Best way to implode multidimensional array

Question

I see some questions but no work to me.

In a for loop i receive an array like that:

array(1) { [0]=> array(1) { [0]=> string(1) "4" } } 

array(1) { [0]=> array(2) { [0]=> string(1) "3" [1]=> string(1) "4" } }

array(1) { [0]=> array(7) { [0]=> string(1) "1" [1]=> string(1) "2" [2]=> string(2) "30" [3]=> string(2) "43" [4]=> string(2) "65" [5]=> string(2) "53" [6]=> string(3) "634" } }

I need implode that values with "-", my desired output isa string:

4

3-4

2-30-43-65-53-634

I try some ways, but no work, some ideia for do it simple?

Possible duplicate of [Multidimensional Array PHP Implode](https://stackoverflow.com/questions/5249876/multidimensional-array-php-implode) — Obsidian Age, May 02 '18 at 23:30
That question is about implode values from a single column, i need implode values from all columns... @ObsidianAge — MagicHat, May 02 '18 at 23:43

score 2 · Accepted Answer · answered May 02 '18 at 23:43

If it is a two dimensional array and would like to output all elements, you could use a foreach loop and output the implode of each like so:

$mainArray = [
    [4],
    [3, 4],
    [2, 30, 43, 65, 53, 634]];

foreach($mainArray as $key => $secArray){
    echo implode('-', $secArray) . '<br/>';
}

PHP Implode

Notice the return type of implode is a string.

Best way to implode multidimensional array

1 Answers1