Foreach comes back as Array Array

Question

Not sure what I'm doing wrong with this one, but when I attempt to do a foreach loop with a variable, it comes back with Array Array.

PHP Code:

  <?php foreach ($thing as $t) : ?>
    <?php $thisStuff = $t[stuff];  ?>
    <?php echo $thisStuff; ?>
  <?php endforeach; ?>

Output: Array Array

Could this be possibly that there is another array within $thisStuff? If so would I loop through that data?

_Could this be possibly that there is another array within $thisStuff?_ Yes. `print_r($thing);` — AbraCadaver, Aug 14 '17 at 17:49
I did and it comes back with a bunch of other arrays. So, how would I structure that data? That's what I'm confused about since I've never really worked with nested arrays. — ultraloveninja, Aug 14 '17 at 17:51
Possible duplicate of [php foreach with multidimensional array](https://stackoverflow.com/questions/6413589/php-foreach-with-multidimensional-array) — Shane A. Workman, Aug 14 '17 at 18:02

score 1 · Answer 1 · answered Aug 14 '17 at 19:47

If you have a multidimensional array you'll need to use a recursive function.

an example might be this

function unfoldArray($array,$output = array()) {
    if(is_object($array)) {
        $array = (array)$array;
    }
    foreach($array as $key => $value) {
        if(is_array($value) || is_object($value)) {
            //$output[] = $key;
            $output = unfoldArray($value,$output);
        } else {
            $output[] = $value;
        }
    }
    return $output;
}

the above function, given an array like

$array = array(
    "one",
    "two",
    "three" => array("A","B","C"),
    "four" => array("X","Y","Z"),
    "five",
    "six" => array(
        "sub_one",
        "sub_two",
        "sub_three" => array("sub_A","sub_B","sub_C")
    ),
    "seven"
);
$output = unfoldArray($array);

would return a flat array like this

   // $output 
   [
        "one",
        "two",
        "A",
        "B",
        "C",
        "X",
        "Y",
        "Z",
        "five",
        "sub_one",
        "sub_two",
        "sub_A",
        "sub_B",
        "sub_C",
        "seven"
    ]

you may notice that values "three" and "six" are omitted from the result array because they are key, but if you wan to include them just uncomment the line //$output[] = $key; in the function.

Once you have this array you may just loop with a foreach. This might not be exactly what you need, but should give you a direction to follow.

Awesome, thanks! Yeah, I was messing around with nesting a `foreach` loop in another `foreach` loop and while I'm getting the results it just seems really messy. — ultraloveninja, Aug 15 '17 at 01:18

mitch · Answer 2 · 2017-08-14T18:07:46.670

0

Try with key => value method:

  <?php foreach ($thing as $key => $value) : ?>
    // if $value is array, you need to iterate it the same way (additional foreach)
    <?php echo $value; ?>
  <?php endforeach; ?>

edited Aug 14 '17 at 18:07

answered Aug 14 '17 at 17:54

mitch

2,235
3
27
46

Works for an Associative array. Not a multi-dimensional array. – Shane A. Workman Aug 14 '17 at 18:01
If it's multidimensional array, you need to use another foreach inside this one – mitch Aug 14 '17 at 18:02
to me, it sounds like he has an array of associative arrays...but yes @mitch i agree. – Shane A. Workman Aug 14 '17 at 18:03
Yeah, there are a bunch of nested arrays within other arrays. Sheesh, this is going to be messy. – ultraloveninja Aug 14 '17 at 18:43

Foreach comes back as Array Array

2 Answers2