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I often see UTF8 parameter in query string. What does it mean? how to work with it and how to handle it?

example: 

http://themeforest.net/item/bridge-creative-multipurpose-wordpress-theme/7315054/comments?utf8=%E2%9C%93&term=custom&from_buyers_and_authors_only=0
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  • What does the form look like? Commented Feb 10, 2016 at 9:14

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Answer to your question can be found at http://programmers.stackexchange.com

By default, older versions of IE (<=8) will submit form data in Latin-1 encoding if possible. By including a character that can't be expressed in Latin-1, IE is forced to use UTF-8 encoding for its form submissions, which simplifies various backend processes, for example database persistence. If the parameter was instead utf8=true then this wouldn't trigger the UTF-8 encoding in these browsers.

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