$dishPrice = 0;
$dishAmount = 0;
$dishPriceV = 0;
$dishPrice = $dish->{"price"}; //
$dishAmount = $dish->{"amount"}; //
$dishPriceV += $dishPrice * $dishAmount;print out each box
$dishPriceV he will add the above
, for example, the first one is 14 is right
, but the second should be 5.6
he adds the above 14 to 19.6
the third should be 719.98 instead of 739.58
your + = symbol must be wrong.
do you use loops to calculate the total price? You need to set total to 0 for each loop, and that's fine.
put $dishPriceV = 0; in the loop
can ps: put the code a little bit, just a few lines?
it seems that you are calculating directly with floating-point numbers. It is recommended to change floating-point numbers into integers and try again.
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