how to combine 2 sql queries to get 1 result - mysql

Question

SELECT users.name, users.registrationdate, users.city, users.status
FROM users, referrals
WHERE users.username= referrals.referrals AND referrals.username='user_name'
SELECT adearning, reffearning
FROM earnings WHERE usersname='user_name33'
How can I combine these two queries as if first query condition doesn't match and doesn't run.. then the second query should run and return some value if condition match

Answer 1

Try this
$query1 = $this->db->query("SELECT users.name, users.registrationdate, users.city, users.status
FROM users, referrals
WHERE users.username = referrals.referrals AND referrals.username='user_name'")
$result1 = $query1->result_array();
$query2 = $this->db->query("SELECT adearning, reffearning FROM earnings WHERE usersname='user_name33' ")
$result2 = $query2->result_array();
$dataArray = array_merge($result1, $result2);
if want to check the result, end of the line add this
print_r($dataArray);die;
On this it will print all of them in one array
Example
$result1 = array(
'0' => 'sjhccsd',
'1' => 'ddd',
'2' => 'df',
'3' => 'dfd',
);
$result2 = array(
'0' => 'sjhccsd',
'1' => 'ddd',
'2' => 'df',
'3' => 'dfd',
);
$dataArray = array_merge($result1, $result2);
print_r($dataArray);
Output : Array ( [0] => sjhccsd [1] => ddd [2] => df [3] => dfd [4] => sjhccsd [5] => ddd [6] => df [7] => dfd )