII, EUC-JP,SJIS, eucJP-win, SJIS-win, JIS and ISO-2022-JP.
Raw post data:

This should be equal to the output of an HTTP sniffer.

You can switch the charset by modifying the enc parameter in the URL or by use of this: