What steps will reproduce the problem? 1. Attempt to use rolling-curl on RHEL with php 5.1.6

What is the expected output? What do you see instead? No errors are thrown but no files download.

What version of the product are you using? On what operating system? Redhat Enterprise Linux 5.4 PHP 5.1.6

Please provide any additional information below. I've traced the problem to the function call curl_multi_info_read which requires php 5.2.0. (The documentation on php.net is in error as only listing php 5.x) as a requirement. curl_multi_info_read returns null in all cases causing the rolling curl to fail.