class definative commands out of sync solution - php

Question

After about a week search I seem to find no conclusive / efficient / upto date / standard way of doing this.
The obvious solution is to run a query get the result into a variable and clear down ready for the next query - for efficiency NOT closing the connection.
This is being done in a wrapper class which has select / update / insert which in turn call a query or queries (for mysqli multi_query() ) so ideally it would be good to clear any result prior to next within query / queries to ensure it runs with no concern of what has gone before.
This does not seem possible as some solutions need a result set.
Currently the select / update / insert call:
private function queryclearup($dataresource) {
//clear up if required
switch ($this->dbtype) {
case "mysqli":
#mysqli_next_result($this->connection);
#mysqli_free_result($dataresource); //clear result to avoid out of sync issues
break;
}
}
after dealing with the result set - for example converting to a data array in the case of select, or just logging an error in the case of update / insert.
Still this problem persists with some (update), but not others (select / insert).
public function select($query, $args = array()) {
$this->loghelper->write("SQL Select\n" . $query);
$args = _PHP::array_defaults($args, array(
"pk" => null
));
$data_table = array();
$errors = null;
$query = utf8_decode($query);
switch ($this->dbtype) {
case "mysqli":
$dbdata = $this->query($query);
$data_table = $this->resourceToDataTable($dbdata, $args);
break;
}
return $data_table;
}
Then
private function resourceToDataTable($dataresource, $args = array()) {
$data_table = array();
if (gettype($dataresource) == "resource" || gettype($dataresource) == "object") {
do {
switch ($this->dbtype) {
case "mysqli":
$row = $dataresource->fetch_assoc();
break;
}
if ($row) {
array_push($data_table, $row);
}
} while ($row);
if (!empty($args["pk"])) {
$pktable = array();
foreach ($data_table as $d) {
if (!array_key_exists($args["pk"], $pktable)) {
$pktable[$d[$args["pk"]]] = $d;
}
}
$data_table = $pktable;
}
}
$this->queryclearup($dataresource);
return $data_table;
}

Answer 1

This appears to be whats required
private function queryclearup($dataresource) {
//clear up if required
switch ($this->db["contype"]) {
case "mysqli":
while ($dump = #mysqli_next_result($this->connection)) {
$donothing = 1;
}
#mysqli_free_result($dataresource); //clear result to avoid out of sync issues
break;
}
}