It seems to be caused by using dynamic tags without quotes.
$pid = {post_id}; => crashes
$pid = "{post_id}"; => works
Execution of the PHP code seems to take place (and cause fatal error) before the dynamic tags are replaced.
It seems to be caused by using dynamic tags without quotes.
$pid = {post_id}; => crashes
$pid = "{post_id}"; => works
Execution of the PHP code seems to take place (and cause fatal error) before the dynamic tags are replaced.