# PHP Making a variable increment based on another variable's value without having too much code?

## Issue

i’m trying to increase a variable value depending on the other variable value for example:

i have a variable called \$totalhousesleft…

i want to set a price depending on how many \$totalhousesleft i have…

everytime the totalhousesleft is down by 10, i want to increase the variable \$currentprice by 1.

the starting value of \$totalhouses left is 8000 and every time it goes down by 10, i set the \$currentprice +1… the starting value of current price is 9…

something like:

``````If (\$totalhousesleft >= 8000) {\$currentprice = 9;  \$sellingprice = 8;}
If (\$totalhousesleft >= 7990) {\$currentprice = 10;  \$sellingprice = 9;}
If (\$totalhousesleft >= 7980) {\$currentprice = 11;  \$sellingprice = 10;}
If (\$totalhousesleft >= 7970) {\$currentprice = 12;  \$sellingprice = 11;}
``````

ALL THE WAY DOWN UNTIL HOUSES LEFT IS 1. If someone can please show me a loop or a shorter code i would really appreciate it!

## Solution

A `for` or `while` loop could be used for this. I’d use `for`:

``````\$iteration = 0;
for(\$x = 8000; \$x > 0; \$x = \$x - 10){
if(empty(\$iteration)) {
\$iteration = \$x/1000;
}
if (\$totalhousesleft >= \$x) {
\$currentprice = \$iteration;
\$sellingprice = \$currentprice + 1;
break;
}
\$iteration++;
}
if(empty(\$currentprice)){
\$currentprice =  \$iteration;
\$sellingprice = \$currentprice + 1;
}
``````

This iterates over until a match is found then breaks out of the looping. The prices are based on the iteration it is in.

Demo link: https://3v4l.org/Mm432 (updated for edge cases 0-9)