Sorry, Sorry!!
I had to leave on a trip right after I posted this, so I didn't really explain it.
basically, I get a number, (1260) and I try to find all the factors.
lines 1121 try to do this.
first, in line 11, we start the loop to go through every number(counter) under x.
in line 13, we see if counter is a factor of x, (if the remainder is 0, then it should be a factor)
if it is, we add it to the factarray array.
the var dumps are there for me to kind of see where the error is.

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<?php

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function findfacts($x) {

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$counter = 1;

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$factarray;

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$factarraycounter = 0;

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while ($counter < $x) {

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if ($x % $counter = 0){

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$factarray[$factarraycounter] = $counter;

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$factarraycounter++;

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}

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$counter++;

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}

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var_dump($factarray);

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return $factarray;

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}

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$input = 1260;

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$factarray = findfacts($input);

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var_dump($factarray);

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?>

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<html><body></body></html>

any suggestions?
p.s. I don't really want prime factors, just
all the factors: 1,2,3,6,9,18 for 18. example.
It's for a really basic programming club I belong to. Stress on basic.