Unable to send array through Jquery.post

Question

So,I have an array of input values:

<input type="text" placeholder="write your Question" id="question[]"  value="" />

and I'm sending this inputs through this code:

    $.post("function.php",{Question:$("#question").serialize()},function(data){
        $("#construct").append(data);
        alert('done');
    });

But when I try to use these values in my PHP,I have some errors.

PHP(function.php):

$Question=htmlentities($_POST['Question'],ENT_QUOTES,"UTF-8");
//line 13
$Quiz->InsertQuestion($Q_id,$Question[0]);
//line 14
$Quiz->InsertQuestion($Q_id,$Question[1]);

the error says:

Notice: Uninitialized string offset: 0 in E:\program file\program\xampp\htdocs\QMS\admin\function.php on line 13

Notice: Uninitialized string offset: 1 in E:\progrram file\program\xampp\htdocs\QMS\admin\function.php on line 14

thanks in advance.

var_dump($_POST['Question']); And btw question[] and question are different ids. — u_mulder
– u_mulder, Commented Sep 6, 2015 at 8:59
@u_mulder I used var_dump and I got:string(0) "" .btw I thought when I want to send an array so I should use question[]! — NavidIvanian
– NavidIvanian, Commented Sep 6, 2015 at 9:04

u_mulder · Accepted Answer · 2015-09-06 09:08:36Z

1

As I said, id="question[]" and id="question" are different ids. If you want to send items as an array you should use name attribute with []:

<input type="text" placeholder="write your Question" name="question[]"  value="" />
<input type="text" placeholder="write your Question" name="question[]"  value="" />

jquery:

// select all fields which names start with "question"
{Question:$("[name^='question']").serialize()}

or even class:

<input type="text" placeholder="write your Question" value="" class="question" />
<input type="text" placeholder="write your Question" value="" class="question" />

jquery:

{Question:$(".question").serialize()}

answered Sep 6, 2015 at 9:08

u_mulder

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1 Comment

NavidIvanian Over a year ago

it seems when I use .serialize() I can't get the complete value

Ahmadbaba46 · Accepted Answer · 2015-09-06 09:01:30Z

0

Change the id of input from "question[]" to "question".

answered Sep 6, 2015 at 9:01

Ahmadbaba46

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3 Comments

aldrin27 Over a year ago

Why did he want to change that if he wants to pass an array of questions?

Ahmadbaba46 Over a year ago

Because it is an id of a DOM content.

NavidIvanian Over a year ago

@Ahmadbaba46 I did it but still failed:-(

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