first of, just wanted to let you know that I am a newbie at CI. but I am having trouble with this piece of code where is breaking and I can't seem to be able to find the answer anywhere.
for some reason the code is breaking at the first if statement.. if possible could you help me out understand what is really happening there?
Thank you all for your help!
function main
{
$this->load->model(getData) psudo code for this area...
}
---model---
function getData....
{
Sql = this->db->query(sql code that returns all the information required.)
$result = $sql->result_array();
$types = array ( 'EVENT|TIME' => array( 'id' => 1, 'name' => 'Regular' ),
'PROPOSITION|REGULAR' => array( 'id' => 2, 'name' =>'Propositions'),
'EVENT|TIME' => array( 'id' => 3, 'name' => 'Now' ),
'PROPOSITION|FUTURES' => array( 'id' => 4, 'name' => 'Future' ));
$var = array();
foreach ($result as $event) {
$cat = $event['type'] . '|' . $event['sub_type'];
$typeId = $types[$cat]['id'];
if(!is_array($var[$event['event_id']]['var'][$event['type_id']]))
{
if(!is_array($var[$event['event_id']]))
{
$var[$event['event_id']] = array( 'event_name' =>
$event['event_name'],'event_abbreviation' =>
$event['event_abbreviation']);
}
$var[$event['event_id']]['var'][$event['type_id']] = array(
'type_name' => $event['abbreviation'],'type_abbreviation' => $event['name']
);
}
$event[$event['event_id']]['var'][$event['type_id']]['types'][$typeId] =
$types[$cat]['name'];
}
return $myResults;
}
In this line
if(!is_array($var[$event['event_id']]['var']$event['type_id']]))
You are missing a [ somewhere. I'm guessing before $event['type_id'].
So replace with:
if(!is_array($var[$event['event_id']]['var'][$event['type_id']]))
Related
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 never used generators in PHP. I understand the way to use it :
Foreach an array to do some tasks for each value like greping a specific line into a big file to remove some caracteres..
What I need :
I need to retrieve all bands from my dabatase. Sure I have the 'limit' argument to don't exceed the PHP's memory (there're 30 000 bands..).
I have to filters values and return a new array to the client into my REST API.
What I want to know :
Is it interesting for me to create a method into a trait called 'generator' to perform the code bellow ?
In all cases, I have to create a new array to return it into my method
$bands = Models\Bands::find($bandsParameters);
$json = [];
foreach ($bands as $band) {
$followers = $band->getFollowers();
$followersArr = [];
foreach ($followers as $follower) {
$followerImage = $follower->getImage();
$followerObj = (object)[
'id' => $follower->id,
'username' => $follower->username,
'image' => $followerImage->url,
'online' => $follower->online,
'createdOn' => $follower->createdOn,
'updatedOn' => $follower->updatedOn,
'lastLogin' => $follower->lastLogin,
];
$followersArr[] = $followerObj;
}
$info = $band->getInfo($bandInfoParameters)->getFirst();
$bandObj = (object)[
'id' => $band->id,
'name' => $band->name,
'style' => $band->styles,
'country' => $band->country,
'summary' => isset($info->summary) ? $info->summary : null,
'followers' => $followersArr,
'createdOn' => $band->createdOn,
'updatedOn' => $band->updatedOn,
'authoredBy' => $band->authoredBy,
'updatedBy' => $band->updatedBy,
];
$json[] = $bandObj;
}
return ['key' => 'bands', 'value' => $json];
Well, I am here again dealing with arrays in php. I need your hand to guide me in the right direction. Suppose the following array:
-fruits
--green
---limon
---mango
--red
---apple
-cars
--ferrari
---enzo
----blue
----black
---318
--lamborg
---spider
---gallardo
----gallado-96
-----blue
-----red
-----gallado-98
The - (hyphen) symbol only illustrates the deep level.
Well, I need to build another array (or whatever), because it should be printed as an HTML select as below:
-fruits
--green
---limon
---mango
--red
---apple
-cars
--ferrari
---enzo
----blue
----black
---318
--lamborg
---spider
---gallardo
----gallado-96
-----blue
-----red
-----gallado-98
Looks that for each level element, it should add a space, or hyphen to determinate that it belongs to a particular parent.
EDIT
The have provide an answer provideng my final code. The html select element will display each level as string (repeating the "-" at the begging of the text instead multi-level elements.
Here's a simple recursive function to build a select dropdown given an array. Unfortunately I'm not able to test it, but let me know if it works. Usage would be as follows:
function generateDropdown($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);
I have an array in this form:
$data = array(
array(
'id' => '1',
'bar' => 'foo',
'page' => 'front',
),
array(
'id' => 'bar',
'bar' => 'foo',
'page' => 'front',
),
array(
'id' => 'different,
'bar' => 'bar',
'page' => 'back',
),
array(
'id' => 'another',
'title' => __("Custom CSS",'solidstyle_admin'),
'foo' => 'bar',
'page' => 'back',
),
);
And I want to list all ids grouped by pages and saved as variables, so if the above array is an input then output will look just like this one:
$front = array('1','bar');
$back = array('different','another');
//$data['page'] = array($id1, $id2, (...));
I was trying to do that using foreach and this is how it starts:
function my_output() {
foreach($data as $something) {
$id = $something['id'];
$page = $something['page'];
}
return $output;
}
I was trying multiple foreach loops, and the best result I got was:
front = 1
front = bar
back = different
back = another
But I have absolutely no idea how to achieve what I want to do, I don't want anyone to do my job, just any hints? Keep in mind I'm a bit new to PHP and I don't know too much about arrays.
Thank you!
Sounds like you want:
$ids = array();
foreach ($data as $page) {
$pageName = $page['page'];
// create an empty array for your IDs
if (!isset($ids[$pageName])) {
$ids[$pageName] = array();
}
// add to the array of IDs
$ids[$pageName][] = $page['id'];
}
var_dump($ids); // array('front' => array('1', 'bar'), ...
Stick with the loop idea and do a conditional check.
function my_output() {
$front = array();
$back = array();
foreach($data as $something) {
$id = $something['id'];
$page = $something['page'];
if ($page === 'front') {
$front[] = $id;
} else if ($page === 'back') {
$back[] = $id;
}
}
// Not sure what you want to return here, but you could return an array of pages
$output = array('front' => $front, 'back' => $back);
return $output;
}
This will return something similar to:
$output = array(
'front' => array(
0 => '1',
1 => 'bar',
),
'back' => array(
0 => 'something',
1 => 'another',
)
)
Edit: Keep in mind that my answer only accounts for the two pages you listed in your answer. If you have more pages you can also use what cbuckley's answer showed.