Question

我有一个包含其他数组（子数组）的数组。我需要得到包含键的特定值的子数组的索引。例如。这是我的阵列：

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] => 
    )

)

我需要什么。例如，我需要从数组子阵列[2]中删除。我知道一种未设置的方法（$ myarray [2]），但我怎样才能得到这个索引[2]。如果我只知道[ani]键值472367427.如何在var中将此“[2]”插入到unset命令中。如果我需要删除具有键[ani] = 1345436（它在数组[1]中）的子数组。有没有办法按键的值搜索数组的索引。再次，如何在多维数组中通过[ani]键找到这个索引[2]或[1]？谢谢！

Answer 1

我认为这应该有用（没有经过测试 - 但你明白了）

foreach ($arrays as $key => $item)
{
    if ($item['ani'] === '472367427')
    {
        unset($arrays[$key]);
    }
}

Answer 2

有几种方法可以解决这个问题，但array_filter可能是最具扩展性的。您需要创建一个回调函数来搜索您想要删除的值，然后将其用作数组的过滤器：

function filterCallback($value) {
   if($value['ani'] == "472367427") {
      return false;
    } else {
      return true;
    }
}

$array = array_filter($array,'filterCallback');

这样做的好处是你可以抽象你的过滤逻辑（并使其更复杂），而不必在foreach循环内完成。

请参阅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

如果您已经知道要查找的ani值：

$yourani = 'Your known ani value';

foreach($myarray AS $array){
   if($array['ani'] == $yourani){
      unset($array);
   }
}

Answer 5

您可以使用array_search获取索引，使用unset这样的元素

$a = array('one', 'two', 'three', 472367427, 'four', 'five');
unset($a[array_search(472367427, $a)]);

Php数组索引

5 个答案: