Json array in php code -

i need use json array in php code. problem i'm in loop , need separate array in 2 , want merge it. far didn't work. use have graph (jqxchart).

here code

for($i = 0; $i < $nb; $i++){    if ($i%2 == 1){       $time[$i] = (hexdec($hour[$i]));     $orders1[] = array(             'orderdate' => $time[$i],         );    }else{      $hour[$i] = $hour[$i] + 1;     $orders2[] = array(              'productname' => $hour[$i],     );   } } $orders[] = array_merge_recursive( $orders1[], $orders2[] );  }  echo json_encode($orders); 

thanks

try code,

$orders1 = array();    $orders2 = array();   for($i = 0; $i < $nb; $i++){   if ($i%2 == 1){       ....     $temp1 = array(             'orderdate' => $time[$i],         );     array_push($orders1, $temp1);    }else{      ....     $temp2 = array(              'productname' => $hour[$i],     );      array_push($orders2, $temp2);    }   } } $orders = array_merge( $orders1, $orders2 ); echo json_encode($orders);