Question

I have 1 table on the database 🙁 SQL )

-- id
-- city_name
-- image

and I want to view every images inside them city, for example : USA has 3 images and Canada has 2, it will be looks like :

USA
image 01
image 02
image 03

CANADA
image 01
image 02

I tried this code, it will be view all the records mixed

$results1 = mysql_query("SELECT * FROM gallery");
while($r = mysql_fetch_array($results1)) {

    echo $r[city_name]."<hr>";

    $city = $r[city_name];
    $results2 = mysql_query("SELECT * FROM gallery WHERE city_name='$city'");


    while($r = mysql_fetch_array($results2)){
        echo '<img border="0" src="'.$r['image'].'">';
    }
}

Thanks,

Answer 1

Correction in your code:

You are overwriting `result set $r of first query into second while loop

    $last='';
    $results1 = mysql_query("SELECT * FROM gallery order by city_name ASC");
    while($r = mysql_fetch_array($results1)){

    if($last!=$r['city_name']) {    
    echo $r['city_name']."<hr>";
       $last = $r['city_name']; 
    }

    $city = $r['city_name'];

    $results2 = mysql_query("SELECT * FROM gallery WHERE city_name='$city'");


        while($r1 = mysql_fetch_array($results2)){ //change this variable

                    echo $r1['image'];

        }
   }

Second solution:

$data = array();
$results1 = mysql_query("SELECT * FROM gallery");
while($r = mysql_fetch_array($results1)){
    $data[$r['city_name']][]=$r;
}
foreach($data as $key=>$images){
     echo $key.PHP_EOL; //city name
     foreach($images as $image){
         echo $image['id'].PHP_EOL; // each image id
         echo $image['image'].PHP_EOL; // each image for city
     }
}