How to insert multiple inputs with same name in php through ajax

Question

I have html form that allowed to insert multiple input. I am able to insert only first input. How to insert multiple value in php passing through ajax , My HTML form is as below.

<tr>
    <th>ID</th>
    <td><input type="number" id="navid"></td>
</tr>
<tr>
    <th>Menu IN</th>
    <td><input type="text" name="menuin"></input></td>
</tr>
<tr>
    <th>Menu ENG</th>
    <td><input type="text" name="menueng"></input>
    </td>
</tr>

User can add input field dynamically(dynamic add has be done by jquery) It is not problem to pass if only one input group. But I want to pass multiple input if user add more than one.

And I've passed value as

$("#submit").click(function(){
    var navid = $("#navid").val();
    var menuin = $("input[name='menuin']").val();
    var menueng = $("input[name='menueng']").val();
    $.ajax({
        url: 'insert_nav.php',
        type: 'post',
        data: {navid:navid,menuin:menuin,menueng:menueng},
        success: function(data){
            alert(data);
            $('#nav')[0].reset();
        }
    });
});

I've inserted input values passed by ajax as below

if (isset($_POST["navid"]) && !empty($_POST["navid"])) {
        $query1 =$con->prepare("INSERT INTO menu(cid, title, en_title) VALUES (:navid, :menuin, :menueng)");
        $query1->bindParam(':menuin',$_POST["menuin"]);
        $query1->bindParam(':menueng',$_POST["menueng"]);
        $query1->bindParam(':navid', $_POST["navid"]);
        $query1->execute();
        $msg1 = 'Menu has inserted';    
    }

Now I want to insert multiple values. How to do ?

Answer 1

HTML:

<form id="the_form">
<tr>
    <th>ID</th>
    <td><input type="number" name="navid[]" id="navid"></td>
</tr>
<tr>
    <th>Menu IN</th>
    <td><input type="text" name="menuin[]"></input></td>
</tr>
<tr>
    <th>Menu ENG</th>
    <td><input type="text" name="menueng[]"></input>
    </td>
</tr>
<input type="submit" value="Submit Form" id="submit"/>
</form>

I added a name for your ID so that it will be included when you submit the form, I just added a form tag since it was not present in your question.

JS:

  Read about serialize 
  (https://stackoverflow.com/questions/15173965/serializing-and-submitting-a-form-with-jquery-post-and-php)


$("#submit").click(function(){
    var form_data = $("#the_form").serialize();
    $.ajax({
        url: 'insert_nav.php',
        type: 'post',
        data: {form_data:form_data},
        success: function(data){
            alert(data);
            $('#nav')[0].reset();
        }
    });
});

PHP //Since the submitted data is now a collection of an array you'll have to loop through it to save them in the database as you cannot save an array directly in a DB.

if (!empty($_POST["navid"])) {
    for($counter = 0; $counter < sizeof($_POST["navid"]); $counter++){
        $query1 =$con->prepare("INSERT INTO menu(cid, title, en_title) VALUES (:navid, :menuin, :menueng)");
        $query1->bindParam(':menuin',$_POST["menuin"][$counter]);
        $query1->bindParam(':menueng',$_POST["menueng"][$counter]);
        $query1->bindParam(':navid', $_POST["navid"][$counter]);
        $query1->execute();
        $msg1 = 'Menu has inserted'; 
    }    
 }

Answer 2

You have to apply array in input field for multiple input element. And pass array through ajax and insert to database using foreach loop.

HTML

<tr>
    <th>ID</th>
    <input type="number" name="navid[]" id="navid">
</tr>
<tr>
    <th>Menu IN</th>
    <td><input type="text" name="menuin[]"></input></td>
</tr>
<tr>
    <th>Menu ENG</th>
    <td><input type="text" name="menueng[]"></input>
    </td>
</tr>

Ajax

$("#submit").click(function(){
    var navid = [];
    $('input[name="navid[]"]').each( function() {
        navid.push(this.value);
    });
    var menuin = [];
    $('input[name="menuin[]"]').each( function() {
        menuin.push(this.value);
    });
    var menueng = [];
    $('input[name="menueng[]"]').each( function() {
        menueng.push(this.value);
    });
        $.ajax({
            url: 'insert_nav.php',
            type: 'post',
            data: {navid:navid,menuin:menuin,menueng:menueng},
            success: function(data){
                alert(data);
                $('#nav')[0].reset();
            }
        });
});

PHP

foreach ($_POST["navid"] AS $key => $item){               
    $query1 =$con->prepare("INSERT INTO menu(cid, title, en_title) VALUES (:navid, :menuin, :menueng)");
    $query1->bindParam(':menuin',$_POST["menuin"][$key]);
    $query1->bindParam(':menueng',$_POST["menueng"][$key]);
    $query1->bindParam(':navid',$item);
    $query1->execute();
    $msg1 = 'Menu has inserted';     
}