to get the values from two tables using unique ID and insert into another single table, this is my code, example: "table1" values and "table2" values copy and insert into "table3", finally delete the original values from old table.
<?php
ini_set('display_errors', 0);
include 'connection/db_connection.php';
$memberid=$_POST['memberid'];
$query=mysql_query("INSERT INTO existing_member (member_id,member_name,dob,gender,address,city,state,phone,email,height,weight,bmi,bp,medical,image_path,joining_date)
SELECT member_id,member_name,dob,gender,address,city,state,phone,email,height,weight,bmi,bp,medical,image_path,joining_date FROM member_registration
WHERE member_id='".$memberid."'" );
/*
$query2=mysql_query("INSERT INTO existing_member (membership_type) SELECT membership_type FROM membership_details
WHERE member_id='".$memberid."'"); */
$query2=mysql_query("INSERT INTO existing_member (membership_type)
SELECT a.membership_type as membership_type FROM membership_details a
INNER JOIN member_registration c ON c.member_id = a.member_id, c.member_name=a.member_name
where a.member_id='".$memberid."'");
if($query2)
{
//$sql=mysql_query("DELETE FROM member_registration WHERE member_id='".$memberid."'");
//$sql1=mysql_query("delete from membership_details where member_id='".$memberid."'");
echo "<script>
alert('Data Deleted Successfully');
window.location.href='close_member.php';
</script>";
}
else
{
echo "User Data Already Exist";
}