I am developing a site where people will put their comments, in arabic. my website is built in php. does any body know a way how to add right-to- left language support to write text in english?
Try specifying <html dir="rtl"> in your markup.
I would read: http://www.w3.org/International/tutorials/bidi-xhtml/
If for some reason you need left to right on a certain element, just specify the dir attribute on it: <div dir="ltr"></div>
I had similar problem obtained even I try rtl in textarea where from I was sending my arabic data into database finally it solved when I also apply rtl at the div where I was calling data to print at that div. So use rtl at both sides one where data is sending into database and second where data is retrieving to print.
来源：https://stackoverflow.com/questions/3077895/right-to-left-language-support-in-php