Planet php is the one stop place where you will find all the php news those are happening around. This site collects informations from more than 40 blog from popular php developers. This site updated twice a day, so you can always find latest news here.
Planet PHP also aggregates latest PHP feeds from del.icio.us which is a bonus. You will also find latest news about PEAR/PECL releases. If you are PHP fan, planet-php is a must see site for you.