Php array index [closed] - php

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I have a array containing other arrays(sub arrays). I need to get index of subarray that consist specific value of a key. For example. Here is my array:
Array
(
[0] => Array
(
[id] => 353
[name] => account_2
[ips] =>
[tech_prefix] =>
[password] =>
[id_voip_hosts] =>
[proxy_mode] =>
[auth_type] => ani
[ani] => 526466
[accname] =>
[protocol] =>
[port] =>
[orig_enabled] => 1
[term_enabled] =>
[orig_capacity] =>
[term_capacity] =>
[orig_rate_table] =>
[term_rate_table] =>
[id_dr_plans] =>
[orig_groups] =>
[term_groups] =>
[notes] =>
)
[1] => Array
(
[id] => 352
[name] => account_3
[ips] =>
[tech_prefix] =>
[password] =>
[id_voip_hosts] =>
[proxy_mode] =>
[auth_type] => ani
[ani] => 1345436
[accname] =>
[protocol] =>
[port] =>
[orig_enabled] => 1
[term_enabled] =>
[orig_capacity] =>
[term_capacity] =>
[orig_rate_table] =>
[term_rate_table] =>
[id_dr_plans] =>
[orig_groups] =>
[term_groups] =>
[notes] =>
)
[2] => Array
(
[id] => 354
[name] => account_4
[ips] =>
[tech_prefix] =>
[password] =>
[id_voip_hosts] =>
[proxy_mode] =>
[auth_type] => ani
[ani] => 472367427
[accname] =>
[protocol] =>
[port] =>
[orig_enabled] => 1
[term_enabled] =>
[orig_capacity] =>
[term_capacity] =>
[orig_rate_table] =>
[term_rate_table] =>
[id_dr_plans] =>
[orig_groups] =>
[term_groups] =>
[notes] =>
)
)
What I need. For example I need to delete from the array subarray [2]. I know a way with unset($myarray[2]) but how can I get this index [2]. If I know only [ani] key value 472367427. How to get this "[2]" in var to insert it in unset command.
If I would need to delete subarray that have a key [ani] that is = 1345436(it is in array [1]). Is there a way to search index of array by value of a key.
Again, how to find this index [2] or [1] by [ani] key in multidimensional array?
Thanks!

Answer 1

I think this should work (not tested - but you get the idea)
foreach ($arrays as $key => $item)
{
if ($item['ani'] === '472367427')
{
unset($arrays[$key]);
}
}

Answer 2

There are several ways of going about this, but array_filter is probably the most scalable. You will need to create a callback function which searches for values you want to get rid of and then use it as the filter for the array:
function filterCallback($value) {
if($value['ani'] == "472367427") {
return false;
} else {
return true;
}
}
$array = array_filter($array,'filterCallback');
The advantage to this is that you can abstract your filtering logic (and make it more complex) without having to do it within a foreach loop.
See http://www.php.net/manual/en/function.array-filter.php

Answer 3

$remove = 472367427;
foreach($your_array as $key => $values) {
if(!empty($values['ani'] && $values['ani'] == $remove) {
unset($your_array[$key]);
}
}

Answer 4

If you already know the ani value you are looking for:
$yourani = 'Your known ani value';
foreach($myarray AS $array){
if($array['ani'] == $yourani){
unset($array);
}
}

Answer 5

You can use array_search to get the index and unset the element like this
$a = array('one', 'two', 'three', 472367427, 'four', 'five');
unset($a[array_search(472367427, $a)]);