Be more careful about checking return values
Be more careful about checking return values

Previously we safeguarded against anything too bad from happening by
setting the zval to null (in PHP). However, it is better to just not use
the zval if there was an error and return early.

maxmind/MaxMind-DB-Reader-php,maxmind/MaxMind-DB-Reader-php,maxmind/MaxMind-DB-Reader-php