Comment 8 for bug 592442

I've filed a bug report at bugs.php.net[1] and linked to this bug report.

I'll ask for more details about this specific server. I tried a bunch of other sites with a similar setup but can't reproduce it elsewhere yet. Maybe there is a firewall rule that is blocking packets? Seems strange that it would work for php 5.2.10 but not 5.3 though. Hopefully the php folks can provide some insight as to what changed between those versions. Nothing obvious (to me at least) jumps out on the changelog[2]:

Fixed bug #50832 (HTTP fopen wrapper does not support passwordless HTTP authentication). (Jani)
Fixed bug #50791 (Compile failure: Bad logic in defining fopencookie emulation). (Jani)
Fixed bug #48637 ("file" fopen wrapper is overwritten when using --with-curlwrappers). (Jani)
Fixed bug #43510 (stream_get_meta_data() does not return same mode as used in fopen). (Jani)
Optimized require_once() and include_once() by eliminating fopen(3) on second usage. (Dmitry)
Added 'n' flag to fopen to allow passing O_NONBLOCK to the underlying open(2) system call. (Mikko)
Added "ignore_errors" option to http fopen wrapper. (David Zulke, Sara)

Scott
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[1] http://bugs.php.net/bug.php?id=52106
[2] http://php.net/ChangeLog-5.php