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

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;

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

A very succinct approach would be

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

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