使用PHP cURL提交表单，多个具有相同名称的复选框

Question

I am trying to submit an external form using PHP cURL. All form fields are working fine, except a problem I have with multiple checkboxes with the same name.

<input type="checkbox" name="same_name" value="value_1">
<input type="checkbox" name="same_name" value="value_2">
<input type="checkbox" name="same_name" value="value_3">

I have no problem with passing ONE of the checkboxes in the cURL request. In my POST string, I just do:

curl_setopt($ch, CURLOPT_POSTFIELDS, '...&same_name=value_1');

But now, I want to submit the form with multiple boxes checked. I tried the suggestion in the comments on this StackOverflow post:

curl_setopt($ch, CURLOPT_POSTFIELDS, '...&same_name[]=value_1&same_name[]=value_2');

But then I get a response which is based on no checked checkboxes at all, ergo it doesn't work.

Basically, how can I submit such an array correctly in this request? Who can point me in the right direction?

Answer 1

Hmm, it's really weird. I just tried to setup my own page (this one is external) with the following code, and it indeed seemed impossible to select more than one value:

<form method="post">
 <input type="checkbox" name="same_name" value="1">Value 1<br />
 <input type="checkbox" name="same_name" value="2">Value 2<br />
 <input type="checkbox" name="same_name" value="3">Value 3<br />
 <input type="submit">
</form>
<?php
if(isset($_POST))
{
 print_r($_POST);
}
?>

But after some tweaking, I think I got it working anyhow with ..&same_name=value_1&same_name=value_2.

I don't know HOW they do it on their serverside, but it appears to work!