Post array of fields to php using jquery

Question

I have array of text box

<input type="text" name="txt[]" id"txt[]" value="test 1" />
<input type="text" name="txt[]" id"txt[]" value="test 2" />
<input type="text" name="txt[]" id"txt[]" value="test 3" />

and wants to post this array to php file using jquery:

$('#submit').click(function() {

        $.ajax({
            type : 'POST',
            url : '<?php echo site_url('projects/create'); ?>',
            data: {
               txt: $('#txt').val()
            },
            success:function (data) {
                $("#log_msg").html(data);
            }          
        });
    });

but it returns undefined

you are using the selector # which is the id. And the id of an textbox is "txt[]" — Jimmy Geers
– Jimmy Geers, Commented May 27, 2012 at 15:40

PHP Ferrari · Accepted Answer · 2012-05-27 16:11:25Z

2

Just write

 <input type="text" name="pro_video[]" id="pro_video" />

$('#submit').click(function() {

var videos = $('input[name^=pro_video]');
        var postData = {
            vdo: [], // the videos is an array
        };
        $.each(videos, function(index, el) {
            // push the value in the vdo array
            postData.vdo.push($(el).val());
        });

        $.ajax({
            type : 'POST',
            url : '<?php echo site_url('projects/create'); ?>',
            data: {
               pro_video : postData
            },
            success:function (data) {
                $("#log_msg").html(data);
            }          
        });
    });

answered May 27, 2012 at 16:11

PHP Ferrari

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Comments

Ibrahim Azhar Armar · Accepted Answer · 2012-05-27 15:31:17Z

0

you can use jQuery serialzie() to fetch the form values from html form.

for example :

<form id="testForm" method="post">
    <input type="text" name="txt[]" id"txt[]" value="test 1" />
    <input type="text" name="txt[]" id"txt[]" value="test 2" />
    <input type="text" name="txt[]" id"txt[]" value="test 3" />
</form

and to fetch the value from form using jQuery.

$('#testForm').serialize();

answered May 27, 2012 at 15:31

Ibrahim Azhar Armar

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Comments

hannahd · Accepted Answer · 2012-05-27 15:55:41Z

To pass the array from JavaScript to PHP you can use the serialize function from JQuery. You can pass this for the entire form or some selected form elements. For the example you gave it would look like this:

The HTML:

<input type="text" name="txt[]" class="txt" value="test 1" />
<input type="text" name="txt[]" class="txt" value="test 2" />
<input type="text" name="txt[]" class="txt" value="test 3" />

And the Javascript:

$('#submit').click(function() {

    $.ajax({
        type : 'POST',
        url : '<?php echo site_url('projects/create'); ?>',
        data: {
           txt: $('.txt').serialize()
        },
        success:function (data) {
            $("#log_msg").html(data);
        }          
    });
});

This will give your php the string "txt%5B%5D=test+1&txt%5B%5D=test+2&txt%5B%5D=test+3", which it can interpret as an array of those values.

Note that I used class instead of id, since ids are supposed to be unique for each element.

Romain Bruckert · Accepted Answer · 2012-05-27 18:44:53Z

jQuery $(form).serialize() function will help you here !

$('#submit').click(function() {

        $.ajax({
            type : 'POST',
            url : '<?php echo site_url('projects/create'); ?>',
            data: $('#testForm').serialize(),
            success:function (data) {
                $("#log_msg").html(data);
            },
            error: function(x,t,e){
                $("#log_msg").html('An error occured: '+e);
            }
        });
    });

You will get a $_POST nice and clean array in your file (wherever site_url('projects/create') points to). Warning thought, if you add an input submit to that form, serialize() will also post the submit value so you'll have to remove it from the POST array if you plan to insert the array directly in a database. Anyway. ;)

Have fun ! PS: id"txt[]" does not seem to be a correct markup to me... ! id="txt_1". You can only have ONE reference ID in your document and i don't think you can use brackets on markup iding. (someone correct me if I'm wrong..)

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