Migrating From PHP4 To PHP5: Solving WP-Cache (and maybe other) Issues

Situation: You are migrating your WordPress blog from PHP4 to PHP5 (intentionally or being forced to as you web host won’t support PHP4 anymore). Most of the times, this is as simple as adding some simple lines to .htaccess (e.g. AddHandler application/x-httpd-php5 .php ). And you might not notice any issues. But many of you still do. The issues range from weird page layouts, to some controls not working, to some errors popping up here and there, and probably your blog not even displaying. [Read More]