CalcBuilder Forum

I have tried to create a calculation form for box prices , and I keep getting an error , I am sure my calculation script is incorrect.
Error :
" Parse error: syntax error, unexpected ',' in /com_calcbuilder/models/calcbuilder.php(202) : eval()'d code on line 9

Parse error: syntax error, unexpected ';' in /com_calcbuilder/models/calcbuilder.php(204) : eval()'d code on line 1

Warning: Invalid argument supplied for foreach() in /com_calcbuilder/models/calcbuilder.php on line 211 "
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This is the calculation I am trying to create ;
The formula:

(2x length + 2x width + 63 (mm))
times
(1x width + 1x debth + 20(mm))
divided by
1000
equals amount of m2

(m2 x 479)
divided by
1000
Equals the weight in gram

weight
times

price per ton in gram (1ton: 10,600.- therefore 1gram R0,01- this is a variable figure and will have to be adjusted as per current price/price increases)

equals

price of box
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Below is a copy of the current XML export of my calculator :

Box Price Calculator$mm1=63;
$mm2=20;
$gramweight;
$price;
$m2;
$length;
$width;
$debth;
$tonprice=0,01;

(((2*$length)+(2*$width))+$mm1)*((1*$width+(1*$debth))+$mm2))/1000=$m2;
($m2*479)/1000=$gramweight;
($gramweight*$tonprice)=$price;110210lengthlength100020widthwidth100230debthdebth

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Any help would be appreciated.

Thanks in advance'

Hi ,

Thank you for your reply.
I have edited the calculation as below:

$mm1=63;
$mm2=20;
$gramweight;
$price;
$m2;
$tonprice=0.01;

(((2*$length)+(2*$width))+$mm1)*((1*$width+(1*$debth))+$mm2))/1000=$m2;
$gramweight=($m2*479)/1000;
($gramweight*$tonprice)=$price;

I am still getting an error , is there anyone from the MSTeam who would be able to access the component on our site and try to fix the calculation.
Also I wanted to add a variable $customer price which would be the $price + X% (the % would be our $profit defined in a variable) and display a $customertotal as the result ?

Please advise on what I should do , you input would be greatly appreciated.

Thanks
Felix

Hi ,

I have updated the calculation as below , now I am getting a result but I am also receiving 2 errors.

Parse error: syntax error, unexpected ';' in /home/boxgenie/public_html/components/com_calcbuilder/models/calcbuilder.php(112) : eval()'d code on line 1

Warning: Invalid argument supplied for foreach() in /home/boxgenie/public_html/components/com_calcbuilder/models/calcbuilder.php on line 119

I don't think at this point I would need a custom service as I am now receiving a result , I only need help with the errors now.
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//define the variable inputs

$profit= 1.20;
$tonprice= 0.01;
$mm1= 63;
$mm2= 20;
$gramweight;
$price;
$m2;
$length1;
$width1;
$debth1;
$customertotal;
$a;
$b;

//start calculating the box price based on the algorythm

$a= (2*$length)+(2*$width)+$mm1; $b= (1*$width)+(1*$debth)+$mm2;
$m2= ($a * $b)/1000;
$gramweight= ($m2*479)/1000;
$price= ($gramweight*$tonprice);
$customertotal= ($price*$profit);

//calculate the output for the customertotal which is the price plus our profit
eval("\$customertotal = \"$customertotal\";");
echo "R" . $customertotal. "\n";