Evo_x Evo_x - 5 months ago 7
PHP Question

Html/PHP - Form - Input as array

I got a form like this

<form>
<input type="text" class="form-control" placeholder="Titel" name="levels[level]">
<input type="text" class="form-control" placeholder="Titel" name="levels[build_time]">

<input type="text" class="form-control" placeholder="Titel" name="levels[level]">
<input type="text" class="form-control" placeholder="Titel" name="levels[build_time]">

</form>


What I'd like to have as $_POST output is an array like

Array (
[1] => Array ( [level] => 1 [build_time] => 123 )
[2] => Array ( [level] => 2 [build_time] => 456 )
)


I know I could do something like name="levels[1][build_time]" and so on but since these elements get added dynamically, it would be hard to add an index. Is there any other way?

EDIT:

As suggested, I changed my form. I also included my whole HTML now, because I think I'm missing something here. My HTML now:

<div class="form-group">
<label class="col-md-2">Name(z.B. 1)</label>
<div class="col-md-10">
<input type="text" class="form-control" placeholder="Titel" name="levels[][level]">
</div>

<label class="col-md-2">Bauzeit(In Sekunden)</label>
<div class="col-md-10">
<input type="text" class="form-control" placeholder="Titel" name="levels[][build_time]">
</div>
</div>

<div class="form-group">
<label class="col-md-2">Name(z.B. 1)</label>
<div class="col-md-10">
<input type="text" class="form-control" placeholder="Titel" name="levels[][level]">
</div>

<label class="col-md-2">Bauzeit(In Sekunden)</label>
<div class="col-md-10">
<input type="text" class="form-control" placeholder="Titel" name="levels[][build_time]">
</div>
</div>


The output I get now is:

[levels] => Array (
[0] => Array ( [level] => 1 )
[1] => Array ( [build_time] => 234 )
[2] => Array ( [level] => 2 )
[3] => Array ( [build_time] => 456 )
)


Edit 2:

As suggested in your edit, I edited my form and moved the square brackets to the end of the name. The output I get now is:

[levels] => Array (
[level] => Array (
[0] => 1
[1] => 2
)
[build_time] => Array (
[0] => 234
[1] => 456
)
)


I guess that would kinda work but it still looks complicated. No better way?

Answer

Simply add [] to those names like

 <input type="text" class="form-control" placeholder="Titel" name="levels[level][]">
 <input type="text" class="form-control" placeholder="Titel" name="levels[build_time][]">

Take that template and then you can add those even using a loop.

Then you can add those dynamically as much as you want, without having to provide an index. PHP will pick them up just like your expected scenario example.

Edit

Sorry I had braces in the wrong place, which would make every new value as a new array element. Use the updated code now and this will give you the following array structure

levels > level (Array)
levels > build_time (Array)

Same index on both sub arrays will give you your pair. For example

echo $levels["level"][5];
echo $levels["build_time"][5];