Problem with saving Json encoded datas.

Hi,

Here i am developing a hrm module for FA. in the middle, i have the problem of saving json encoded data. Here is my code,

$kv_sal_structure = array(
        'empl_hra' => (empty($_POST['empl_hra'])) ? '0' : $_POST['empl_hra'],
        'empl_ca' => (empty($_POST['empl_ca'])) ? '0' : $_POST['empl_ca'],
        'empl_fa' => (empty($_POST['empl_fa'])) ? '0' : $_POST['empl_fa'],
        'empl_ma' => (empty($_POST['empl_ma'])) ? '0' : $_POST['empl_ma'],
        'empl_ea' => (empty($_POST['empl_ea'])) ? '0' : $_POST['empl_ea'],
        'empl_sa' => (empty($_POST['empl_sa'])) ? '0' : $_POST['empl_sa'],
        'empl_lta'     => (empty($_POST['empl_lta'])) ? '0' : $_POST['empl_lta'],
        'empl_pt' => (empty($_POST['empl_pt'])) ? '0' : $_POST['empl_pt'],
        'empl_gi' => (empty($_POST['empl_gi'])) ? '0' : $_POST['empl_gi'],
        'empl_pf' => (empty($_POST['empl_pf'])) ? '0' : $_POST['empl_pf'],
        'empl_esi' => (empty($_POST['empl_esi'])) ? '0' : $_POST['empl_esi'],
        'empl_l_a' => (empty($_POST['empl_l_a'])) ? '0' : $_POST['empl_l_a'],
        'empl_it' => (empty($_POST['empl_it'])) ? '0' : $_POST['empl_it']);
    $sal_structure =json_encode($kv_sal_structure);

Here i got check box vaules and make it as array and processed as array, than i tried to save it on database, but while saving into the database, it looks like the following structue.

html "&quote " instead of double quotes.

How can i save the data like

{"empl_hra":"1","empl_ca":"1","empl_fa":"0","empl_ma":"0","empl_ea":"0","empl_sa":"0","empl_lta":"0","empl_pt":"0","empl_gi":"0","empl_pf":"0","empl_esi":"0","empl_l_a":"0","empl_it":"0"}

Help me to solve it.