Storing the output of foreach loop into a variable

Question

I have a foreach loop that will echo out all the selection made by the user from the checkboxes.

I am trying to store the value into a variable called $getCentralArea. However, when I echo $getCentralArea it shows 4 - only the last value of the selected checked box. The correct value that I should get is 1,2,3,4.

if(!empty($_POST['centralArea'])) 
{
    foreach($_POST['centralArea'] as $centralArea) 
    {
        $getCentralValue = $centralArea.","; //Output will be in the following format 1,2,3,4
    }
}else{ $getCentralArea="";}

use this $getCentralValue .= $centralArea.","; for string or create array. — Suchit kumar
– Suchit kumar, Commented Sep 29, 2015 at 4:47

AbraCadaver · Accepted Answer · 2015-09-29 04:52:52Z

1

You could concatenate but that leaves a trailing comma. Also, no need to loop, just implode() the array:

$getCentralValue = implode(',', $_POST['centralArea']);

edited Sep 29, 2015 at 4:52

answered Sep 29, 2015 at 4:47

AbraCadaver

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Comments

mbinette · Accepted Answer · 2015-09-29 04:46:03Z

0

You need to concatenate your $centralAreas to $getCentralValue using the . (or .=) operator, else, it just overwrites $getCentralValue every time you loop:

if(!empty($_POST['centralArea'])) 
{
    foreach($_POST['centralArea'] as $centralArea) 
    {
        $getCentralValue .= $centralArea.","; //Output will be in the following format 1,2,3,4
    }
    $getCentralValue = rtrim($getCentralValue, ",");
} else{ $getCentralArea=""; }

answered Sep 29, 2015 at 4:46

mbinette

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Suchit kumar · Accepted Answer · 2015-09-29 04:50:01Z

0

try like this: Use implode.

either

$result=implode(",",$_POST['centralArea']);//Output will be in the following format 1,2,3,4

or this in case you do not want post variables to use directly.

      $getCentralValue=array();
        foreach($_POST['centralArea'] as $centralArea) 
        {
            $getCentralValue[]= $centralArea; 
        }

        $result=implode(",",$getCentralValue);//Output will be in the following format 1,2,3,4

    echo $result;

answered Sep 29, 2015 at 4:50

Suchit kumar

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Comments

Brij Raj Singh - MSFT · Accepted Answer · 2015-09-29 04:52:54Z

0

I would rather push them in array and later print them using implode

if(!empty($_POST['centralArea'])) 
            {
              $stack = array();
                foreach($_POST['centralArea'] as $centralArea) 
                {
                    array_push($stack,$centralArea);
               }
//print in 1,2,3,4
$comma_separated = implode(",", $stack);

echo $comma_separated;

            }

answered Sep 29, 2015 at 4:52

Brij Raj Singh - MSFT

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