I have the following challenging array of associative arrays in php.
array(
(int) 0 => array(
'table' => array(
'venue' => 'venue1',
'name' => 'name1'
)
),
(int) 1 => array(
'table' => array(
'venue' => 'venue1',
'name' => 'name2'
)
),
(int) 2 => array(
'table' => array(
'venue' => 'venue2',
'name' => 'name3'
)
),
(int) 3 => array(
'table' => array(
'venue' => 'venue3',
'name' => 'name4'
)
)
)
I want to extract a list of relevant names out based on the venue. I would like to implement a function ExtractNameArray($venue) such that when $venue=='venue1', the returned array will look like array('name1', 'name2')
I have been cracking my head over this. I am starting with $foreach and am stuck. How can this be done in php? Thank you very much.
first, you have to pass the array with the data to the function
second, the name of the function should start with lower character (php conventions)
try this
function extractNameArray($array, $venue) {
$results = array();
foreach($array as $key=>$value) {
if(isset($value['table']['venue'])&&$value['table']['venue']==$venue) {
isset($value['table']['name']) && $results[] = $value['table']['name'];
}
}
return $results;
}
function ExtractNameArray($venue)
{
$array = array(); // your array
$return_array = array();
foreach($array as $arr)
{
foreach($arr['table'] as $table)
{
if($table['venue'] == $venue)
{
$return_array[]['name'] = $table['name'];
}
}
}
return $return_array;
}
You must define $array with you array. Good Luck
Related
i want to loop all the data i call but that runs only one data
I use Codeigniter framework
Model:
$this->db->where('group_user', 'upt_perpus')->order_by('idmodul', 'DESC')->get('menu')->result_array();
Controller:
$data = array(
'about' => array(
'sejarah' => 'Sejarah',
'visi_misi' => 'Visi, Misi & Tujuan',
'struktur' => 'Struktur Organisasi'
),
'services' => array(),
'peraturan' => array(
'umum' => 'Umum',
'khusus' => 'Khusus',
'pelayanan_perpus' => 'Pelayanan Perpustakaan'
)
);
$konten = $this->kontens->getPerpus();
foreach ($konten as $key) {
$data['services'] = array(
$key['slug'] => $key['judul']
);
}
return $data;
If you want an associative array in $data['services'], you need to assign to a key of the array.
foreach ($konten as $key) {
$data['services'][$key['slug']] = $key['judul'];
}
I would like to pass a while loop result as a value to three dimensional array,i have tried but i couldn't get it.I am trying to solve this from few days.Any suggestions or answers are appreciated.Thank you
$messages = array(
'sender' => "akhil",
'messages' => array(
//////////////while loop starts
while($i < $data){
array(
'number' =>$data[$i],//////here i want to pass the while loop
variable
'text' => rawurlencode('Hello,.........')
)
$i++;
}
/////////////while loop ends
)
);
///the would like to get the below result
$messages = array(
'sender' => "akhil",
'messages' => array(
array(
'number' => 918xxxxxx,
'text' => rawurlencode('Hello,------')
),
array(
'number' => 9196xxxxxx,
'text' => rawurlencode('Hello,----')
)
), array(
'number' => 919xxxxx,
'text' => rawurlencode('Hello,----')
)
)
);
You just need to create the array outside the while loop and then push values into it inside the loop. Your code is almost there...
$messages = array('sender' => "akhil",
'messages' => array()
);
while ($i < count($data)) {
$messages['messages'][] = array('number' => $data[$i],
'text' => rawurlencode('Hello,.........'));
$i++;
}
Demo on 3v4l.org
What you are looking for is called an Anonymous function.
You can achieve your expected behavior by doing this:
'messages' => (function(){
$res = [];
while($i < $data){
$res[] = [
'number' =>$data[$i],//////here i want to pass the while loop variable
'text' => rawurlencode('Hello,.........')
];
$i++;
}
return $res;
})(),
...
I do not know the exact structure of your data, but I would swap the while for an array_map(). It would look like this:
'messages' => array_map(function($d){
return [
'number' =>$d,
'text' => rawurlencode('Hello,.........')
]
},$data),
...
Hohpe that helps,
I have an array that looks like this:
[0] => Array
(
[name] => typeOfMusic
[value] => this_music_choice
)
[1] => Array
(
[name] => myMusicChoice
[value] => 9
)
[2] => Array
(
[name] => myMusicChoice
[value] => 8
)
I would like to reform this into something with roughly the following structure:
Array(
"typeOfMusic" => "this_music_choice",
"myMusicChoice" => array(9, 8)
)
I have written the following but it doesn't work:
foreach($originalArray as $key => $value) {
if( !empty($return[$value["name"]]) ){
$return[$value["name"]][] = $value["value"];
} else {
$return[$value["name"]] = $value["value"];
}
}
return $return;
I've tried lots of different combinations to try and get this working. My original array could contain several sets of keys that need converting to arrays (i.e. it's not always going to be just "myMusicChoice" that needs converting to an array) ?
I'm getting nowhere with this and would appreciate a little help. Many thanks.
You just need to loop over the data and create a new array with the name/value. If you see a repeat name, then change the value into an array.
Something like this:
$return = array();
foreach($originalArray as $data){
if(!isset($return[$data['name']])){
// This is the first time we've seen this name,
// it's not in $return, so let's add it
$return[$data['name']] = $data['value'];
}
elseif(!is_array($return[$data['name']])){
// We've seen this key before, but it's not already an array
// let's convert it to an array
$return[$data['name']] = array($return[$data['name']], $data['value']);
}
else{
// We've seen this key before, so let's just add to the array
$return[$data['name']][] = $data['value'];
}
}
DEMO: https://eval.in/173852
Here's a clean solution, which uses array_reduce
$a = [
[
'name' => 'typeOfMusic',
'value' => 'this_music_choice'
],
[
'name' => 'myMusicChoice',
'value' => 9
],
[
'name' => 'myMusicChoice',
'value' => 8
]
];
$r = array_reduce($a, function(&$array, $item){
// Has this key been initialized yet?
if (empty($array[$item['name']])) {
$array[$item['name']] = [];
}
$array[$item['name']][] = $item['value'];
return $array;
}, []);
$arr = array(
0 => array(
'name' => 'typeOfMusic',
'value' => 'this_music_choice'
),
1 => array(
'name' => 'myMusicChoice',
'value' => 9
),
2 => array(
'name' => 'myMusicChoice',
'value' => 8
)
);
$newArr = array();
$name = 'name';
$value = 'value';
$x = 0;
foreach($arr as $row) {
if ($x == 0) {
$newArr[$row[$$name]] = $row[$$value];
} else {
if (! is_array($newArr[$row[$$name]])) {
$newArr[$row[$$name]] = array();
}
array_push($newArr[$row[$$name]], $row[$$value]);
}
$x++;
}
Well, I am here again dealing with arrays in php. I need your hand to guide me in the right direction. Suppose the following array:
-fruits
--green
---limon
---mango
--red
---apple
-cars
--ferrari
---enzo
----blue
----black
---318
--lamborg
---spider
---gallardo
----gallado-96
-----blue
-----red
-----gallado-98
The - (hyphen) symbol only illustrates the deep level.
Well, I need to build another array (or whatever), because it should be printed as an HTML select as below:
-fruits
--green
---limon
---mango
--red
---apple
-cars
--ferrari
---enzo
----blue
----black
---318
--lamborg
---spider
---gallardo
----gallado-96
-----blue
-----red
-----gallado-98
Looks that for each level element, it should add a space, or hyphen to determinate that it belongs to a particular parent.
EDIT
The have provide an answer provideng my final code. The html select element will display each level as string (repeating the "-" at the begging of the text instead multi-level elements.
Here's a simple recursive function to build a select dropdown given an array. Unfortunately I'm not able to test it, but let me know if it works. Usage would be as follows:
function generateDropdown($array, $level = 1)
{
if ($level == 1)
{
$menu = '<select>';
}
foreach ($array as $a)
{
if (is_array($a))
{
$menu .= generateDropdown($a, $level+1);
}
else
{
$menu .= '<option>'.str_pad('',$level,'-').$a.'</option>'."\n";
}
}
if ($level == 1)
{
$menu = '</select>';
}
return $menu;
}
OK, I got it with the help of #jmgardhn2.
The data
This is my array:
$temp = array(
array(
'name' => 'fruits',
'sons' => array(
array(
'name' => 'green',
'sons' => array(
array(
'name' => 'mango'
),
array(
'name' => 'banana',
)
)
)
)
),
array(
'name' => 'cars',
'sons' => array(
array(
'name' => 'italy',
'sons' => array(
array(
'name' => 'ferrari',
'sons' => array(
array(
'name' => 'red'
),
array(
'name' => 'black'
),
)
),
array(
'name' => 'fiat',
)
)
),
array(
'name' => 'germany',
'sons' => array(
array(
'name' => 'bmw',
)
)
),
)
)
);
Recursive function
Now, the following function will provide an array with items like [level] => [name]:
function createSelect($tree, $items, $level)
{
foreach ($tree as $key)
{
if (is_array($key))
{
$items = createSelect($key, $items, $level + 1);
}
else
{
$items[] = array('level' => $level, 'text' => $key);
}
}
return $items;
}
Calling the funcion
Now, call the function as below:
$items = createSelect($temp, array(), 0);
Output
If you iterate the final $items array it will look like:
1fruits
2green
3mango
3banana
1cars
2italy
3ferrari
4red
4black
3fiat
2germany
3bmw
$array = array(
array(
'id' => 1,
'name' => 'John Doe',
'upline' => 0
),
array(
'id' => 2,
'name' => 'Jerry Maxwell',
'upline' => 1
),
array(
'id' => 3,
'name' => 'Roseann Solano',
'upline' => 1
),
array(
'id' => 4,
'name' => 'Joshua Doe',
'upline' => 1
),
array(
'id' => 5,
'name' => 'Ford Maxwell',
'upline' => 1
),
array(
'id' => 6,
'name' => 'Ryan Solano',
'upline' => 1
),
array(
'id' =>7,
'name' => 'John Mayer',
'upline' => 3
),
);
I want to make a function like:
function get_downline($userid,$users_array){
}
Then i want to return an array of all the user's upline key with the value as $userid. I hope anyone can help. Please please...
You could do it with a simple loop, but let's use this opportunity to demonstrate PHP 5.3 anonymous functions:
function get_downline($id, array $array) {
return array_filter($array, function ($i) use ($id) { return $i['upline'] == $id; });
}
BTW, I have no idea if this is what you want, since your question isn't very clear.
If you need do search thru yours array by $id:
foreach($array as $value)
{
$user_id = $value["id"];
$userName = $value["name"];
$some_key++;
$users_array[$user_id] = array("name" => $userName, "upline" => '1');
}
function get_downline($user_id, $users_array){
foreach($users_array as $key => $value)
{
if($key == $user_id)
{
echo $value["name"];
...do something else.....
}
}
}
or to search by 'upline':
function get_downline($search_upline, $users_array){
foreach($users_array as $key => $value)
{
$user_upline = $value["upline"];
if($user_upline == $search_upline)
{
echo $value["name"];
...do something else.....
}
}
}
Code :
function get_downline($userid,$users_array)
{
$result = array();
foreach ($users_array as $user)
{
if ($user['id']==$userid)
$result[] = $user['upline'];
}
return result;
}
?>
Example Usage :
get_downline(4,$array);