Php 在多维数组中搜索所有键

我想在多维数组中搜索所有键以查找特定字符串。我只是想知道它是否存在，没别的了。我想知道在任何阵列中是否存在访问者的IP

是否有一个php函数或方法可以用来实现这一点，我尝试过的每个函数或方法都会返回false。（在数组中，数组搜索，数组过滤器）

我希望避免循环遍历每个键和一组值

示例数组

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谢谢

永远无法避免循环：-）

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或者，您可以编写自己的递归函数，避免使用全局函数。这是最直接的方法。

我可以想象一种你不必循环的方法（至少你自己）：

它正确返回值为

109.148.183.1

的键（

21

、

22

和

23

）：

$term = '2011-04-28 [0-9]{2}:[0-9]{2}:[0-9][13579]';
$result = array_map('unserialize', preg_filter('~' . $term . '~', '$0', array_map('serialize', $data)));

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

---

由于这是一个正则表达式，我们可以进行更强大的搜索，例如搜索所有秒数为奇数的

2011-04-28

日期：

function search($array, $searchString){
   foreach($array as $key=>$val){
        if(in_array($searchString, $val)) return true;
   }
   return false;
}

//use it like so:
if(search($array, '109.148.183.1')){/*do something*/}

$matching_keys = array();

function search ($item, $key) {
  global $matching_keys();
  // do your testing here, stuff matches in $matching_keys, or however you wanna do it
}
array_walk_recursive($array, 'search');

$term = preg_quote('109.148.183.1', '~'); // lets make sure it's safe
$result = array_map('unserialize', preg_filter('~' . $term . '~', '$0', array_map('serialize', $data)));

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

$data = array
(
    21 => array
    (
        'click_id' => 21,
        'ip_addr' => '109.148.183.1',
        'dtime' => '2011-04-28 17:56:57',
        'url_id' => 11,
    ),

    22 => array
    (
        'click_id' => 22,
        'ip_addr' => '109.148.183.1',
        'dtime' => '2011-04-28 17:57:05',
        'url_id' => 12,
    ),

    23 => array
    (
        'click_id' => 23,
        'ip_addr' => '109.148.183.1',
        'dtime' => '2011-04-28 18:42:42',
        'url_id' => 10,
    ),
);

Array
(
    [21] => Array
        (
            [click_id] => 21
            [ip_addr] => 109.148.183.1
            [dtime] => 2011-04-28 17:56:57
            [url_id] => 11
        )

    [22] => Array
        (
            [click_id] => 22
            [ip_addr] => 109.148.183.1
            [dtime] => 2011-04-28 17:57:05
            [url_id] => 12
        )

    [23] => Array
        (
            [click_id] => 23
            [ip_addr] => 109.148.183.1
            [dtime] => 2011-04-28 18:42:42
            [url_id] => 10
        )
)

$term = '2011-04-28 [0-9]{2}:[0-9]{2}:[0-9][13579]';
$result = array_map('unserialize', preg_filter('~' . $term . '~', '$0', array_map('serialize', $data)));

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

Array
(
    [21] => Array
        (
            [click_id] => 21
            [ip_addr] => 109.148.183.1
            [dtime] => 2011-04-28 17:56:57
            [url_id] => 11
        )

    [22] => Array
        (
            [click_id] => 22
            [ip_addr] => 109.148.183.1
            [dtime] => 2011-04-28 17:57:05
            [url_id] => 12
        )
)