in Apache/Solr/Service.php

There are a couple places where we experienced problems because this $fieldBoost variable:

            if ($fieldBoost !== false)

is NULL, so it passed the test and then when sent to Solr causes failure. Either there is a problem when setting the values, or possibly this check should be something more robust like:

if (is_numeric($fieldBoost))

note - this problem occurs with multi-value fields, not single value

Comment deleted

This diff shows our current work-around.

Can you see if my recent commit http://code.google.com/p/solr-php-client/source/detail?r=5 is adequate?

It worked well for me. I was able to index using it without error.

r5 has been working fine for us, so I think this issue is fixed.