Round Percentages PHP

php variables math echo divide
qweqweqwe picture qweqweqwe · Jul 15, 2013 · Viewed 10.2k times · Source

I'm currently dividing two values in order to get the percentage from the actual count and the total count for my application.

I am using the following formula:

echo ($fakecount / $totalcount) * 100;

That is giving me a value like: 79.2312313. I would perefer a value like 79%.

I have tried the following:

echo round($fakecount / $totalcount) * 100;

this doesn't seem to work correctly.

Any suggestions?

Answer

rjmunro picture rjmunro · Jul 15, 2013

You need to multiply by 100 before you round, not after:

echo round($fakecount * 100 / $totalcount);

You are calculating $fakecount / $totalcount, which will be a number between 0 and 1, then you round that, so you get either 0 or 1, then you multiply by 100, giving either 0 or 100 for your percentage.

Related questions

"Notice: Undefined variable", "Notice: Undefined index", and "Notice: Undefined offset" using PHP

I'm running a PHP script and continue to receive errors like: Notice: Undefined variable: my_variable_name in C:\wamp\www\mypath\index.php on line 10 Notice: Undefined index: my_index C:\wamp\www\mypath\index.php on line 11 Line 10 …

Read More
How to add elements to an empty array in PHP?

If I define an array in PHP such as (I don't define its size): $cart = array(); Do I simply add elements to it using the following? $cart[] = 13; $cart[] = "foo"; $cart[] = obj; Don't arrays in PHP have an add method, for …

Read More
PHP Pass variable to next page

It seems pretty simple but I can't find a good way to do it. Say in the first page I create a variable $myVariable = "Some text"; And the form's action for that page is "Page2.php". So in Page2.php, …

Read More