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<?php $data = [ ['linea' => '1 La Defense - Chateau de Vincennes'], ['linea' => '2 Porte Dauphine - Nation'], ['linea' => '3 Pont de Levallois Becon - Gallieni'], ['linea' => '3bis Gambetta - Porte des Lilas'], ['linea' => '4 Porte de Clignancourt - Mairie de Montrouge'], ['linea' => '5 Bobigny Pablo Picasso - Place d�Italie'], ['linea' => '6 Charles de Gaulle Etoile - Nation'], ['linea' => '7 Louis Leblanc - Pre Saint Gervais'], ['linea' => '8 Balard - Pointe du Lac'], ['linea' => '9 Pont de S�vres - Mairie de Montreuil'], ['linea' => '10 Boulogne Pont de Saint Cloud - Gare d�Austerlitz'], ['linea' => '11 Chatelet - Mairie des Lilas'], ['linea' => '12 Front Populaire - Mairie d�Issy'], ['linea' => '13 Gare Saint Lazare - Olympiades'] ]; $data = array_column($data, 'linea'); print_r($data);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Array ( [0] => 1 La Defense - Chateau de Vincennes [1] => 2 Porte Dauphine - Nation [2] => 3 Pont de Levallois Becon - Gallieni [3] => 3bis Gambetta - Porte des Lilas [4] => 4 Porte de Clignancourt - Mairie de Montrouge [5] => 5 Bobigny Pablo Picasso - Place d�Italie [6] => 6 Charles de Gaulle Etoile - Nation [7] => 7 Louis Leblanc - Pre Saint Gervais [8] => 8 Balard - Pointe du Lac [9] => 9 Pont de S�vres - Mairie de Montreuil [10] => 10 Boulogne Pont de Saint Cloud - Gare d�Austerlitz [11] => 11 Chatelet - Mairie des Lilas [12] => 12 Front Populaire - Mairie d�Issy [13] => 13 Gare Saint Lazare - Olympiades )

preferences:
169.37 ms | 405 KiB | 289 Q