Fatal error: Call to undefined function bcmul() in /var/www/html/modules/yr_verdata/yr_verdata.module on line 721

bcmul() is a function in php. This error means that the php version on your server has not been compiled with the necessary library, called BC Math (http://php.net/manual/en/book.bc.php). You need to talk to your server admin about this.

Closing this as this is an issue with the server PHP installation, not this module or Drupal.

If your sever isn't compiled with bcmath, you can add the following replacement functions to your code:

if (!function_exists(bcmul)) {
  function bcmul($_ro, $_lo, $_scale=0) {
    return round($_ro*$_lo, $_scale);
  }
}
  
if (!function_exists(bcdiv)) {
  function bcdiv($_ro, $_lo, $_scale=0) {
    return round($_ro/$_lo, $_scale);
  }
}

...or just activate the enclosed module if you don't know where to add the above code.

Thanks for the code, reswild. I assume I can include this in future versions of the Yr module?

You can of course use it if you like. I just copied it from a user comment in the php user manual.

Great, thank you for the contribution :)

For RHEL, I added the php-bcmath rpm

yum install php-bcmath

I'm sorry to comment on a fixed issue, but is it really necessary that this module "requires" the bcmath PHP extension? Couldn't the module just include the code/patch from reswild in comment 3? Those 7 extra lines would have saved me some time today ;-)

Yes, I will incorporate this in the next release of the module. I haven't had the time to work on it the last few months because of school, but I have some more time on my hands the next months :)