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function InsertCommas($strString) {
$strLength = strlen($strString);
$newstr = "";
if ($strLength >= 4) {
$cntCommaInsertsDiv = intval($strLength / 3); $cntCommaInsertsMod = $strLength % 3;
//Holder for every 3 digits array
$arrayStringHolder = array();
//Grab digits in 3 count increments
for ($x=1;$x<=$cntCommaInsertsDiv;$x++) {
$intPosition = $x * 3;
$arrayStringHolder[$x] = substr($strString, -$intPosition, 3); }
//Grab digits remaining
if ($cntCommaInsertsMod > 0) {
$arrayStringHolder[$x] = substr($strString, 0, $cntCommaInsertsMod); }
//Reverse array $arrayStringHolder = array_reverse($arrayStringHolder);
//Add commas
for ($x=0;$x<count($arrayStringHolder);$x++) {
if ($x != (count($arrayStringHolder)-1)) {
//Everything except last 3 digits i.e. (1,222,333,444) = "1 222 333"
$newstr = $newstr . $arrayStringHolder[$x] . ","; }
else {

//Last 3 digits i.e. (1,222,333,444) = "444" $newstr = $newstr . $arrayStringHolder[$x];
}
}
return $newstr;
}else
{
return $strString;
}
}