php - How to delete an item into an array with a button -

i have code array saves need each time press button, these items saved array showed later erase buttons, don't know how delete it, there part of code shows meant:

echo "<table border=1>";     echo "<tr class='tabpreciostitles'>";       echo "<td>nom activitat</td>             <td>nom tipus activitat</td>             <td>tipus tarifa</td>             <td>temps/km</td>             <td>preu</td>";     echo "</tr>"; ($x=0;$x<count($savedarray[4]);$x++){   echo "<tr>";   echo "  <td>".$savedarray[0][$x]."</td>";   echo "  <td>".$savedarray[1][$x]."</td>";   echo "  <td>".$savedarray[2][$x]."</td>";   echo "  <td>".$savedarray[3][$x]."</td>";   echo "  <td>".$savedarray[4][$x]."</td>";   echo "  <td><input type='submit' onclick='eliminar(".$savedarray[0][$x].",".$savedarray[1][$x].",".$savedarray[2][$x].",".$savedarray[3][$x].",".$savedarray[4][$x].")' class='carritoelim' value='elim'></td>";   echo "</tr>"; } 

a pic forms:

the other pic shows items on array:

anyone knows how delete selected row references item on array delete button? thanks

in client side, following code works.

for ($x=0;$x<count($savedarray[4]);$x++){   echo '<tr id="line' . $x . '">';   echo "  <td>".$savedarray[0][$x]."</td>";   echo "  <td>".$savedarray[1][$x]."</td>";   echo "  <td>".$savedarray[2][$x]."</td>";   echo "  <td>".$savedarray[3][$x]."</td>";   echo "  <td>".$savedarray[4][$x]."</td>";   echo "  <td><input type='submit' onclick='eliminar('line" . $x . "')' class='carritoelim' value='elim'></td>";  echo "</tr>"; }  function eliminar($id) {   var elem = document.getelementbyid($id);   elem.parentnode.removechild(elem); } 

however, if want delete column in server side also, ajax codes should added.