convert php array to string

Question

I'm trying to convert a PHP array to a string. This is what the array looks like when I print_r:

Array (
  [0] => Array (
           [0] => Some text
         ) 
  [1] => Array (
           [0] => some more text
         ) 
  [2] => Array (
           [0] => SomeText
         )
)

Here's the code I'm trying to use:

foreach($a as $b){
        $c.= ", $b";
}

But that keeps coming back with Array Array Array.

I dont understand why would anyone downvote without saying any reason. — Kathir, May 15 '15 at 20:37
@AbraCadaver...so can you remove the downvote now that mine was correct :P — Devon Bessemer, May 15 '15 at 20:46
I would argue that the solution provided in the linked duplicate overcomplicates things for this question. — Devon Bessemer, May 15 '15 at 20:56
@Devon *I would argue* Don't argue, if you disagree and say that the dupe wouldn't answer OP's question, then press the reopen button. — Rizier123, May 15 '15 at 20:57
@Rizier123, already did. But I doubt it's going to get re-opened, my simple solution was downvoted 2 times before you correctly indented the array. Thanks for the indentation by the way, I really screwed the pooch on my attempt to indent it. — Devon Bessemer, May 15 '15 at 20:58

score 1 · Answer 1 · answered May 15 '15 at 20:42

Just initialize your string and then go through each value with array_walk_recursive() and append it to the string. At the end just remove the last comma with rtrim():

$str = "";
array_walk_recursive($arr, function($v)use(&$str){$str .= $v . ",";});
echo $str = rtrim($str, ",");

Advantages? It doesn't matter how many dimensions your array has.

score 0 · Accepted Answer · answered May 15 '15 at 20:34

0

foreach($a as $b){
        $c.= ", ".$b[0];
}

What you have is actually a multidimensional array. So $b is still an array in this scenario and 0 is the offset you need to retrieve, so therefore you need $b[0].

answered May 15 '15 at 20:34

Devon Bessemer

34,461
9
69
95

AbraCadaver · Answer 3 · 2015-05-15T21:09:38.990

0

So given the sample array, it is multi-dimensional. If you want to display the inner array values separated by commas:

foreach($a as $v) {
    echo implode(', ', $v);
}

If all need to be joined into a comma separated list then:

foreach($a as $v) {
    $result[] = implode(', ', $v);
}
echo implode(', ', $result);

edited May 15 '15 at 21:09

answered May 15 '15 at 20:37

AbraCadaver

78,200
7
66
87

I think you're first example is wrong in this case. They are stored in offsets 0,1,2 not all under the first offset 0. – Devon Bessemer May 15 '15 at 20:40
Yes, I hate when it's not indented. – AbraCadaver May 15 '15 at 20:42
Yeah, I guess I was wrong, I just indented it. It was not how I thought it was. – Devon Bessemer May 15 '15 at 20:42
Oh nevermind, I was right, lol. I just messed up the indentation... wow confusing post. – Devon Bessemer May 15 '15 at 20:45
2

this would still miss a comma between array entries. – Kathir May 15 '15 at 20:48
@Kathir: If that's what they want kinda hard to tell. Edited... – AbraCadaver May 15 '15 at 21:10

score 0 · Answer 4 · answered May 15 '15 at 20:38

0

That is basically and array that contains arrays, so you need to iterate over the inner arrays.

    foreach($a as $b){
    // b is array here
      foreach($b as $actualValues){
      $c.= ",".$actualValues[0];
      }
    }

answered May 15 '15 at 20:38

Danyal Sandeelo

12,196
10
47
78

score -2 · Answer 5 · answered May 15 '15 at 20:34

-2

You have got an Array, consisting of Arrays with one Element containing your Text. So you are trying to print an Array which contains your string. Try it like this:

foreach($a as $b){
    $c.= ", ".$b[0];
}

answered May 15 '15 at 20:34

Speni

32
5

convert php array to string

5 Answers5