MySQL two selects but totally different - php

Question

ok I have to tables they are along the same lines, but one that lists all stores that sell goods and one that is products that we sell.
Think of it like Fruit and Veg totally different.
What I need to work out is if there is 7 fruit and we need 8 listings then go and get a random veg and show it in the same results.
Here is what our query currently looks like. you will notice we can send a $count which we send as 8 but we may want to increase to 10 or even make it 4.
public function realcashoffers($state,$count)
{
$this->state = $state;
$this->number = $count;
//print count($this->JSONselect("business_stores","*",NULL,NULL),1);
print $this->JSONselect("approved_business, business_stores, Real_Cash_Offers"," *, group_concat(offer ORDER BY offer ASC SEPARATOR ',') as offers"," approved_business.id = business_stores.business_id AND Real_Cash_Offers.business_id = approved_business.id AND Real_Cash_Offers.storeid = business_stores.storeid AND business_stores.state = '{$this->state}'","GROUP BY id ORDER BY RAND(), approved_business.id DESC LIMIT {$this->number} ");
}
this->JSONselect goes to
//JSON select
public function JSONselect($table,$options,$where,$orderby)
{
$options = empty($options) ? "*" : $options;
$where = empty($where) ? "1=1" : $where;
$orderby = empty($orderby) ? "" : $orderby;
$qry = "SELECT $options FROM $table WHERE $where $orderby ";
//print $qry;
$result = mysql_query($qry) or die(json_encode(array("error",mysql_error())));
while(($row = mysql_fetch_assoc($result))){ $resultArray[] = $row; }
//print json_encode($resultArray);
return count($resultArray) < 1 ? print "[".json_encode(array("error"=>"sorry"))."]" : json_encode($resultArray);
}

Answer 1

If I understand correctly I think what your looking for is something along the lines of this;
Update the main function to determine if there were enough results and call the secondary query if not
public function realcashoffers($state,$count)
{
$this->state = $state;
$this->number = $count;
$result = $this->JSONselect("approved_business, business_stores, Real_Cash_Offers"," *, group_concat(offer ORDER BY offer ASC SEPARATOR ',') as offers"," approved_business.id = business_stores.business_id AND Real_Cash_Offers.business_id = approved_business.id AND Real_Cash_Offers.storeid = business_stores.storeid AND business_stores.state = '{$this->state}'","GROUP BY id ORDER BY RAND(), approved_business.id DESC LIMIT {$this->number} ");
$remaining = count($result) - $count;
if ($remaining) {
$result = array_merge($result, $this->JSONselect(.. enter secondary call here using $remaining as the limit..);
}
$this->JSONprint($result);
}
Update JSONselect to return the results instead of being responsible for printing them as well
public function JSONselect($table,$options,$where,$orderby)
{
$resultArray = array();
$options = empty($options) ? "*" : $options;
$where = empty($where) ? "1=1" : $where;
$orderby = empty($orderby) ? "" : $orderby;
$qry = "SELECT $options FROM $table WHERE $where $orderby ";
//print $qry;
$result = mysql_query($qry) or die(json_encode(array("error",mysql_error())));
while(($row = mysql_fetch_assoc($result))){ $resultArray[] = $row; }
//print json_encode($resultArray);
return $resultArray;
}
create JSONprint that will print the results returned
protected function JSONprint($resultArray) {
return count($resultArray) < 1 ? print "[".json_encode(array("error"=>"sorry"))."]" : json_encode($resultArray);
}