PHP compute and return total

Hey guys, had another question regarding a PHP function.

I have to :
Write a function named “addThemUp” that accepts 1 parameter using a loop
adding all integers from zero to the number it receives and return the total, and here is the function i have to use without using an array.

function addThemUp($parameter1) {

 // The parameter name can be whatever you want.

 // Your code goes here.

};

Here is my function that i have tried to use and is not correct, would appreciate a pointer or two!, Thank you!

function addThemUp($parameter1) {

 $total=0;
 //this will start finding numbers from zero
      for ($i=0;$i<=$number;$i++) {

     total=$total+$i
     return total;
 };

};

I am well aware that this is wrong, would appreciate some pointers! Have a blessed day

You say this is wrong although you want some pointers… pointers for what… for why its wrong?

Mainly syntax errors there. Look what I’ve done differently here:
[php]
function addThemUp($param) {
$total=0;
//this will start finding numbers from zero
for ($i = 0; $i <= $param; $i++) {
$total = $total + $i;
}

return $total;

}
[/php]

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