Need to find key with value, replace that value

Hello,

The code below I am pulling info from post and placing into a variable.  Now I need to find a specific key in that varable and replace only that.  Any thoughts?

Thanks
foreach($_POST as $key=>$value){
		if ($key!="M_unecpss"){
	//		print "Name KEY=".$key." and VALUE=".$value."<BR>";
			$VARS = $VARS."&".$key."=".$value;
		}
	}
	$VARS = $VARS."&iFind_MSISDN=".$MSISDN;
	//print "Name KEY=iFind_MSISDN and VALUE=".$MSISDN."</P>";
	$VARS=$VARS."&unecpss=".$unecpss;
	//print "Name KEY=enucpss and VALUE=".$unecpss."</P>";
	$VARS=$VARS."&action=both";
	//print "Name KEY=action and VALUE=both</P>";
	$VARS = substr($VARS,1);

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vrmetroAsked:
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hieloConnect With a Mentor Commented:
>>Now I need to find a specific key in that varable and replace only that.  
if( isset($_POST['keyname']) )
{
$_POST['keyname']="new value";
}
0
 
Tyler LaczkoConnect With a Mentor Commented:
You can reference variables in the POST since it is an array

eg Change POST variable

$_POST['keywantingtochange'] = "new value";
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