Hi Felipe and welcome to the Akelos community.
We need to implicitly assign objects using an ampersand to avoid duplicating objects on PHP4.
If PHP5 raises a non-notice error in the future we will need to start a PHP5-only branch, but I prefer to keep a PHP4/PHP5 branch and the start a PHP6-only one with native unicode support and other goodies.
actually you can set
allow_call_time_pass_reference = On
in your php.ini. as of now it has been deprecated and "is likely to be unsupported in future versions of PHP/Zend."
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