PHP select from two tables and join them? - php

Question

I'm coding an car rental script in PHP, I have all the cars in one SQL table and all the rentals in another. How can I show all rentals right under the cars?
**Like this:**
bilar.reknr / Marke / Modell
starttid / stop tid
starttid / stop tid
starttid / stop tid
bilar.reknr / Marke / Modell
starttid / stop tid
starttid / stop tid
**EX**
ZOG-933 / BMW / 320
26.3.2013 / 27.3.2013
28.3.2013 / 29.3.2013
30.3.2013 / 31.3.2013
GOD-123 / MAZDA / 6
1.4.2013 / 2.4.2013
5.4.2013 / 6.4.2013
This is my code now:
<?php
include 'connection.php';
$sqlquery = "SELECT * FROM bilar";
$sqlarray = mysql_query($sqlquery);
print "<table border='1'><tr>";
print "<td>Register nummer</td>";
print "<td>Marke</td>";
print "<td>Modell</td>";
print "<td>arsmodell</td>";
print "<td>personer</td>";
print "<td>fel</td>";
print "</tr>";
while ($row = mysql_fetch_array($sqlarray)) {
print "<tr style='font-weight:bold;'>";
//print "<td>" . $row['reknr'] . "</td>";
print "<td>" . $row['marke'] . "</td>";
print "<td>" . $row['modell'] . "</td>";
print "<td>" . $row['arsmodell'] . "</td>";
print "<td>" . $row['personer'] . "</td>";
print "<td>" . $row['fel'] . "</td>";
print "</tr>";
$iddd=$row['reknr'];
$sqlquery = "SELECT * FROM hyr";
$sqlarray = mysql_query($sqlquery);
while ($row = mysql_fetch_array($sqlarray)) {
if ($row['reknr']=$row['reknr1']){
print "<tr>";
print "<td>" . $row['startdat'] . "-" . $row['stopdat'] . "</td>";
print "<td>" . $row['starttid'] . "-" . $row['stoptid'] . "</td>";
print "</tr>";
}
}
}
print "</table>";
mysql_close();
?>

Answer 1

You can try this
Suppose You have the following table structure:-
Car_table: car_id, car_name, car_color
Rental_table: rental_id, car_id, rental_date
So your query will be
$query = "Select Car_table.*,Rental_table.* from Car_table,Rental_table WHERE Car_table.car_id=Rental_table.car_id GROUP BY car_id"
Then rest I hope you know what to do. Hope this helps

Answer 2

include 'connection.php';
$sqlarray = mysql_query("SELECT t1.*, t2.* FROM bilar t1 LEFT JOIN hyr t2 ON t1.reknr = t2.reknr1");
$arr = array();
print "<table border='1'><tr>";
print "<td>Register nummer</td>";
print "<td>Marke</td>";
print "<td>Modell</td>";
print "<td>arsmodell</td>";
print "<td>personer</td>";
print "<td>fel</td>";
print "</tr>";
$arr =array();
while ($row = mysql_fetch_array($sqlarray)) {
$arr[$row[0]]['marke']=$row[1];
$arr[$row[0]]['modell']=$row[2];
$arr[$row[0]]['arsmodell']=$row[3];
$arr[$row[0]]['personer']=$row[4];
$arr[$row[0]]['fel']=$row[5];
$arr[$row[0]]['startdat'][]=$row[6];
$arr[$row[0]]['stopdat'][]=$row[7];
}
foreach($arr as $reknr=>$row) {
print "<tr style='font-weight:bold;'>";
//print "<td>" . $reknr . "</td>";
print "<td>" . $row['marke'] . "</td>";
print "<td>" . $row['modell'] . "</td>";
print "<td>" . $row['arsmodell'] . "</td>";
print "<td>" . $row['personer'] . "</td>";
print "<td>" . $row['fel'] . "</td>";
print "</tr>";
for($i=0; $i <= count($row['startdat']) -1 ; $i++) {
print "<tr>";
print "<td>" . $row['startdat'][$i] . "-" . $row['stopdat'][$i] . "</td>";
print "</tr>";
}
}
print "</table>";
mysql_close();