使用php在表单中插入未定义数量的字段

Question

I have some JS which allows me to add as many fields as I like to a form, which then when submitted, has to be saved in a database like this:

title[1] >> video_id[1] ||| title[2] >> video_id[2] ||| ...

What I need is a PHP code which allows me to get all those and put them together like above.

(Note that the number of values can between 1 and 100), and I need to gather all of them together in a string, no matter how many fields there are in the form. The current code I have can't accomplish this because it has a limited number:

$video = $_POST['title[1]'].' >> '.$_POST['video_id[1]'].' ||| '.$_POST['title[2]'].' >> '.$_POST['video_id[2]'].' ||| '.$_POST['title[3]'].' >> '.$_POST['video_id[3]'].' ||| ';

How can I do it?

Answer 1

I believe this should work. First, we create to arrays, one for the titles, one for the video_ids. Then, we concatenate the two together using >> and |||.

$titles = $_POST['title'];
$video_ids = $_POST['video_id'];
$video = "";

for ($i = 0, $l = count($titles); $i < $l; $i++) {
  $video .= "{$titles[$i} >> {$video_ids[$i]} |||";
}