Seg Fault with fopen

Here's a function I'm trying to use to execute a php and then read the html. I've tried the actual hostname instead of localhost but that's not working either. It's causing a segmentation fault. I'm running linux apache php 4.0.4 Any thoughts? function get_web_page_desc($filename) { $uri = 'http://localhost'.get_web_page_uri($filename); $fp = fopen($uri, 'r'); $contents = fread($fp, 360000 ); // do stuff with contents.... return strip_tags($para); }