According to some details over on TechCrunch there's a few rumors being started that Zend ("the PHP company") is looking to sell.

Israeli startup Zend Technologies has fired 25 percent of its R&D team (at least ten people), as well as others across the company, in an attempt to become cash flow positive, says a source close to the company.

The official Zend word is that yes, there have been layoffs but no, they cannot comment on the reasoning behind them. Several big names are being thrown around for possible buyers - Microsoft, IBM and Oracle - who have all shown interest in the past.