mysql - PHP only parses first element in array -


i'm working on periodic table, in retrieve elements database. want place elements in respective position in periodic table.

e.g.: hydrogen in row 1, cell 1 - helium in row 1, cell 18. cells between 2 should therefore blank.

the problem is, when run for-loop , compare position - stored in database - , id i've given each cell (which same position-outcome database), parses first element , stops.

it returns first 1 1-1 (helium - row 1, cell 1) , parses should. next one, 1-2 (row 1, cell 2), , here on stops.

this query

// sql query retrieving elements $query = "     select          id, name, symbol, row, cell              elements     order         id "; $objresult = $objconnection->query($query);  while ($row = $objresult->fetch_assoc()) {     // creating two-dimensional, associative array containing each element     $ele[] = array(         'id' => $row['id'],         'name' => $row['name'],         'symbol' => $row['symbol'],         'position' => $row['row'].'-'.$row['cell']     ); }

and for-loops

// element counter $cnt = 0;  // creating tr's , td's for($i = 1; $i <= 9; $i++) {     echo '<tr>';         for($h = 1; $h <= 18; $h++) {             $cell = $i.'-'.$h;             $pos = $ele[$cnt]['position'];              echo '<td id="'.$cell.'">';             if($pos == $cell) {                 echo $ele[$cnt]['symbol'];             }             echo '</td>';             $cnt++;         } echo '</tr>';

i hope can me, cus i'm pretty stuck.

you should rethink array , make associative. why don't make key of array field. this:

$ele[ $row['row'].'-'.$row['cell'] ] = array(     'id' => $row['id'],     'name' => $row['name'],     'symbol' => $row['symbol'] );

and in loop can find required element:

for($i = 1; $i <= 9; $i++) { echo '<tr>';     for($h = 1; $h <= 18; $h++) {         $cell = $i.'-'.$h;          echo '<td id="'.$cell.'">';         if(isset($ele[$cell]) {             echo $ele[$cell]['symbol'];         }         echo '</td>';         $cnt++;     } echo '</tr>';

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