我有一个带有转发器的表单创建的大型数组，因此数组可以无限大。我需要：
Array
(
[field_22] => Mid-Distance Free
[field_25] => Array
(
[0] => 1
)
[field_23] => Its a freestyle workout
[field_6] => Array
(
[0] => Array
(
[field_7] => 1
[field_8] => 0
[field_9] => 0
[field_10] => Array
(
[0] => Array
(
[field_11] => 6
[field_12] => 50
[field_13] => jumping jacks
[field_14] =>
)
[1] => Array
(
[field_11] => 2
[field_12] => 20
[field_13] => pushups
[field_14] =>
)
[acfcloneindex] => Array
(
[field_11] => 1
[field_12] => 1
[field_13] => pushups
[field_14] =>
)
)
)
[acfcloneindex] => Array
(
[field_7] => 1
[field_8] => 0
[field_9] => 0
[field_10] => Array
(
[acfcloneindex] => Array
(
[field_11] => 1
[field_12] => 1
[field_13] => pushups
[field_14] =>
)
)
)
)
[field_17] => Array
(
[0] => Array
(
[field_7] => 1
[field_8] => 0
[field_9] => 0
[field_10] => Array
(
[0] => Array
(
[field_11] => 5
[field_12] => 100
[field_13] => Freestyle
[field_14] => Descend 1-5
[field_18] => 5
)
[1] => Array
(
[field_11] => 10
[field_12] => 50
[field_13] => Drill
[field_14] => Choice
[field_18] => 5
)
[2] => Array
(
[field_11] => 1
[field_12] => 400
[field_13] => Freestyle
[field_14] => Negative Split
[field_18] => -20
)
[acfcloneindex] => Array
(
[field_11] => 1
[field_12] => 25
[field_13] => Butterfly
[field_14] =>
[field_18] =>
)
)
)
[acfcloneindex] => Array
(
[field_7] => 1
[field_8] => 0
[field_9] => 0
[field_10] => Array
(
[acfcloneindex] => Array
(
[field_11] => 1
[field_12] => 25
[field_13] => Butterfly
[field_14] =>
[field_18] =>
)
)
)
)
[field_19] => Array
(
[0] => Array
(
[field_7] => 1
[field_8] => 0
[field_9] => 1
[field_10] => Array
(
[0] => Array
(
[field_11] => 20
[field_12] => 100
[field_13] => Freestyle
[field_14] => Hold 500 race pace
[field_18] => -5
)
[1361771245813] => Array
(
[field_11] => 1
[field_12] => 75
[field_13] => Butterfly
[field_14] =>
[field_18] =>
)
[acfcloneindex] => Array
(
[field_11] => 1
[field_12] => 125
[field_13] => Butterfly
[field_14] =>
[field_18] =>
)
)
)
[acfcloneindex] => Array
(
[field_7] =>
[field_8] => 0
[field_9] => 0
[field_10] => Array
(
[acfcloneindex] => Array
(
[field_11] => 1
[field_12] => 25
[field_13] => Butterfly
[field_14] =>
[field_18] =>
)
)
)
)
[field_21] => Array
(
[acfcloneindex] => Array
(
[field_7] =>
[field_8] => 0
[field_9] => 0
[field_10] => Array
(
[acfcloneindex] => Array
(
[field_11] =>
[field_12] => 25
[field_13] => Butterfly
[field_14] =>
[field_18] =>
)
)
)
)
)
我试图通过所有的钥匙，但无法弄清楚从哪里去。这是我正在使用的代码。
function array_keys_multi(array $array)
{
$keys = array();
foreach ($array as $key => $value) {
$keys[] = $key;
if (is_array($array[$key])) {
$keys = array_merge($keys, array_keys_multi($array[$key]));
}
}
return $keys;
}
答案 0 :(得分：0)
您可以使用array_walk_recursive
$array = array(/*some data*/);
$result = array();
$search_key = 'field_18';
array_walk_recursive($array, function($item, $key)use($search_key, &$result){
if ($search_key == $key)
$result[]=$item;
});
$search_values = array('-5', '-1');
$result2 = array();
array_walk_recursive($array, function($item, $key)use($search_values, &$result2){
if (is_array($item) && array_intersect($item, $search_values))
$result2[]=$item;
});
P.S。代码没有经过测试，只是一个想法。
答案 1 :(得分：0)
试试这个：
function array_key_exists_r($needle, $haystack)
{
//$result = array();
global $result;
if(is_array($haystack)){
foreach ($haystack as $key=>$v) {
if (is_array($v)) {
array_key_exists_r($needle, $v);
}
else{
if($key == $needle){
$result[] = $v;
}
}
}
}
return $result;
}
echo "<pre>";
print_r(array_key_exists_r("field_18", $your_array));
答案 2 :(得分：0)
由于您声称使用array_walk可能会非常危险，因此您的数组可能非常大。如果您使用的是PHP 5.5，则可以构建一个简单的foreach循环并生成相应的值。这样，消费函数可以根据需要获取尽可能多的条目。