Php 通过将一维数组的每个值与“匹配”来创建新的一维数组；名称“；嵌套多维数组的键
这是称为Php 通过将一维数组的每个值与“匹配”来创建新的一维数组；名称“；嵌套多维数组的键,php,arrays,multidimensional-array,Php,Arrays,Multidimensional Array,这是称为multi的多维嵌套数组：- Array ( [0] => Array ( [id] => 4d4b7104d754a06370d81259 [name] => Arts & Entertainment [pluralName] => Arts & Entertainment [shortName] => Arts &
multiArray
(
[0] => Array
(
[id] => 4d4b7104d754a06370d81259
[name] => Arts & Entertainment
[pluralName] => Arts & Entertainment
[shortName] => Arts & Entertainment
[icon] => Array
(
[prefix] => https://ss3.4sqi.net/img/categories_v2/arts_entertainment/default_
[suffix] => .png
)
[categories] => Array
(
[0] => Array
(
[id] => 56aa371be4b08b9a8d5734db
[name] => Amphitheater
[pluralName] => Amphitheaters
[shortName] => Amphitheater
[icon] => Array
(
[prefix] => https://ss3.4sqi.net/img/categories_v2/arts_entertainment/default_
[suffix] => .png
)
[categories] => Array
(
[0] => Array
(
[id] => 4bf58dd8d48988d1f8931735
[name] => Bed & Breakfast
[pluralName] => Bed & Breakfasts
[shortName] => B & B
[icon] => Array
(
[prefix] => https://ss3.4sqi.net/img/categories_v2/travel/bedandbreakfast_
[suffix] => .png
)
[categories] => Array
(
)
)
[1] => Array
(
[id] => 4f4530a74b9074f6e4fb0100
[name] => Boarding House
[pluralName] => Boarding Houses
[shortName] => Boarding
[icon] => Array
(
[prefix] => https://ss3.4sqi.net/img/categories_v2/travel/hotel_
[suffix] => .png
)
[categories] => Array
(
)
)
)
)
[1] => Array
(
[id] => 4fceea171983d5d06c3e9823
[name] => Aquarium
[pluralName] => Aquariums
[shortName] => Aquarium
[icon] => Array
(
[prefix] => https://ss3.4sqi.net/img/categories_v2/arts_entertainment/aquarium_
[suffix] => .png
)
[categories] => Array
(
)
)
)
[1] => Array
(
[id] => 4d4b7105d754a06372d81259
[name] => College & University
[pluralName] => Colleges & Universities
[shortName] => College & Education
[icon] => Array
(
[prefix] => https://ss3.4sqi.net/img/categories_v2/education/default_
[suffix] => .png
)
[categories] => Array
(
[0] => Array
(
[id] => 4bf58dd8d48988d198941735
[name] => College Academic Building
[pluralName] => College Academic Buildings
[shortName] => Academic Building
[icon] => Array
(
[prefix] => https://ss3.4sqi.net/img/categories_v2/education/academicbuilding_
[suffix] => .png
)
[categories] => Array
(
[0] => Array
(
[id] => 4bf58dd8d48988d199941735
[name] => College Arts Building
[pluralName] => College Arts Buildings
[shortName] => Arts
[icon] => Array
(
[prefix] => https://ss3.4sqi.net/img/categories_v2/arts_entertainment/default_
[suffix] => .png
)
[categories] => Array
(
)
)
)
)
[1] => Array
(
[id] => 4bf58dd8d48988d197941735
[name] => College Administrative Building
[pluralName] => College Administrative Buildings
[shortName] => Administrative Building
[icon] => Array
(
[prefix] => https://ss3.4sqi.net/img/categories_v2/education/administrativebuilding_
[suffix] => .png
)
[categories] => Array
(
)
)
)
)
)
singlearray(
[0] => 'Aquarium',
[1] => 'Amphitheater'
)
singlemultisinglepublic static function array_flatten($fs_array, $cat_array) {
if (!is_array($fs_array)) {
return FALSE;
}
$result = array();
foreach ($fs_array as $key => $value)
{
if(in_array($value['name'], $cat_array))
$result[] = $value['id'];
}
return $result;
}
我根据您的示例构建了一个解决方案。我没有测试它，但它背后的想法是： 检查是否有一个“categories”键，它是一个数组，如果是，则将该子数组再次传递到flant_数组中。递归调用的返回值随后将合并到$result数组中
public static function array_flatten($fs_array, $cat_array) {
if (!is_array($fs_array)) {
return FALSE;
}
$result = array();
foreach ($fs_array as $key => $value)
{
if(in_array($value['name'], $cat_array)) {
$result[] = $value['id'];
}
// ----- here starts what I added -----------
if (is_array($value['categories'])) {
$result = array_merge($result, self::array_flatten($value['categories'], $cat_array));
}
// ----- here ends what I added -----------
}
return $result;
}
要进行递归调用，函数应该关注对象的“categories”元素，这是数据中的递归部分。如果您的函数专注于此，那么当名称与当前object的“categories”值不匹配时，它可以调用自己。谢谢，但我认为有一点错误。第二个
if语句名称