PHP Arrays, die Tiefe des Array Artikel Anfügen rekursiv auf ein Array mit dem Schlüssel von ‚Tiefe‘
https://stackoverflow.com/questions/435180
-
10-07-2019 - |
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Per Beispiel Array zuunterst, möchte ich in der Lage sein, um die Tiefe jedes eingebetteten Array angehängt werden innerhalb des Arrays. zum Beispiel:
array (
53 =>
array (
'title' => 'Home',
'path' => '',
'type' => '118',
'pid' => 52,
'hasChildren' => 0,
),
Hat eine Tiefe von einem gemäß der Probenreihe unten, so dass es nun wie folgt aussehen:
array (
53 =>
array (
'title' => 'Home',
'path' => '',
'type' => '118',
'pid' => 52,
'hasChildren' => 0,
'depth' => 1,
),
und so weiter ...
Alle der rekursiven Array-Funktion Versuche ich gemacht habe, sind ziemlich peinlich. Allerdings habe ich bei RecursiveArrayIterator sah, die die getDepth Funktion hat. Ich bin verwirrt, wie man es dem aktuellen Array anhängen ... jede mögliche Hilfe wird sehr geschätzt, danke.
array (
'title' => 'Website Navigation',
'path' => '',
'type' => '115',
'pid' => 0,
'hasChildren' => 1,
'children' =>
array (
53 =>
array (
'title' => 'Home',
'path' => '',
'type' => '118',
'pid' => 52,
'hasChildren' => 0,
),
54 =>
array (
'title' => 'Features',
'path' => 'features',
'type' => '374',
'pid' => 52,
'hasChildren' => 1,
'children' =>
array (
59 =>
array (
'title' => 'artistic',
'path' => 'features/artistic',
'type' => '374',
'pid' => 54,
'hasChildren' => 1,
'children' =>
array (
63 =>
array (
'title' => 'galleries',
'path' => 'features/artistic/galleries',
'type' => '374',
'pid' => 59,
'hasChildren' => 1,
'children' =>
array (
65 =>
array (
'title' => 'graphics',
'path' => 'features/artistic/galleries/graphics',
'type' => '118',
'pid' => 63,
'hasChildren' => 0,
),
67 =>
array (
'title' => 'mixed medium',
'path' => 'features/artistic/galleries/mixed-medium',
'type' => '118',
'pid' => 63,
'hasChildren' => 0,
),
64 =>
array (
'title' => 'overview',
'path' => 'features/artistic/galleries',
'type' => '118',
'pid' => 63,
'hasChildren' => 0,
),
68 =>
array (
'title' => 'photography',
'path' => 'features/artistic/galleries/photography',
'type' => '118',
'pid' => 63,
'hasChildren' => 0,
),
66 =>
array (
'title' => 'traditional',
'path' => 'features/artistic/galleries/traditional',
'type' => '118',
'pid' => 63,
'hasChildren' => 0,
),
),
),
62 =>
array (
'title' => 'overview',
'path' => 'features/artistic',
'type' => '118',
'pid' => 59,
'hasChildren' => 0,
),
69 =>
array (
'title' => 'tutorials',
'path' => 'features/artistic/tutorials',
'type' => '374',
'pid' => 59,
'hasChildren' => 1,
'children' =>
array (
71 =>
array (
'title' => 'by category',
'path' => 'features/artistic/tutorials/by-category/',
'type' => '118',
'pid' => 69,
'hasChildren' => 0,
),
72 =>
array (
'title' => 'by date',
'path' => 'features/artistic/tutorials/by-date/',
'type' => '118',
'pid' => 69,
'hasChildren' => 0,
),
70 =>
array (
'title' => 'overview',
'path' => 'features/artistic/tutorials',
'type' => '118',
'pid' => 69,
'hasChildren' => 0,
),
),
),
),
),
58 =>
array (
'title' => 'overview',
'path' => 'features',
'type' => '118',
'pid' => 54,
'hasChildren' => 0,
),
61 =>
array (
'title' => 'projects / labs',
'path' => 'features/projects-labs/',
'type' => '374',
'pid' => 54,
'hasChildren' => 0,
),
60 =>
array (
'title' => 'web development',
'path' => 'features/web-development',
'type' => '374',
'pid' => 54,
'hasChildren' => 1,
'children' =>
array (
74 =>
array (
'title' => 'articles',
'path' => 'features/web-development/articles/',
'type' => '374',
'pid' => 60,
'hasChildren' => 0,
),
73 =>
array (
'title' => 'overview',
'path' => 'features/web-development',
'type' => '118',
'pid' => 60,
'hasChildren' => 0,
),
75 =>
array (
'title' => 'tutorials',
'path' => 'features/web-development/tutorials',
'type' => '374',
'pid' => 60,
'hasChildren' => 0,
),
),
),
),
),
55 =>
array (
'title' => 'Activity',
'path' => 'activity',
'type' => '374',
'pid' => 52,
'hasChildren' => 0,
),
56 =>
array (
'title' => 'Blog',
'path' => 'blog',
'type' => '374',
'pid' => 52,
'hasChildren' => 0,
),
57 =>
array (
'title' => 'About',
'path' => 'about',
'type' => '374',
'pid' => 52,
'hasChildren' => 1,
'children' =>
array (
76 =>
array (
'title' => 'the author',
'path' => 'about/the-author',
'type' => '118',
'pid' => 57,
'hasChildren' => 0,
),
77 =>
array (
'title' => 'the website',
'path' => 'about/the-website',
'type' => '118',
'pid' => 57,
'hasChildren' => 0,
),
),
),
),
),
);
print_r($example);
?>
Lösung
I assume there is another array( at the top not included in your example code. Something like this?
function array_set_depth($array, $depth = -1)
{
$subdepth = $depth + 1;
if ($depth < 0) {
foreach ($array as $key => $subarray) {
$temp[$key] = array_set_depth(($subarray), $subdepth);
}
}
if ($array['hasChildren'] && isset($array['children'])) {
foreach ($array['children'] as $key => $subarray) {
$temp[$key] = array_set_depth($subarray, $subdepth);
}
$array['children'] = $temp;
}
$array['depth'] = $depth;
return $array;
}
Example usage, I set your array to the value $a:
$b = array_set_depth($a);
print_r($b);
Edit:
To set depth before the children for nice printing you can do this:
function array_set_depth($array, $depth = -1)
{
$subdepth = $depth + 1;
if ($depth < 0) {
foreach ($array as $key => $subarray) {
$temp[$key] = array_set_depth(($subarray), $subdepth);
}
return $temp;
}
$array['depth'] = $depth;
if ($array['hasChildren'] && isset($array['children'])) {
foreach ($array['children'] as $key => $subarray) {
$temp[$key] = array_set_depth($subarray, $subdepth);
}
unset($array['children']);
$array['children'] = $temp;
}
return $array;
}
Andere Tipps
A recursive function like this should do it?
function setDepth(&$a, $depth)
{
$a['depth']=$depth;
foreach($a as $key=>$value)
{
if (is_array($value))
setDepth($a[$key], $depth+1);
}
}
The thing to note is that the array is passed by reference, so that we can modify it. Note that we also use this reference in the recursive call to setDepth. Although I used foreach for convenience, the $value variable is a copy, and passing that to setDepth would only make short lived changes within the scope of the foreach loop.
Modified Pauls code to work with this example.
function setDepth(&$a, $depth = -1)
{
if (($depth > -1) && !($depth % 2))
$a['depth']= $depth / 2;
foreach($a as $key=>$value)
{
if (is_array($value))
setDepth($a[$key], $depth+1);
}
}
setDepth($a);
print_r($a);
sth like this should do the trick:
function setdepth($arr, $depth = 0)
{
foreach ($arr as $key => $val)
{
$arr[$key]['depth'] = $depth;
if ($arr[$key]['hasChildren'])
{
setdepth(&$arr[$key]['children'], $depth+1);
}
}
}
i would be easier if your array started with index not with values, so example usage could be like this:
$arr[0] = $website;
setdepth(&$arr, 0);
where website is the array from your example
This might be helpful:
function extend( $arr, $myArr=array() ) {
foreach( $arr as $key => $value ) {
if( is_array( $key ) ) {
extend( $arr[ $key ] );
} else {
$myArr[ $key ] = $arr[ $key ];
}
}
return $myArr;
}
Function called "extend" because it's not only copies array into new one, it can also extends existing arrays.
To extend an array you should put it as the second parameter, otherwise put an empty array. The function lopps through array properties and checks is it an array or not and if it is function envoked again otherwise it copies values into another array and returns it.
