// Stored Procedure field names used //
$fields = array("siteid","account","p1csr","p1type",etc...
$usage  = array("DB2_PARAM_IN","DB2_PARAM_IN",etc....

// Define parameters //
for ($i=1; $i<=12; $i++) {
  	$fieldname = $fields[$i];
	$ID = ${$fieldname};
	db2_bind_param($stmt, $i, $ID, $usage[$i]);
}