I put some PHP Code in one of my page after I install a PHP Plugin (Name : PHP Execution), It is working well in HTML Editor view, but when I change the view to Visual Editor, it is missing from the HTML Editor and also from the real content. Can anybody help me...
Try using http://wordpress.org/extend/plugins/exec-php/
Also, one more plugin with details helps you can found here... http://www.hongkiat.com/blog/execute-php-in-wordpress-post-page-and-widget-sidebar/