So I got this:
$tree = [
array(
'name' => 'One1',
),
array(
'name' => 'One2',
),
array(
'name' => 'One3',
),
array(
'name' => 'One4',
'children' => [
array(
'name' => 'Two1',
),
array(
'name' => 'Two2',
'children' => [
array(
'name' => 'Three1',
),
],
),
array(
'name' => 'Two3',
),
]
),
array(
'name' => 'One5',
),
];
And I'm looking for a way to have this output (recursively):
One1
One2
One3
One4 › Two1
One4 › Two2 › Three1
One4 › Two3
One5
As far as I go I have this function
function getValuesPaths(array $tree, $glue = ' > ') {
$branches = array();
foreach ($tree as &$item) {
$piece = $item['name'];
if (array_key_exists('children', $item)) {
if (count($item['children'])>1) {
$leafs = self::getValuesPaths($item['children']);
foreach ($leafs as $item) {
$branches[] = $piece . $glue . $item;
}
}
} else {
$branches[] = $piece;
}
}
return $branches;
}
This output the following paths:
One1
One2
One3
One4 > Two1
One4 > Two3
One5
It wasn't supposed to find the One4 > Two2 > Three1?
May help you…
function getKeyPaths(array $tree, $glue = '.')
{
$paths = array();
foreach ($tree as $key => &$mixed) {
if (is_array($mixed)) {
$results = getKeyPaths($mixed, $glue);
foreach ($results as $k => &$v) {
$paths[$key . $glue . $k] = $v;
}
unset($results);
} else {
$paths[$key] = $mixed;
}
}
return $paths;
}
Related
I'm trying to retrieve the values on multidimensional arrays using a search like function.
$rows = array(
array(
'Name'=>'City of God',
'Year'=>'2002',
'Rating'=>'10'
),
array(
'Name'=>'The Great Escape',
'Year'=>'1963',
'Rating'=>'9'
),
array(
'Name'=>'Dune',
'Year'=>'1984',
'Rating'=>'6'
),
array(
'Name'=>'Superbabies: Baby Geniuses 2',
'Year'=>'2004',
'Rating'=>'1'
)
);
So for example, if you want to search the array with a value of Name with 'City of God' and Year with '1963' the expected output should be like this
$rows = array(
array(
'Name'=>'City of God',
'Year'=>'2002',
'Rating'=>'10'
),
array(
'Name'=>'The Great Escape',
'Year'=>'1963',
'Rating'=>'9'
),
);
Currently, the function I am using is this
function multiSearch(array $array, array $pairs)
{
$found = array();
foreach ($array as $aKey => $aVal) {
$coincidences = 0;
foreach ($pairs as $pKey => $pVal) {
if (array_key_exists($pKey, $aVal) && $aVal[$pKey] == $pVal) {
$coincidences++;
}
}
if ($coincidences == count($pairs)) {
$found[$aKey] = $aVal;
}
}
return $found;
}
However, using this function only capable of retrieving data of the same array key. So for example if I search the value of Name of 'City of God'
$x = multiSearch($rows, array('Name' => 'City of God')
This will display the correct output like this
$rows = array(
array(
'Name'=>'City of God',
'Year'=>'2002',
'Rating'=>'10'
),
);
Unfortunately, if you try to use, 'Name' => 'City of God' and 'Year' => '1963'
It will not display any output. I'm stuck on figuring out on displaying the correct output, any ideas would be appreciated
Try this :
$datas = array(
array(
'Name'=>'City of God',
'Year'=>'2002',
'Rating'=>'10'
),
array(
'Name'=>'The Great Escape',
'Year'=>'1963',
'Rating'=>'9'
),
array(
'Name'=>'Dune',
'Year'=>'1984',
'Rating'=>'6'
),
array(
'Name'=>'Superbabies: Baby Geniuses 2',
'Year'=>'2004',
'Rating'=>'1'
)
);
$search = array(
'Name' => 'Dune',
'Year' => '2004'
);
$output = array();
foreach ($datas as $key1 => $row) {
foreach ($row as $key2 => $value) {
if($search[$key2] == $value) {
// if(stristr($value, $search[$key2]) !== FALSE) { // if you want to search
$output[] = $datas[$key1];
break;
}
}
}
echo "<pre>"; print_r($output); exit;
Output:
Array
(
[0] => Array
(
[Name] => Dune
[Year] => 1984
[Rating] => 6
)
[1] => Array
(
[Name] => Superbabies: Baby Geniuses 2
[Year] => 2004
[Rating] => 1
)
)
If you need OR, as you mentioned in your question, you then need to see if at least one coincidence happened:
if ($coincidences > 0) {
$found[$aKey] = $aVal;
}
This way, both entries:
$rows = array(
array(
'Name'=>'City of God',
'Year'=>'2002',
'Rating'=>'10'
),
array(
'Name'=>'The Great Escape',
'Year'=>'1963',
'Rating'=>'9'
),
);
will be matched.
Modify the search function to this - works for both the cases mentioned:
function multiSearch($rows, $value) {
$newArr = array();
foreach ($rows as $row) {
foreach ($value as $key => $val) {
if (isset($row[$key]) && $row[$key] == $val) {
$newArr[] = $row;
}
}
}
return $newArr;
}
Calling with one or two values produces the required output -
$x = multiSearch($rows, array('Name' => 'City of God'));
$x = multiSearch($rows, array('Name' => 'City of God', 'Year' => '1963'));
//returns $rows containing this pair
Take a look on my suggestion
function search ($storage, $criteria)
{
return array_filter(
$storage,
function ($row) use ($criteria) {
foreach ($criteria as $key => $value) {
if ($row[$key] === $value) {
return true;
}
}
}
);
}
$result = search($datas, $search);
/**
* $result = [
* 2 => [
* 'Name' => 'Dune'
* 'Year' => '1984'
* 'Rating' => '6'
* ],
* 3 => [
* 'Name' => 'Superbabies: Baby Geniuses 2'
* 'Year' => '2004'
* 'Rating' => '1'
* ]
* ];
*/
what about a recursive call?
function recursiveInArray ($needle, $array) {
$status = false;
foreach($array as $value) {
if(is_array($value)) {
recursiveInArray($needle, $value);
} else {
$status = ($needle == $value);
}
}
return $status;
}
i know its abstract, but should help you working with multi dimensional searching
I'm trying to figure out the best way to DRY a foreach loop. I need the loop to add the node into the tree array only if it has any children.
$categories = Category::all();
$nodes = $categories->toTree();
$tree[] = [
'id' => null,
'name' => '--No Parent--'
];
foreach ( $nodes as $node ) {
$tree[] = [
'id' => $node->id,
'name' => $node->name
];
foreach ( $node->children as $node2 ) {
$tree[] = [
'id' => $node2->id,
'name' => $node->name.' > '. $node2->name
];
}
}
Looks like a simple if that checks for that condition would work for you.
$categories = Category::all();
$nodes = $categories->toTree();
$tree[] = [
'id' => null,
'name' => '--No Parent--'
];
foreach ( $nodes as $node ) {
if ( is_array($node->children) && count($node->children) > 0 ) {
$tree[] = [
'id' => $node->id,
'name' => $node->name
];
foreach ( $node->children as $node2 ) {
$tree[] = [
'id' => $node2->id,
'name' => $node->name.' > '. $node2->name
];
}
}
}
I'm trying to make a menu from an array in PHP.
I would like to make it more readable, so I used an array.
My array is the following:
$menu = array(
'calendar' => array(
'text' => 'Calendar',
'rights' => 'user'
),
'customers' => array(
'text' => 'Customers',
'rights' => 'user',
'sub' => array(
'create-new' => array(
'text' => 'Create new customer',
'rights' => 'user'
),
'show-customers' => array(
'text' => 'Show all customers',
'rights' => 'user'
)
)
)
);
And the PHP to parse the array:
buildMenu($menu);
function buildMenu($menu_array, $is_sub=FALSE) {
$attr = (!$is_sub) ? ' id="menu"' : ' class="submenu"';
$menu = "<ul".$attr.">";
foreach($menu_array as $id => $properties) {
foreach($properties as $key => $val) {
if(is_array($val)) {
$sub = buildMenu($val, TRUE);
}
else {
$sub = NULL;
$$key = $val;
}
}
if(!isset($url)) {
$url = $id;
}
$menu .= "<li>".$text."".$sub."</li>";
unset($url, $text, $sub);
}
return $menu . "</ul>";
}
Do I miss something ?
It don't echo me anything.
Thanks for your help.
Just return will not give output you need to either use below code, inside function.
echo $menu . "</ul>";
instead of
return $menu . "</ul>";
or use below code if you return your html output.
echo $output = buildMenu($menu);
instead of
buildMenu($menu);
how can i print the whole multidimensional array by using foreach?
<?php
$shop=array // main array
(
"laptop"=>array
(
"conpaq",
"IBM",
"DELL",
"Lenovo"
),
"printer"=>array
(
"canon",
"Hp"
),
"Tabs"=>array
(
"Hp",
"Dell",
"deny"
)
);
This one is a simple list using recursion, it also have tabs to make it more clear when there's a new array-group.
Please try it and adjust for your code.
$shop = array(
'computers' => array(
'dell' => array(
'i7' => array(
'model1' => 'Model 1',
'model2' => 'Model 2',
),
'i5' => 'Model 1'
),
'hp' => array(
'model1' => 'Model 1'
)
),
'printers' => array(
'Epson' => 'Model 1'
)
);
function printProducts($products, $tabsCount = 0){
$result = ''; $tabs = '';
for($i = 0; $i < $tabsCount; $i++){ $tabs .= ' '; }
foreach($products AS $index=>$product){
if(is_array($product)){
$result .= $tabs.$index.'<br>';
$result .= printProducts($product, $tabsCount+1);
}else{
$result .= $tabs.$product.'<br>';
}
}
return $result;
}
echo printProducts($shop);
Ask if there is something you don't understand.
for 2 levels and without recursion. Recusion would be better but this will work.
foreach($shop as $value) {
if (is_array($value)) {
foreach($shop as $value) {
echo "$value<br />";
}
} else {
echo "$value<br />";
}
}
?>
Example Array:
$array = array([key1] =>
array([key11] =>
array([key111] => 'value111',
[key112] => 'value112',
[key113] => 'value113',
[key114] => array(A,B,C,D),
),
),
);
I need an output as below array:
array([key1/key11/key111] => 'value111',
[key1/key11/key112] => 'value112',
[key1/key11/key113] => 'value113',
[key1/key11/key114] => 'A,B,C,D' );
and i have tried using this function,
function listArrayRecursive($someArray, &$outputArray, $separator = "/") {
$iterator = new RecursiveIteratorIterator(new RecursiveArrayIterator($someArray), RecursiveIteratorIterator::SELF_FIRST);
foreach ($iterator as $k => $v) {
if (!$iterator->hasChildren()) {
for ($p = array(), $i = 0, $z = $iterator->getDepth(); $i <= $z; $i++) {
$p[] = $iterator->getSubIterator($i)->key();
}
$path = implode($separator, $p);
$outputArray[] = $path;
}
}
}
$outputArray = array();
listArrayRecursive($array, $outputArray);
I cant able to find how to achieve this by using the above function for "key1/key11/key114" getting value as i expected. Please help me on this.
Input:
$array = array(
'key1' => array(
'key11' => array(
'key111' => 'value111',
'key112' => 'value112',
'key113' => 'value113',
'key114' => array('A','B','C','D'),
),
'key12' => array(
'key121' => 'value121',
'key122' => 'value122',
'key123' => 'value123',
'key124' => array('A','B','C','D'),
),
),
'key2' => array(
'key21' => array(
'key211' => 'value111',
'key212' => 'value112',
'key213' => 'value113',
'key214' => array('A','B','C','D'),
),
),
);
Script:
function remap_keys($input, $max_depth, $separator = '/', /* reserved */ $keychain = array(), /* reserved */ &$output = array())
{
foreach ($input as $key => $element)
{
$element_keychain = array_merge($keychain, (array)$key);
if (($max_depth > 1) && is_array($element))
remap_keys($element, $max_depth -1, $separator, $element_keychain, $output);
else
$output[implode($separator, $element_keychain)] = implode(',', (array)$element);
}
return $output;
}
$array = remap_keys($array, 3);
print_r($array);
Output:
Array
(
[key1/key11/key111] => value111
[key1/key11/key112] => value112
[key1/key11/key113] => value113
[key1/key11/key114] => A,B,C,D
[key1/key12/key121] => value121
[key1/key12/key122] => value122
[key1/key12/key123] => value123
[key1/key12/key124] => A,B,C,D
[key2/key21/key211] => value111
[key2/key21/key212] => value112
[key2/key21/key213] => value113
[key2/key21/key214] => A,B,C,D
)
http://ideone.com/pqH45h
$array = array('key1' =>
array('key11' =>
array('key111' => 'value111',
'key112' => 'value112',
'key113' => 'value113',
'key114' => array(A,B,C,D),
),
),
);
function implode_arr_keys($array, $output_arr = array(), $cur_key = FALSE) {
foreach($array as $key => $value) {
if(is_array($value)) {
return implode_arr_keys($value, $output_arr, ($cur_key == FALSE ? $key : $cur_key.'/'.$key));
} else {
if(!is_numeric($key))
$output_arr[$cur_key.'/'.$key] = $value;
else
$output_arr[$cur_key] = $array;
}
}
return $output_arr;
}
print_r($array);
print_r(implode_arr_keys($array));