Remove an array using its key from a nested associative array

Question

I have this array:

$array = array(
    "foo" => "bar",
    "barw"    => "21",
    "bara"    => "22",
    "barq"    => "25",
    "multix" => array(
         "1" => array(
             "ar1" => "food",
             "ar2" => "dr",
             "ar3" => "ch",
             "ar4" => "ju"
         ),
        "2" => array(
             "ar1" => "food",
             "ar2" => "dr",
             "ar3" => "ch",
             "ar4" => "ju"
         ),
    "893" => "bar",
    "563" => "bar",
    "hd8" => "bar",
    "multiv" => array(
         "1" => array(
             "ar1" => "food",
             "ar2" => "dr",
             "ar3" => "ch",
             "ar4" => "ju"
         ),
         "2" => array(
             "ar1" => "food",
             "ar2" => "dr",
             "ar3" => "ch",
             "ar4" => "ju"
         ),
    "tw" => "bar",
    "qa" => "bar",
    "op" => "bar"
    )
    )
);

which I am reading from and writing to like this:

echo '<pre>';
print_r($array);
echo '</pre>';

echo "<br/>";
echo $array['multix']['1']['ar1'].'<br/>';
echo "<br/>";
echo $array['multix']['1']['ar2'].'<br/>';
echo "<br/>";
echo $array['multix']['1']['ar3'].'<br/>';
echo "<br/>";
echo $array['multix']['1']['ar4'].'<br/>';
$array['multix']['1']['ar4'] = "lego";

However, I am unable to delete an array of my choice like:

unset($array['multiv']['1']);

echo '<pre>';
print_r($array);
echo '</pre>';

What should I do to delete the array using its key?

Patrick Evans · Accepted Answer · 2013-09-06 13:02:42Z

3

Your multiv array is inside the multix array so you need to prepend the multix name

unset($array['multix']['multiv']['1']);

you may be setting your array wrong if multiv was supposed to be one up in the index level.

answered Sep 6, 2013 at 13:02

Patrick Evans

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1 Comment

DiMono Over a year ago

To expand on this: after ['multix']['2'] ends, you've reduced the indent on ['893'] but the brackets for ['multix'] are still open. Then, at the bottom, you close two sets of brackets at the same level of indent; the second is for ['multix']. Move one of those closing brackets up before ['893'] and you should be good.

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