变量次数静态数+变量

Question

Not 100% sure I can do this.. But I am wondering if it is possible. I want to be able to do something like this ;

    $a = 5
    $b = mt_rand(125,245); 
    $c = $a*1.0$a;

So A = 5 ( for an example, it will be different on different criteria, B is then the random number x 1.0 and the variable..

So this example would be $c = $b*1.05

But as the variable A will look at a specific column in a table it isn't always 5. Am I making this way too complex, is there a more simple way to do this?

I would prefer the table variable to NOT be 1.05 for example.. As it would be easier for me to display just 5

Answer 1

you're on the right track,

$a = 5;
$b = mt_rand(125,245); 
$c = $b*(float)('1.0'.$a);

make the 1.0 portion a string, concatenate the contents of $a and then type juggle it back to a float and it should work how you're expecting.