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Getting Ready for WordPrss 3.3 – Solve Fatal error: Call to undefined function is_rtl()

December 12, 2011 - Last Modified: December 12, 2011 by Hesham Zebida 7,195

WordPress 3.3

After upgrading three different test blogs of mine with no issue at all, I decided to go a head and upgrade FamousBloggers.net to the latest version of WordPress 3.3 that was released today. but things didn’t went as expected. I got the Fatal error: Call to undefined function is_rtl() , that was really odd because I […]

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