[英]Intersection of one multidimensional arrays in PHP
我有以下数组:
$output = array(
1507073550 => array(
0 => array(
"userid" => "1507073550"
"username" => "ma_alikhani"
"type" => "comment"
"profile_image" => "https://instagram.fgbb2-1.fna.fbcdn.net/v/t51.2885-19/s150x150/75538099_557824008392923_8054831368279949312_n.jpg?_nc_ht=instagram.fgbb2-1.fna.fbcdn.net&_nc_ohc"
)
1 => array(
"userid" => "11863258101"
"username" => "rasouli680"
"type" => "comment"
"profile_image" => "https://instagram.fgbb2-1.fna.fbcdn.net/v/t51.2885-19/s150x150/70326284_949495768737898_5241573836020776960_n.jpg?_nc_ht=instagram.fgbb2-1.fna.fbcdn.net&_nc_ohc"
)
2 => array(
"userid" => "16528062"
"username" => "alireza"
"type" => "comment"
"profile_image" => "https://instagram.fgbb2-1.fna.fbcdn.net/v/t51.2885-19/s150x150/70597112_740563976416368_5253996423334068224_n.jpg?_nc_ht=instagram.fgbb2-1.fna.fbcdn.net&_nc_ohc"
)
)
16528062 => array(
0 => array(
"userid" => "16528062"
"username" => "alireza"
"type" => "comment"
"profile_image" => "https://instagram.fgbb2-1.fna.fbcdn.net/v/t51.2885-19/s150x150/70597112_740563976416368_5253996423334068224_n.jpg?_nc_ht=instagram.fgbb2-1.fna.fbcdn.net&_nc_ohc"
)
1 => array(
"userid" => "1507073550"
"username" => "ma_alikhani"
"type" => "comment"
"profile_image" => "https://instagram.fgbb2-1.fna.fbcdn.net/v/t51.2885-19/s150x150/75538099_557824008392923_8054831368279949312_n.jpg?_nc_ht=instagram.fgbb2-1.fna.fbcdn.net&_nc_ohc"
)
)
)
我想交叉这个数组的键。 获取第一个键“1507073550”和第二个键“16528062”并与它们的所有数据相交。 它并不总是有 2 个键,它可能有 +2 个键,我写了这段代码,但我得到了数组到字符串的转换错误。
$keys = array_keys($output);
foreach ($keys as $index => $values)
{
$current_value = $output[$values]; // or $current_value = $a[$keys[$index]];
$next_key = next($keys);
$next_value = $output[$next_key] ?? null; // for php version >= 7.0
$a[] = array_intersect_assoc($current_value,$next_value);
}
我期待这个结果:
array(
0 => array(
"userid" => "1507073550"
"username" => "ma_alikhani"
"type" => "comment"
"profile_image" => "https://instagram.fgbb2-1.fna.fbcdn.net/v/t51.2885-19/s150x150/75538099_557824008392923_8054831368279949312_n.jpg?_nc_ht=instagram.fgbb2-1.fna.fbcdn.net&_nc_ohc"
)
1 => array(
"userid" => "16528062"
"username" => "alireza"
"type" => "comment"
"profile_image" => "https://instagram.fgbb2-1.fna.fbcdn.net/v/t51.2885-19/s150x150/70597112_740563976416368_5253996423334068224_n.jpg?_nc_ht=instagram.fgbb2-1.fna.fbcdn.net&_nc_ohc"
)
)
我真的不知道该怎么做。 我将不胜感激您的帮助。
function intersect(array $src, array $keys)
{
// Require that both $src and $keys have data
if (!$src || !$keys) {
return [];
}
// Hold the users for each key in $keys
$sets = [];
// Store the users from $src to $sets as dictated by $keys
foreach ($keys as $key) {
if (isset($src[$key])) {
// Re-key the list of users with their user id
$userIds = array_column($src[$key], 'userid');
$sets[$key] = array_combine($userIds, $src[$key]);
}
}
if (count($sets) !== count($keys)) {
// Up to you if you want to require that all keys must be valid/present in the $src
}
// Get the users present in all of the set dictated by $keys
$users = call_user_func_array('array_intersect_key', $sets);
return $users;
};
要使用:
$output = [ ... ]; // $ouput in the question
$keys = [1507073550, 16528062]; // see question
$users = intersect($output, $keys);
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