当表单有多个相似字段时，有没有办法只发送相关数据？

Question

I'm trying to recreate a "commentary section" on my project. I have a loop to display many "posts" and each post has it's own comment section, all inside the same Form. because of that I end up having multiple fields with similar names (i.e button1, button2, button3, etc etc etc, one for each post). Is it possible to have one isset($post['button']) that fits all and only brings the info related to the one I clicked?

I could have each post be a separate Form but then I would have do re-do a good portion of what I did so far. I was hoping there's a way around it

that's what I have:

input type='text' name='post_comment".$k."' class='form-control' value=''
input type='submit' class='btn' name='postComment".$k."' value='Comment'


...


if(isset($post['postComment'])){
   //do something
}

If I hardcode $k into my isset (i.e isset($post['postComment34'])) everything works as I wanted. Is it possible to have my isset accept any 'postCommentxx'?

Answer 1

You really need to use an array with matching indexes:

<input type='text' name='post_comment[$k]' . . . 
<input type='submit' name='postComment[$k]' . . .

Then you can use the index of the submit to get the text:

if(isset($post['postComment'])){
    $key  = key($_POST['postComment']);
    $text = $_POST['post_comment'][$key];
}

I would change postComment to something like submit as it is confusing to have variables of the same name just slightly different.