Salut,

Quel est le problème? Tu dois avoir une table ou fichier à toi de voir ou à chaque fois que quelqu'un prend une ville tu insère avec search_city_form tu utilises une colonne date pour filtrer. Pense à filtrer tes variables post pour la sécurité.

if(isset($_POST['submit_form'])) {

  $search_city_form = $_POST['search_city_form'];

  if(empty($search_city_form)) {

    $message = '<p>Veuillez remplir le champ !</p>';
  }
  else {

    $result = $mysqli->query('SELECT city_id, city_name FROM city WHERE city_name = "' . $search_city_form . '"');

    $row = $result->fetch_array();

    $city_id = $row['city_id'];
    $city_name = $row['city_name'];

    $city[$city_id] = $city_name;

    if(!isset($city_name)) {

      $message = '<p class="error">Veuillez rentrer les villes comme Los Angeles, Paris, Londres ou Sydney!</p>';
    }
    else {

      $mysqli->query('INSERT INTO user_search (user_city, user_name) VALUES("' . $search_city_form . '" , "' . $user_name . '")'); 

    	$result = $mysqli->query('SELECT user_id, user_city, user_name FROM user_search');

      while($row = $result->fetch_array()) {

        $user_id = $row['user_id'];
        $user_city = $row['user_city'];
        $user_name = $row['user_name'];

        $cities[$user_id] = $user_city;
        $cities[$user_id] = $user_name;

      }
    }
  }
}

Bonjour, je voudrais afficher que les villes déjà consultées par l'internaute uniquement dans sa session.

Merci d'avance pour votre aide.

[PHP]
if(isset($_POST['submit_form'])) {

$search_city_form = $_POST['search_city_form'];

if(empty($search_city_form)) {

$message = '<p>Veuillez remplir le champ !</p>';
}
else {

$result = $mysqli->query('SELECT city_id, city_name FROM city WHERE city_name = "' . $search_city_form . '"');

$row = $result->fetch_array();

$city_id = $row['city_id'];
$city_name = $row['city_name'];

$city[$city_id] = $city_name;

if(!isset($city_name)) {

$message = '<p class="error">Veuillez rentrer les villes comme Los Angeles, Paris, Londres ou Sydney!</p>';
}
else {

$mysqli->query('INSERT INTO user_search (user_city, user_name) VALUES("' . $search_city_form . '" , "' . $user_name . '")');

$result = $mysqli->query('SELECT user_id, user_city, user_name FROM user_search');

while($row = $result->fetch_array()) {

$user_id = $row['user_id'];
$user_city = $row['user_city'];
$user_name = $row['user_name'];

$cities[$user_id] = $user_city;
$cities[$user_id] = $user_name;

}
}
}
}
[/PHP]