Exemple complet

 $ptrDB = pg_connect($strConnex);
  if (!$ptrDB) {
      echo('pb de connection');
      }
  else {
      $requete = 'select * from region';
      $ptrQuery = pg_query($ptrDB,$requete);
      if ($ptrQuery) {
          $numLig = 0;
          $tabReg = pg_meta_data($ptrDB, 'region', true);
          $colnames = array_keys($tabReg);
          echo '<table><tr>';
          foreach ($colnames as $col){
              echo '<th>$col</th>';
          }
          echo "</tr>\n";
          while($ligne = pg_fetch_array($ptrQuery)) {
              echo '<tr>';
              foreach($colnames as $col)
                  echo '<td>'.$ligne[$col]."</td>\n";
              echo "</tr>\n";
          }
          echo '</table>';
          pg_free_result($ptrQuery);
      }
      else { echo(pg_last_error($ptrDB)); }
      pg_close($ptrDB);
  }