搜寻及;使用PHP和CakePHP Set类替换数组键
我需要编写一个函数,以以下方式搜索和替换多维数组中的键: 输入阵列:搜寻及;使用PHP和CakePHP Set类替换数组键,php,class,cakephp,multidimensional-array,set,Php,Class,Cakephp,Multidimensional Array,Set,我需要编写一个函数,以以下方式搜索和替换多维数组中的键: 输入阵列: [0] => Array ( [Foo] => sometext [Foo2] => Array ( [lorem] => 1 [Avatar2] => Array ( [meta_key] => avata
[0] => Array
(
[Foo] => sometext
[Foo2] => Array
(
[lorem] => 1
[Avatar2] => Array
(
[meta_key] => avatar2
[meta_value] => Array
(
[small] => 65606449bb5b6d10c2dfce9ecb88fdbd-24-small.jpeg
[medium] => 65606449bb5b6d10c2dfce9ecb88fdbd-45-medium.jpeg
[large] => 65606449bb5b6d10c2dfce9ecb88fdbd-75-large.jpeg
[source] => 65606449bb5b6d10c2dfce9ecb88fdbd.jpg
)
)
)
[Avatar] => Array
(
[meta_key] => avatar
[meta_value] => Array
(
[small] => 65606449bb5b6d10c2dfce9ecb88fdbd-24-small.jpeg
[medium] => 65606449bb5b6d10c2dfce9ecb88fdbd-45-medium.jpeg
[large] => 65606449bb5b6d10c2dfce9ecb88fdbd-75-large.jpeg
[source] => 65606449bb5b6d10c2dfce9ecb88fdbd.jpg
)
)
)
[1] => Array
(
[Wallpaper] => Array
(
[meta_key] => wallpaper
[meta_value] => Array
(
[small] => 65606449bb5b6d10c2dfce9ecb88fdbd-24-small.jpeg
[medium] => 65606449bb5b6d10c2dfce9ecb88fdbd-45-medium.jpeg
[large] => 65606449bb5b6d10c2dfce9ecb88fdbd-75-large.jpeg
[source] => 65606449bb5b6d10c2dfce9ecb88fdbd.jpg
)
)
)
输出数组应如下所示:
[0] => Array
(
[Foo] => sometext
[Foo2] => Array
(
[lorem] => 1
[Avatar2] => Array (
[small] => 65606449bb5b6d10c2dfce9ecb88fdbd-24-small.jpeg
[medium] => 65606449bb5b6d10c2dfce9ecb88fdbd-45-medium.jpeg
[large] => 65606449bb5b6d10c2dfce9ecb88fdbd-75-large.jpeg
[source] => 65606449bb5b6d10c2dfce9ecb88fdbd.jpg
)
)
[Avatar] => Array
(
[small] => 65606449bb5b6d10c2dfce9ecb88fdbd-24-small.jpeg
[medium] => 65606449bb5b6d10c2dfce9ecb88fdbd-45-medium.jpeg
[large] => 65606449bb5b6d10c2dfce9ecb88fdbd-75-large.jpeg
[source] => 65606449bb5b6d10c2dfce9ecb88fdbd.jpg
)
)
[1] => Array
(
[Wallpaper] => Array
(
[small] => 65606449bb5b6d10c2dfce9ecb88fdbd-24-small.jpeg
[medium] => 65606449bb5b6d10c2dfce9ecb88fdbd-45-medium.jpeg
[large] => 65606449bb5b6d10c2dfce9ecb88fdbd-75-large.jpeg
[source] => 65606449bb5b6d10c2dfce9ecb88fdbd.jpg
)
)
如您所见,我需要重新格式化meta_key/meta_value部分。欢迎您提出任何建议(原始PHP或使用CakePHP集合类):)对此,您需要使用递归:
function replace_inner_meta_keys($arr) {
if (array_key_exists('meta_value', $arr)) {
// return meta value instead of original array
return $arr['meta_value'];
}
else {
foreach ($arr as $key => $value) {
if (is_array($value)) {
// travel through array recursivly
$arr[$key] = replace_inner_meta_keys($value);
}
}
return $arr;
}
}
对此,您需要使用递归:
function replace_inner_meta_keys($arr) {
if (array_key_exists('meta_value', $arr)) {
// return meta value instead of original array
return $arr['meta_value'];
}
else {
foreach ($arr as $key => $value) {
if (is_array($value)) {
// travel through array recursivly
$arr[$key] = replace_inner_meta_keys($value);
}
}
return $arr;
}
}