I am completely stumped.
I regenerated all the files and copied them to my test site. You can view it at map_view.php
I used Beyond Compare to ensure all the files are exactly as generated.
I am getting these errors in the firebug console:
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<b>Warning</b>: DOMDocument::load() [<a href='plugins/domdocument.load'>domdocument.load</a>]: Document is empty in /home/rmgoorg/bryantest/merchant/_promaps_cache/_promaps_geocache.xml, line: 1 in <b>/home/rmgoorg/bryantest/merchant/google_javascript/promaps_geocache_php.php</b> on line <b>21</b><br />
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<b>Warning</b>: DOMDocument::load() [<a href='plugins/domdocument.load'>domdocument.load</a>]: Start tag expected, '<' not found in /home/rmgoorg/bryantest/merchant/_promaps_cache/_promaps_geocache.xml, line: 1 in <b>/home/rmgoorg/bryantest/merchant/google_javascript/promaps_geocache_php.php</b> on line <b>21</b><br />
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<b>Fatal error</b>: Call to a member function appendChild() on a non-object in <b>/home/rmgoorg/bryantest/merchant/google_javascript/promaps_geocache_php.php</b> on line <b>36</b><br />
but yet I am seeing well formed data in the post:
actionaddaddress 15305 E Colfax Ave, Aurora, CO, 80011
entryId 15305 E Colfax Ave Aurora CO 80011
geocode (39.740553, -104.809347)
sender promapsforgoogle
and the cache file is not being written to.
I deleted the _promaps_cache directory and gave the parent directory 777 (yikes!) permissions but the directory and cache file is not being created by the script.