如何创建动态增值？

I want to create and display a value which is increasing by a fixed amount per second.

I have the following variables in my PHP file:

$AccountValue=220000; $IncreasePerSecond=15;

So for example when the page loads the value would be 220000 after one second the value would be 220015 after another second 220030 ....etc

thanks in advance

It's not the full answer but it should give you the basis:

var count = 0;
setIncrement("doSomething()", 1000);
function doSomething()
{
  document.getElementById("my_div").innerHTML = ++count;
}

See http://www.elated.com/articles/javascript-timers-with-settimeout-and-setinterval/

I think it's best to write this in javascript, i.e. client-side( as Wernight already shows in his answer.

On the server-side you can record the point at which the seconds start to increase. Then when the page gets requested again you can calculate on the server-side the amount of seconds that are between the starting point and the current time.