Damien Seguy of Nexen.net has submitted the latest PHP stats for the month of April 2006, including some evidence that PHP5 is gaining ground.
According to this latest information, PHP5 usage is gaining ground, and is now being used in about 7.2 percent of PHP installations. On the PHP 4 series front, PHP 4.4.2 is almost to the point of overtaking 4.3.10 as the largest insall base of any PHP version so far.
Damien has also included some new graphs in this edition, including one that shows Apache adotpion by country, one showing PHP's usage on large systems architecture, and a cumulative version graph of the usage of several of the more popular PHP versions.
You can check out the complete graphs for April here and get to the general PHP useage graphs here.