PHP getting dynamic $_POST content

Question

So I'm trying to get dynamic data from the $_POST array. The $_POST array looks like this after the form submit:

Array
(
    [teams1member3] => on
    [teams1member4] => on
    [teams1member7] => on
    [teams1member8] => on
    [teams2member1] => on
)

Now I'm not entirely sure how I can access these, the teams can be any number and the same goes for a member. Is there a way to "read" the [teams1member3]?

I tried looping through the $_POST variable with a foreach loop (foreach($_POST as $post)), but this only gets the value (on). If I'm able to get the teams1member3, teams1member4, etc. I should be able to continue.

Anyone that can help me out? Much appreciated!

moonwave99 · Accepted Answer · 2017-04-08 14:31:19Z

3

You should use the $key => $value syntax:

foreach($_POST as $key => $post){
   // $key is what you need
}

But you should rather serialise your $_POST data better, consider using the following JSON notation:

{
  "teams" : [
    {
      "id": 1,
      "members": [3, 4, 7, 8]
    },
    {
      "id": 2,
      "members": [1]
    }
  ]
}

answered Apr 8, 2017 at 14:31

moonwave99

22.9k3 gold badges48 silver badges71 bronze badges

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

2 Comments

wesley221 Over a year ago

So I have a bunch of the following checkboxes: <input type="checkbox" name="teams1member1" />. Depending on whether they are checked or not I want them to be visible in an array. Is this possible to do through HTML or am I going to have to do something with JS/PHP to make this possible?

moonwave99 Over a year ago

w/o JSON, check this.

ghostprgmr · Accepted Answer · 2017-04-08 14:31:28Z

2

foreach ($_POST as $key => $value) {
    // ...
}

$key will contain array keys (what you need), $value - string "on".

answered Apr 8, 2017 at 14:31

ghostprgmr

4882 silver badges11 bronze badges

Comments

Youn Elan · Accepted Answer · 2017-04-08 14:33:41Z

1

if you just use foreach($_POST as $value) , you will only get the values - in your case on and off

However, if you want the actual field name, you have to specify key and value in your foreach:

foreach($_POST a $key => $value) {
  //$key contains teammember
  //$value contains on
}

answered Apr 8, 2017 at 14:33

Youn Elan

2,4623 gold badges26 silver badges33 bronze badges

Collectives™ on Stack Overflow

PHP getting dynamic $_POST content

3 Answers 3

2 Comments

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

2 Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related