PHP 表单插入带有动态输入的数据数组

Question

Using PHP I'm building a web form that will allow people to submit details of network devices registered to them, these details are saved in a mysql database. I want to allow users to submit multiple devices on the same form.

The details I need to collect are;

• make
• model
• mac address

A user may need to register 20 identical devices, ie the same make and model, the only field that will change is mac address. Rather than ask users to submit 20 separate forms I have a button 'Add Similar Device', using JQuery this creates a new mac address input (array type).

All is working as expected but I'm not sure if i'm doing it 'the right way', so I was hoping for some advice - my code is below;

HTML

<form id="myForm" method="POST" action="">
    <input id="make" name="make" type="text">
    <input id="model" name="model" type="text">
    <input id="mac[]" name="mac[]" type="text">
    <!-- example of two dynamically added mac inputs
    <input id="mac[]" name="mac[]" type="text">
    <input id="mac[]" name="mac[]" type="text">
    -->
    <input id="submit" name="submit" type="submit">
</form>
<button class="add-similar" id="add-similar" type="button"></button>

JQuery

<script> 
$(document).ready(function() {
    var maxField = 10; 
    var addButton = $('.add-similar'); 
    var html = '<input id="mac[]" name="mac[]" type="text">';
    var x = 1;
    $(addButton).on('click', function(e) {
        if (x < maxField) {
            x++;
            $(wrapper).append(html); 
        }
    });
}); 
</script>

PHP

if(isset($_REQUEST["submit"])){
    $make = $_POST['make'];
    $model = $_POST['model'];
    $mac = $_POST['mac'];
    for ($i = 0; $i < count($mac); $i++) {
        // insert data into db
    }
}

For every additional mac address input dynamically added, I need to create a new, unique record in the db. If two dynamic mac addresses are added, the db table should look like this;

+----+-------+---------+--------------+
| id | make  | model   | mac          |
+----+-------+---------+--------------+
| 1  | Apple | Macbook | 112233445566 |
+----+-------+---------+--------------+
| 2  | Apple | Macbook | 998877665544 |
+----+-------+---------+--------------+
| 3  | Apple | Macbook | 887766225533 |
+----+-------+---------+--------------+

Am I approaching this the right way?

Answer 1

Regarding Bulk Insertion: You need to build the sql statement like INSERT INTO table(make, model, mac) VALUES("Apple", "Macbook", 123456),("Apple", "Macbook", 245678),("Apple", "Macbook", 345678); You can get the idea to build the statement from the below code block. NOTE: Also make sure to sanitize the $make, $model, $mac variables Might help

$make = $_POST['make'];
$model = $_POST['model'];
$mac = $_POST['mac'];


$length = count($mac);
$values = [];
for ($i = 0; $i < $length; $i++) {
    $values[] = '("' . $make . '","' . $model . '",' . $mac[$i] .')';
}

$query = "INSERT INTO table(make, model, mac) VALUES". implode(",", $values);

Answer 2

I have a solution for you. Please use Ajax and FormData.

First, change type submit to button and put id to this button.

Second

$(id).on('click', function() {
  var fd = new FromData();

  var count_mac = $('input[name="mac[]"]').length;
  fd.append('count_mac', count_mac);

  $('input[name="mac[]"]').each(function(index){
     var data = $(this).val();

     //Pass to PHP file with $_POST['mac0'],$_POST['mac1'],...
     fd.append('mac'+ index, data);
  });

  //Ajax code here
  jQuery.ajax({
     url: 'example_file.php',
     type: 'post',
     data: fd,
     contentType: false,
     processData: false,
     success: function( results ) {
       location.reload();
     }
  });
});