Online PHP editor | output for dpp6k

<?php $rows[10] = array('01','8:50','I','CASA','1'); $rows[9] = array('01','8:50','I','CASA','0'); $rows[8] = array('01','8:30','I','CASA','0'); $rows[7] = array('01','8:50','I','CASA','1'); $rows[6] = array('01','8:50','I','CASA','0'); $rows[5] = array('01','8:00','I','CASA','0'); $rows[4] = array('01','7:50','I','CASA','1'); $rows[3] = array('01','7:50','I','CASA','0'); $rows[2] = array('01','7:45','I','CASA','0'); $rows[1] = array('01','7:30','I','CASA','0'); echo "originale<br>"; foreach ($rows as $k => $v) { echo "$k) "; foreach($v as $kk => $vv) { echo $vv ." | "; } echo "<br>"; } foreach ($rows as $k => $v) { if($v[4] == 1) { $keys_to_remove[] = $k-1; } } echo "<pre>"; print_r($keys_to_remove); echo "</pre>"; foreach($keys_to_remove as $key){ unset($rows[$key]); } echo "modificato<br>"; foreach ($rows as $k => $v) { echo "$k) "; foreach($v as $kk => $vv) { echo $vv ." | "; } echo "<br>"; }