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I would like to replace keys in arrays, because I will move them on two indexes up.
Problem that I am facing is that those are containing same names which will not be ok, if i want to move them up.
This is how array looks like.
$list = array(
'ind' => array(
'messagetype' => 'Alert',
'visibility' => 'Public',
'info' => array(
0 => array(
'urgency' => 'Urgent',
'params' => array(
0 => array(
'Name' => 'display',
'value' => '3; top',
),
1 => array(
'Name' => 'level',
'value' => '1; blue',
),
),
'area' => array(
'ard' => 'Bob',
'code' => array(
0 => array(
'Name' => 'Badge',
'value' => 'GSSD154',
),
),
),
),
1 => array(
'messagetype' => 'Information',
'visibility' => 'Private',
'info' => array(
0 => array(
'urgency' => 'Minor',
'params' => array(
0 => array(
'Name' => 'display',
'value' => '1; left',
),
1 => array(
'Name' => 'level',
'value' => '1; red',
),
),
'area' => array(
'ard' => 'Bob',
'code' => array(
0 => array(
'Name' => 'Badge',
'value' => 'GBECS23',
),
),
),
),
),
),
),
),
);
and this is how I would like the output to be with changing keys in Name0, Name1, which are inside params.
$list = array(
'ind' => array(
'messagetype' => 'Alert',
'visibility' => 'Public',
'info' => array(
0 => array(
'urgency' => 'Urgent',
'params' => array(
0 => array(
'Name0' => 'display',
'value0' => '3; top',
),
1 => array(
'Name1' => 'level',
'value1' => '1; blue',
),
),
'area' => array(
'ard' => 'Bob',
'code' => array(
0 => array(
'Name' => 'Badge',
'value' => 'GSSD154',
),
),
),
),
1 => array(
'messagetype' => 'Information',
'visibility' => 'Private',
'info' => array(
0 => array(
'urgency' => 'Minor',
'params' => array(
0 => array(
'Name0' => 'display',
'value0' => '1; left',
),
1 => array(
'Name1' => 'level',
'value1' => '1; red',
),
),
'area' => array(
'ard' => 'Bob',
'code' => array(
0 => array(
'Name' => 'Badge',
'value' => 'GBECS23',
),
),
),
),
),
),
),
),
);
I have tried with a lots of examples over this website, but could not find one to achieve this.
Code that I used from
How to replace key in multidimensional array and maintain order
function replaceKey($subject, $newKey, $oldKey) {
// if the value is not an array, then you have reached the deepest
// point of the branch, so return the value
if (!is_array($subject)) {
return $subject;
}
$newArray = array(); // empty array to hold copy of subject
foreach ($subject as $key => $value) {
// replace the key with the new key only if it is the old key
$key = ($key === $oldKey) ? $newKey : $key;
// add the value with the recursive call
$newArray[$key] = replaceKey($value, $newKey, $oldKey);
}
return $newArray;
}
$s = replaceKey($list, 'Name0', 'Name');
print "<PRE>";
print_r($s);
at the moment I get this output:
[0] => Array
(
[Name0] => display
[value] => 1; left
)
[1] => Array
(
[Name0] => level
[value] => 1; red
)
any help would be appreciated. regards
A very strange question, but why not?
The following function returns nothing (a procedure) and changes the array in-place using references but feel free to rewrite it as a "real" function (without references and with a return statement somewhere).
The idea consists to search for arrays, with numeric keys and at least 2 items, in which each item has the Name and value keys. In other words, this approach doesn't care about paths where the targets are supposed to be:
function replaceKeys(&$arr) {
foreach ($arr as &$v) {
if ( !is_array($v) )
continue;
$keys = array_keys($v);
if ( count($keys) < 2 ||
$keys !== array_flip($keys) ||
array_keys(array_merge(...$v)) !== ['Name', 'value'] ) {
replaceKeys($v);
continue;
}
foreach ($v as $k => &$item) {
$item = array_combine(["Name$k", "value$k"], $item);
}
}
}
replaceKeys($list);
print_r($list);
demo
Hello good morning wherever you are :D, i have a lil problem, i have this code of arrays
$arrayToView is the info of every single user that i want.
$tagsArray are only tags that use every user but i need to merge all the info something like the last array...
$arrayToView = array(
'IVOFACUNDO' = array(
'mails' => 3,
'contacts' => 34,
'blocked' => 23
),
'ESRAYCU' = array(
'mails' => 23,
'contacts' => 124,
'blocked' => 44
)
)
And i have another one like this
$tagsArray= array(
'IVOFACUNDO' = array(
'14' => array(
'id' => 14,
'name' => 'php',
'value' => 1
),
'15' => array(
'id' => 15,
'name' => 'javascript',
'value' => 1
)
),
'ESRAYCU' = array(
'1' => array(
'id' => 1,
'name' => 'python',
'value' => 1
),
'15'=> array(
'id' => 15,
'name' => 'javascript',
'value' => 1
)
)
)
so the question is how i can merge both arrays obviously respectively with the same admin something like this
$arrayToView = array(
'IVOFACUNDO' = array(
'mails' => 3,
'contacts' => 34,
'blocked' => 23,
'tags' => array(
'14' => array(
'id' => 14,
'name' => 'php',
'value' => 1
),
'15' => array(
'id' => 15,
'name' => 'javascript',
'value' => 1
)
)
),
'ESRAYCU' = array(
'mails' => 23,
'contacts' => 124,
'blocked' => 44,
'tags' => array(
'1' => array(
'id' => 1,
'name' => 'python',
'value' => 1
),
'15'=> array(
'id' => 15,
'name' => 'javascript',
'value' => 1
)
)
)
)
The key 'tags' need to be created in the merge of every iteration to add and get one array with all the values, how i can do this?
You can try this snippet.
foreach($arrayToView as $key => $arr){
if(array_key_exists($key, $tagsArray)){
$arrayToView[$key]['tags'] = $tagsArray[$key];
}
}
echo '<pre>';print_r($arrayToView);echo '</pre>';
Use php inbuilt function
$result_Arr = array_merge_recursive($arrayToView,$tagsArray);
<?php
$arrayToView = array(
'IVOFACUNDO' => array(
'mails' => 3,
'contacts' => 34,
'blocked' => 23
),
'ESRAYCU' => array(
'mails' => 23,
'contacts' => 124,
'blocked' => 44
)
);
$tagsArray= array(
'IVOFACUNDO' => array(
'14' => array(
'id' => 14,
'name' => 'php',
'value' => 1
),
'15' => array(
'id' => 15,
'name' => 'javascript',
'value' => 1
)
),
'ESRAYCU' => array(
'1' => array(
'id' => 1,
'name' => 'python',
'value' => 1
),
'15'=> array(
'id' => 15,
'name' => 'javascript',
'value' => 1
)
)
);
foreach($arrayToView as $key => $value){
if(isset($tagsArray[$key])){
$arrayToView[$key]['tags'] = array();
foreach($tagsArray[$key] as $key2 => $value2){
$arrayToView[$key]['tags'][$key2] = $tagsArray[$key][$key2];
}
}
}
echo'<pre>';
print_r($arrayToView);
echo'</pre>';
?>
I have a stored unlimited nested levels array with unwanted extra data.
$arr = array(
array(
'name' => 'item1',
'level' => 0,
'extra_key' => 'some_data',
'children' => array(
'name' => 'sub-item1',
'level' => 1,
'extra_key' => 'some_data',
'children' => array(
'name' => 'sub-sub-item1',
'level' => 2,
'extra_key' => 'some_data',
'children' => array()
),
array(
'name' => 'sub-sub2-item1',
'level' => 2,
'extra_key' => 'some_data',
'children' => array()
),
)
),
array(
'name' => 'item2',
'level' => 0,
'extra_key' => 'some_data',
'children' => array(
'name' => 'sub-item2',
'level' => 2,
'extra_key' => 'some_data',
'children' => array(
'name' => 'sub-sub-item2',
'level' => 2,
'extra_key' => 'some_data',
'children' => array()
),
array(
'name' => 'sub-sub2-item2',
'level' => 2,
'extra_key' => 'some_data',
'children' => array()
),
)
),
array(
'name' => 'item3',
'level' => 0,
'extra_key' => 'some_data',
'children' => array(
'name' => 'sub-item3',
'level' => 1,
'extra_key' => 'some_data',
'children' => array(
'name' => 'sub-sub-item3',
'level' => 2,
'extra_key' => 'some_data',
'children' => array()
),
array(
'name' => 'sub-sub2-item3',
'level' => 2,
'extra_key' => 'some_data',
'children' => array()
),
)
),
);
Expected output array:
$arr = array(
array(
'name' => 'item1',
'nodes' => array(
'name' => 'sub-item1',
'nodes' => array(
'name' => 'sub-sub-item1',
'nodes' => array()
),
array(
'name' => 'sub-sub2-item1',
'nodes' => array()
),
)
),
array(
'name' => 'item2',
'nodes' => array(
'name' => 'sub-item2',
'nodes' => array(
'name' => 'sub-sub-item2',
'nodes' => array()
),
array(
'name' => 'sub-sub2-item2',
'nodes' => array()
),
)
),
array(
'name' => 'item3',
'nodes' => array(
'name' => 'sub-item3',
'nodes' => array(
'name' => 'sub-sub-item3',
'nodes' => array()
),
array(
'name' => 'sub-sub2-item3',
'nodes' => array()
),
)
)
);
I want to remove unwanted keys like level , extra_key from all levels and i want also to change the name of the key children to nodes then reproduce the same array with the same structure with the new format.
How can i achieve that?
I tried to do it by recursive function but i failed to reproduce the same structrue
Your structure doesn't make sense, probably because of that you was unable to write recursive function. If it is possible to change structure, I would suggest this one (with reformat function implementation):
<?php
$actual = array(
array(
'name' => 'item1',
'level' => 0,
'extra_key' => 'some_data',
'children' => array(
array(
'name' => 'sub-item1',
'level' => 1,
'extra_key' => 'some_data',
'children' => array(
array(
'name' => 'sub-sub-item1',
'level' => 2,
'extra_key' => 'some_data',
'children' => array()
),
array(
'name' => 'sub-sub2-item1',
'level' => 2,
'extra_key' => 'some_data',
'children' => array()
),
)
),
)
),
);
$expected = array(
array(
'name' => 'item1',
'nodes' => array(
array(
'name' => 'sub-item1',
'nodes' => array(
array(
'name' => 'sub-sub-item1',
'nodes' => array()
),
array(
'name' => 'sub-sub2-item1',
'nodes' => array()
),
),
),
)
),
);
function change_array($original)
{
return array_map('change_node', $original);
}
function change_node($node)
{
return [
'name' => $node['name'],
'nodes' => array_map('change_node', $node['children']),
];
}
var_dump($expected === change_array($actual));
This function will do what you want recursively.
You can add extra excluded and/or renamed indices if required;
function parseArray($array): array
{
// The resulting array
$result = [];
// Indices you want renamed [`from` => `to`]
$renameIndices = ['children' => 'nodes'];
// Indices you want excluded [`1`, `2`]
$excludedIndices = ['level', 'extra_key'];
foreach ($array as $idx => $content)
{
// If excluded, continue (skip) node.
if (in_array($idx, $excludedIndices, true))
{
continue;
}
// Setting the resulting (new) index.
$resultIdx = $idx;
// Check if this index should be renamed
if (array_key_exists($idx, $renameIndices))
{
// If index should be renamed, apply new name
$resultIdx = $renameIndices[$idx];
}
// If this content block is an array. Parse it.
if (is_array($content))
{
$content = parseArray($content);
}
// Save content to resulting array.
$result[$resultIdx] = $content;
}
return $result;
}
I have a HABTM relationship of Students and Subjects. I simply want to display all the subjects associated with a student without repetition of student details. I dont want the student details to keep repeating in the data output. How do I get the student details as shown below to output once and then all the subjects associated with this student to output?
Group didnt work. I didnt see the answer in the docs but I am sure this is a simple task to do.
http://book.cakephp.org/2.0/en/models/retrieving-your-data.html
$this->Student->recursive = -1;
$joinoptions = array(
// $options['joins'] = array(
array('table' => 'students_subjects',
'alias' => 'StudentsSubject',
'type' => 'LEFT',
'conditions' => array(
'Student.id = StudentsSubject.student_id',
)
),
array('table' => 'subjects',
'alias' => 'Subject',
'type' => 'LEFT',
'conditions' => array(
'StudentsSubject.subject_id=Subject.id',
)
),
);
$fieldoptions = array('Student.id,Student.last_name,Student.first_name,Student.address_street,Student.address_suburb,'
. 'Subject.name,Subject.id, StudentsSubject.id, Student.first_name,Student.last_name,Student.address_lat,Student.address_long,Student.tutor_gender_preference'
);
$student=$this->Student->find('all',array(
'conditions'=> array( 'Student.id' => $student_id),
'fields'=>$fieldoptions,
'joins'=> $joinoptions,
// 'group' => 'Student.id',
'recursive' =>-1,
));
array(
(int) 0 => array(
'Student' => array(
'id' => '216',
'last_name' => 'Ncc',
'first_name' => 'Acc',
'address_street' => '8 sdsdt',
'address_suburb' => 'Hasdsdk',
'address_lat' => 'xx',
'address_long' => 'xx',
'tutor_gender_preference' => 'No Preference'
),
'Subject' => array(
'name' => 'English: Year 7 - 10',
'id' => '9'
),
'StudentsSubject' => array(
'id' => '531'
)
),
(int) 1 => array(
'Student' => array(
'id' => '216',
'last_name' => 'Ncc',
'first_name' => 'Acc',
'address_street' => '8 sdsdt',
'address_suburb' => 'Hasdsdk',
'address_lat' => 'xx',
'address_long' => 'xx',
'tutor_gender_preference' => 'No Preference'
),
'Subject' => array(
'name' => 'Maths: Year 7 - 10',
'id' => '16'
),
'StudentsSubject' => array(
'id' => '532'
)
),
(int) 2 => array(
'Student' => array(
'id' => '216',
'last_name' => 'Ncc',
'first_name' => 'Acc',
'address_street' => '8 sdsdt',
'address_suburb' => 'Hasdsdk',
'address_lat' => 'xx',
'address_long' => 'xx',
'tutor_gender_preference' => 'No Preference'
),
'Subject' => array(
'name' => 'Physics: Year 11',
'id' => '28'
),
'StudentsSubject' => array(
'id' => '583'
)
)
)
How to transform an array below to a nested array?
Please, see expected result code.
By the way, in my real application I'm using SHA-1 hash values as keys & parent keys.
So, all keys are unique.
Thanks.
$arr = array(
array(
'key' => 'apple',
'parent_key' => 'root',
'name' => '1'
),
array(
'key' => 'banana',
'parent_key' => 'root',
'name' => '2'
),
array(
'key' => 'sun',
'parent_key' => 'apple',
'name' => '1.1'
),
array(
'key' => 'moon',
'parent_key' => 'root',
'name' => '3'
),
array(
'key' => 'mars',
'parent_key' => 'sun',
'name' => '1.1.1'
)
);
Expected result:
$arr = array(
array(
'key' => 'apple',
'parent_key' => 'root',
'children' => array(
'key' => 'sun',
'parent_key' => 'apple',
'name' => '1.1',
'children' => array(
'key' => 'mars',
'parent_key' => 'sun',
'name' => '1.1.1'
)
)
),
array(
'key' => 'banana',
'parent_key' => 'root',
'name' => '2'
),
array(
'key' => 'moon',
'parent_key' => 'root',
'name' => '3'
)
);
foreach($initial_array as $subarray){
if($subarray['parent_key'] == 'root'){
$final_array[$subarray['key']] = $subarray;
}else{
$final_array[$subarray['parent_key']]['children'][$subarray['key']] = $subarray;
}
}
The only thing here is that, looking at your example, this code can only handle a depth of one. If you have a 'parent_key' => 'sun', for example, this will not work.