php多維表單數組

Question

如何遍歷此數組並將值分配給變量並將其保存到MySQL？

使用此表單生成以下數組。 我不想使用索引鍵，因為值的數量可能會增加或減少。

<input type="text" name="formB[usr_f_name][]" placeholder="First Name" />
<input type="text" name="formB[usr_l_name][]" placeholder="Last Name" />
<input type="text" name="formB[usr_mobile][]" placeholder="Mobile Number" />






Array

(
    [usr_f_name] => Array
        (
            [0] => first
            [1] => second
        )

    [usr_l_name] => Array
        (
            [0] => 
            [1] => 
        )

    [usr_mobile] => Array
        (
            [0] => 
            [1] => 
        )

    [usr_email] => Array
        (
            [0] => 
            [1] => 
        )

)

這就是我現在所擁有的。 但無法讓它發揮作用

  $id_array = array_keys($_POST['formB']);
  foreach ($id_array as $id){
        $usr_f_name =  mysqli_real_escape_string ($_POST['usr_f_name'][$id]);
        $usr_l_name =  mysqli_real_escape_string ($_POST['usr_l_name'][$id]);
        $usr_mobile =  mysqli_real_escape_string ($_POST['usr_mobile'][$id]);
$sql = "INSERT INTO formB SET f_name = '$usr_f_name', l_name = '$usr_l_name', mobile  ='$usr_mobile'";
    }

Answer 1

你可以做點什么

foreach ($_POST['formB']['usr_f_name'] as $id=>$value){//loop over the values of the usr_f_name and then use the index of that to get the other values
        $usr_f_name =  mysqli_real_escape_string ($_POST['formB']['usr_f_name'][$id]);
        $usr_l_name =  mysqli_real_escape_string ($_POST['formB']['usr_l_name'][$id]);
        $usr_mobile =  mysqli_real_escape_string ($_POST['formB']['usr_mobile'][$id]);
$sql = "INSERT INTO formB SET f_name = '$usr_f_name', l_name = '$usr_l_name', mobile  ='$usr_mobile'";
    }

Answer 2

嘗試這個...

$array = array(     
    'usr_f_name'    => array('first','second'),
    'usr_l_name'    => array('',''),
    'usr_mobile'    => array('',''),
    'usr_email'     => array('',''),
);//Your array

$sql= '';
for($i=0;$i<count($array['usr_f_name']);$i++) 
$sql .= "INSERT INTO formB SET f_name = '".$array['usr_l_name'][$i]."', l_name = '".$array['usr_l_name'][$i]."', mobile  ='".$array['usr_mobile'][$i]."';";