Loop through and echo all the values of an array

Question

I have an array, print_r($badges); shows:

Array ( [0] => Array ( [0] => foobar [2] => foobar2 [4] => foobar3 ) )

I want to loop through and print all the values:

$arrlength = count($badges);

for($x=0;$x<$arrlength;$x++)
  {
  echo $badges[$x];
  echo "<br/>";
  }

But it is not working. What am I doing wrong?

You ask *"What am I doing wrong?"* which so far is not answered: What you really do wrong is that you don't have enabled error reporting to the highest level looking for actual warnings and notices while you develop. You can highly benefit from these. See the following reference question we have on this website: [How to get useful error messages in PHP?](http://stackoverflow.com/q/845021/367456). — hakre, Oct 26 '14 at 16:41
@hakre...not having error reporting enabled isn't "wrong". Not best practice, sure, but it has nothing to do with why the code doesn't work. — rnevius, Oct 26 '14 at 16:44

score 3 · Accepted Answer · answered Oct 26 '14 at 16:38

3

You have nested arrays. As a result, you need to target the first item of the parent array (at index [0]), and then loop through the values in the child array:

foreach ( $badges[0] as $badge ) {
    echo $badge . '<br>';
}

answered Oct 26 '14 at 16:38

rnevius

26,578
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58
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lol, we had exactly the same approach at exactly the same time. :-) – arkascha Oct 26 '14 at 16:39
Ha, I nicked you by 8 seconds. ;-) – rnevius Oct 26 '14 at 16:39
1

Indeed. Congratulations! – arkascha Oct 26 '14 at 16:40
Cheers guys! Works fine. Which answer should I accept? :) – Henrik Petterson Oct 26 '14 at 16:41
1

Both! If only...I answered slightly ahead; but we're both right. – rnevius Oct 26 '14 at 16:42

score 2 · Answer 2 · answered Oct 26 '14 at 16:38

2

Your problem is that $badges actually holds an array inside an array.

Here is the the working and simplified code:

foreach ($badges[0] as $badge) {
  echo $badge;
  echo "<br/>";
}

answered Oct 26 '14 at 16:38

arkascha

41,620
7
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90

score 1 · Answer 3 · answered Oct 26 '14 at 16:42

You have a nested array--that is why your print_r shows a Array ( [0] => Array ( [0] =>. Additionally, you only have even-numbered keys in your array, so using for ($x = 0; $x < $arrlength; $x++) is not going to be an optimal solution. You'd be better off with foreach, which iterates through each array element. Access the inner array using $badges[0], and then iterate through it:

foreach ($badges[0] as $k => $v) {
    echo "key: $k, value: $v" . PHP_EOL;
}

Output:

key: 0, value: foobar
key: 2, value: foobar2
key: 4, value: foobar3

Loop through and echo all the values of an array

3 Answers3