Array: How to put value in array index?

Question

I have text boxes with a default value. I want to put them in array output as shown below.

P.S: I need the expected array output (shown below) for my dynamic options in my online quiz program when creating questions

  if(isset($_POST['btn_submit'])
  {
    //code here
  }

<form method="post">
  //question 1 array index [0]
  <input type="text" name="option" value="1">
  <input type="text" name="option" value="2">
  <input type="text" name="option" value="3">

  //question 2 array index [1]
  <input type="text" name="option" value="1">
  <input type="text" name="option" value="2">

  <input type="submit" name="btn_submit">
</form>

EXPECTED ARRAY OUTPUT VALUES:

array ( 
    [0] => 1,2,3 
    [1] => 1,2   
)

EDIT:

It's possible to have the same name but still gets the expected array value? then, put them in one variable array

It's possible to have the same name but still gets the expected array value? u need to use different name if you want to store in different indexes. — devpro
– devpro, Commented Mar 18, 2016 at 6:52
or use like option[0][] and for second one option[1][] with one more index. — devpro
– devpro, Commented Mar 18, 2016 at 7:04

devpro · Accepted Answer · 2016-03-18 07:03:52Z

2

You need to use array in name attribute as:

<form method="post">
<input type="text" name="option_1[]" value="1">
<input type="text" name="option_1[]" value="2">
<input type="text" name="option_1[]" value="3">

<input type="text" name="option_2[]" value="1">
<input type="text" name="option_2[]" value="2">
</form>

PHP:

if(isset($_POST['btn_submit']))
{
    $newArr[] = implode(',',$_POST['option_1']);
    $newArr[] = implode(',',$_POST['option_2']);
    echo "<pre>";
    print_r($newArr);
}

Result:

Array
(
    [0] => 1,2,3
    [1] => 1,2
)

If you just want to use one single name option than use this:

<form method="post">
  <input type="text" name="option[0][]" value="1">
  <input type="text" name="option[0][]" value="2">
  <input type="text" name="option[0][]" value="3">

  <input type="text" name="option[1][]" value="1">
  <input type="text" name="option[1][]" value="2">

  <input type="submit" name="btn_submit">
</form>

PHP:

if(isset($_POST['btn_submit']))
{
  $newArr[] = implode(',',$_POST['option'][0]);
  $newArr[] = implode(',',$_POST['option'][1]);
  echo "<pre>";
  print_r($newArr);
}

edited Mar 18, 2016 at 7:03

answered Mar 18, 2016 at 6:45

devpro

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4 Comments

Van Adrian Cabrera Over a year ago

name="option[]" -- can i use the same name in all text boxes but stil get the expected array output?

devpro Over a year ago

@VanAdrianCabrera: answer udpated

Van Adrian Cabrera Over a year ago

i don't want to implode it. I just want to put it in one variable array then im done. how?

devpro Over a year ago

@VanAdrianCabrera: your expected result is: Array ( [0] => 1,2,3 [1] => 1,2 )

Rohit Raj Verma · Accepted Answer · 2016-03-18 06:48:56Z

2

Replace your code with following code and IT WILL WORK.

 if(isset($_POST['btn_submit'])
  {
    //code here
  }

<form method="post">
  //question 1 array index [0]
  <input type="text" name="option[0][]" value="1">
  <input type="text" name="option[0][]" value="2">
  <input type="text" name="option[0][]" value="3">

  //question 2 array index [1]
  <input type="text" name="option[1][]" value="1">
  <input type="text" name="option[1][]" value="2">

  <input type="submit" name="btn_submit">
</form>

answered Mar 18, 2016 at 6:48

Rohit Raj Verma

13811 bronze badges

Comments

Ali Zia · Accepted Answer · 2016-03-18 06:48:19Z

0

You can simply use [] before the option name to make it as an array.

//question 1 array index [0]
<input type="text" name="option_1[]" value="1">
<input type="text" name="option_1[]" value="2">
<input type="text" name="option_1[]" value="3">

//question 2 array index [1]
<input type="text" name="option_2[]" value="1">
<input type="text" name="option_2[]" value="2">

answered Mar 18, 2016 at 6:48

Ali Zia

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