Damien Seguy has official published the PHP statistics for July 2008 to the Nexen.net website today. Here's a summary:

• PHP 5 reaches 40,63% of PHP market share
• PHP 5.2.6 usage is growing fast, about to take over PHP 5.2.5
• PHP 4.4.9 and 5.2.6 will threaten PHP 4.4.8's dominance in August 2008

You can find the evolution stats for this past month here and the full statistics here.