已设置内容类型和内容长度，但$ _POST数组为空

I have a fairly fresh apache/php install on a local server running php 5.3.8 and Zend Engine 2.3.0 with eAccelerator, Xdebug, and Suhosin. Everything is good except for a major post issue. Every time a form is submitted as post, no data comes through. (print_r($_POST) returns a blank array.)I have a fairly fresh apache/php install on a l