build php array using jquery

Question

i have a select box where in it has a list of items and he enters value for each selected option and saves it . i have written a function like.

$('.add_recordings').click(function () {
    if (($('#recordings_name').val() != '') && ($('#recordings_value').val() != '')) {
        if ($('#recordings').val() == '') {
            var result = $('#recordings_name').val() + '=' + $('#recordings_value').val();
            $('#recordings').html(result);

            var result1 = $('#recordings_name').val() + '=>' + $('#recordings_value').val();
            $('#recordings_array').val(result1);
        }
        else {
            var result = ', ' + $('#recordings_name').val() + '=' + $('#recordings_value').val();
            $('#recordings').append(result);

            var result1 = ', ' + $('#recordings_name').val() + '=>' + $('#recordings_value').val();
            alert(result1);
            $('#recordings_array').append(result1);
        }
    }

});

the append function for recordings_array is not working, its a input of type text.

what i am trying to do is to build an php array using jquery ,so that it can be passed in $_POST.. is there any better method to do this?

Do you want to send the data via Ajax?

Felix Kling
– Felix Kling

2010-07-07 06:35:48 +00:00
Commented Jul 7, 2010 at 6:35 — Felix Kling
– Felix Kling, Commented Jul 7, 2010 at 6:35

Reigel Gallarde · Accepted Answer · 2010-07-07 07:09:51Z

2

the append function for recordings_array is not working, its a input of type text.

why not set its value instead of appending?

$('#recordings_array').val(result1);

Edit

if you want to append value, it's easy on jQuery 1.4

$('#recordings_array').val(function(i,val){
    return val + result1; 
    // this will get the current value of the input (val), 
    // add result1, then return the result as the new value of the input
});

below jQuery 1.4

$('#recordings_array').val($('#recordings_array').val() + result1);

edited Jul 7, 2010 at 7:09

answered Jul 7, 2010 at 6:35

Reigel Gallarde

65.4k21 gold badges126 silver badges142 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Hacker Over a year ago

see i need to build and array like a=>b, b=>c so i need an append function to append each of key=>value pair. select box is list of 10 items . he selects 1 options and enters value for it and then he selects 2nd option and enters value for it and clicks on add. so on click of add i need to do this.

Felix Kling · Accepted Answer · 2010-07-07 07:11:59Z

If you are not sending any other data and you send it via Ajax, I would do it totally differently:

Create a global records object (functioning as associative array):

var records = {};

and you just add the values to this object when the click occurs:

$('.add_recordings').click(function () {
    if (($('#recordings_name').val() != '') && ($('#recordings_value').val() != '')) {
            records[$('#recordings_name').val()] = $('#recordings_value').val();
    }
});

Then you send it, e.g. with ajax():

$.ajax({
   type: "POST",
   url: "some.php",
   data: records,
   success: function(msg){
     /...
   }
});

records will be transformed to a query string like

recordnameA=recordvalue&recordnameB=recordvalue

and on the PHP site you already have all these values in an array:

$_POST['recordnameA']

Of course it also works if you sent other data via POST in addition, you can remove this data from the array after processing it with unset($_POST['otherdata']).

Note: It is only confusing to build the PHP array string on the client side and you would have to evaluate it, e.g. with eval(). But you cannot ensure that the string you get only contains an array, the user could have manipulated it and you have a potential security hole.

Collectives™ on Stack Overflow

build php array using jquery

2 Answers 2

1 Comment

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Related