Split array into key => array() [duplicate]

Question

Consider the following array:

$array[23] = array(
  [0] => 'FOO'
  [1] => 'BAR'
  [2] => 'BAZ'
);

Whenever I want to work with the inner array, I do something like this:

foreach ($array as $key => $values) {
  foreach ($values as $value) {
    echo $value;
  }
}

The outer foreach-loop is there to split the $key and $value-pairs of $array. This works fine for arrays with many keys ([23], [24], ...)but seems redundant if you know beforehand that $array only has one key (23 in this case). In a case as such, isn't there a better way to split the key from the values? Something like

split($array into $key => $values)
foreach ($values as $value) {
  echo $value;
}

I hope I made myself clear.

jeroen · Accepted Answer · 2012-04-18 18:20:46Z

2

reset returns the first element of you array and key returns its key:

$your_inner_arr = reset($array);
$your_key = key($array);

edited Apr 18, 2012 at 18:20

answered Apr 18, 2012 at 18:11

jeroen

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Comments

Matt Moore · Accepted Answer · 2012-04-18 18:11:34Z

1

Yea, just get rid of your first foreach and define the array you're using with the known $key of your outter array.

foreach ($array[23] as $key =>$val):
   //do whatever you want in here
endforeach;

answered Apr 18, 2012 at 18:11

Matt Moore

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Comments

rid · Accepted Answer · 2012-04-18 18:12:12Z

1

If an array has only one element, you can get it with reset:

$ar = array(23 => array('foo', 'bar'));
$firstElement = reset($ar);

edited Apr 18, 2012 at 18:12

rid

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answered Apr 18, 2012 at 18:11

phihag

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Comments

Fazle Rabbi · Accepted Answer · 2013-05-22 01:27:15Z

0

A very succinct approach would be

foreach(array_shift($array) as $item) {
    echo $item;
}

answered May 22, 2013 at 1:27

Fazle Rabbi

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