I have an array which looks like this:
Array
(
[0] => Array
(
[1] => Array
(
[name] => vrij
// ...
)
[2] => Array
(
[name] => zat
// ...
)
)
)
I build this array using a for loop; however, I need to push 4 more 'records' to the array, which I can't do in this for loop.
I want the array to look like this, after the pushes:
Array
(
[0] => Array
(
[1] => Array
(
[name] => vrij
// ...
)
[2] => Array
(
[name] => zat
// ...
)
// ...
)
[1] => Array
(
[1] => Array
(
[name] => zon
//...
)
[2] // etc
)
)
The four new records should be pushed to array[1], so I get something like
$array[1][0], $array[1][1], etc. 0 1 2 3 contains the new data.
I tried quite a lot of stuff, to be honest. I need to do four of these pushes, so I was trying a for loop:
for($i = 0; $i < 4; $i++)
{
$day_info = $this->get_day_info($i, $data['init']['next_month'], $data['init']['current_year']);
$push['name'] = $day_info['day_name'];
array_push($data['dates'], $push);
}
and all other kinds of things with [], [1][$i], etc. Sometimes it even adds five arrays! I'm confused as to why it won't just add the [1][1], [1][2],.. I'm probably missing out on something here. Thanks a lot.
If this isn't clear, please do tell and I'll add more code to explain the problem better.
$extradates = array(1 => 'zon', 2 => 'maa');
$data['dates'][] = $extradates;
Will add 2 extra dates to the array using a new index.
Although if I see what you trying to accomplish, I think there might be a better way.
This above works though :)
Related
Note, array_chunk is not my solution (It seems to me).
I have an array of about 150.000 elements
Array
(
[0] => Array
(
[name] => Danilo
[phone] => 33568
)
[1] => Array
(
[name] => Alessandro
[phone] => 392222
)
[2] => Array
(
[name] => Alex
[phone] => 3922
)
[3] => Array
(
[name] => Capa
[phone] => 392
)
)
And so on. I would split this array in several arrays, of (for example) 3.000 elements every one.
I saw array_chunk, but it returns a single array with several subarray.
I need several subarray to store them in a database and elaborate in future.
I'm getting crazy to write a snippet starting from that $temp and divide it into smaller array.
$size_chunks = 1;
$temp = array_chunk($recipients, $size_chunks);
foreach ($temp as $key=>$value)
{
if ($key<$size_chunks)
{
$to_store[] = $temp[$key];
}
//print_r($to_store);
// pseudo sql
// INSERT INTO table (sub_recipient) VALUES ($to_store);
$to_store = array();
}
So, every time that for loop end, reduce temp, store $to_store array and restart for others chunks.
Thank you very much.
PS in my example chunk==1 because starting array is small... ;)
With my example of chunk = 1, I need from starting array this 4 arrays:
Array
(
[0] => Array
(
[name] => Danilo
[phone] => 33568
)
)
Array
(
[0] => Array
(
[name] => Alessandro
[phone] => 39222
)
)
Array
(
[0] => Array
(
[name] => Alex
[phone] => 39222
)
)
Array
(
[0] => Array
(
[name] => Capa
[phone] => 392
)
)
Another explain
1 - With a starting array of 15.000 elements, and chunk of 3.000, I need in output (15.000 / 3.000) = 5 arrays. I will save them in database, so in DB I will have 5 rows (a row for every array).
2 - With a starting array of 4 elements, and chunk of 1, I need in output (4 / 1) = 4 arrays. I will save them in database, so in DB I will have 4 rows (a row for every array).
array_chunks() already does what you want, you just have to save it:
$chunks = array_chunk($array, $size_chunks);
foreach ($chunks as $chunk) {
// save $chunk to your database
}
$recipients = Array(
Array("fdbvfdb","dsacsdcds"),
Array("hrloo","dacdsc"),
Array("dcsdc","adcsd"),
Array("dcsdc","adcsd")
);
$total = count($recipients);//count 150.000 elements
$i=1;
for($i=0;$i<$total;$i++){
$O = array_slice($recipients,$i,1);
print_r($O);
//Your insert/Save code
}
you can use this code there is uses Array_Slice
I'm having trouble handling a nested array I get as result from an API. Print_r($result, true); returns an array looking like this (only much longer):
Array
(
[success] => 1
[return] => Array
(
[sellorders] => Array
(
[0] => Array
(
[sellprice] => 0.00000059
[quantity] => 1076.00000000
[total] => 0.00063484
)
[1] => Array
(
[sellprice] => 0.00000060
[quantity] => 927.41519000
[total] => 0.00055645
)
)
[buyorders] => Array
(
[0] => Array
(
[buyprice] => 0.00000058
[quantity] => 6535.77328102
[total] => 0.00379075
)
[1] => Array
(
[buyprice] => 0.00000057
[quantity] => 118539.39620414
[total] => 0.06756746
)
)
)
)
I need to grab the 3 values (sellprice/buyprice, quantity, total) from the first index of both arrays (sellorders and buyorders) and store them in variables ($sellprice, $sellquantity, $selltotal).
The full example php script I'm using can be found on the bottom of this page. Could anyone help me figure this out?
In php, arrays can more or less have infinite dimensions. You can go deeper within an array's dimensions by adding another set of square brackets. For example,
$array['deep']['deeper']['deepest'][0];
Assuming the indexes in the sellorders and buyorders are the same in your array, you could do
$sellprice = $result['return']['sellorders'][0]['sellprice'];
$sellquantity = $result['return']['sellorders'][0]['quantity'];
$selltotal = $result['return']['sellorders'][0]['total'];
The value should look something like this:
$sellprice = $array['return']['sellorders'][0]['sellprice']
You might want to think about how you iterate over these nested arrays in order to pick out all the values. Furthermore, if you have control over the output I might be better to use a different data structure to enable easier processing.
You can access the values of the nested arrays by adding another pair of square brackets with the appropriate index at the end:
$array['outer']['inner'];
It's up to you to transfer this knowledge to your specific array.
If you want to go thru all of those arrays... try this:
for($i=0; $i<count($array['return']['sellorders']); $i++) {
$this_array = $array['return']['sellorders'][$i];
var_dump($this_array); // it includes sellprice, quantity and total for each entity now.
}
use the same method as above for buyorders as well.
I have a multi-dimensional array (There is more than one item in "data" but i'm just showing one for this question):
Array
(
[data] => Array
(
[0] => Array
(
[to] => Array
(
[data] => Array
(
[0] => Array
(
[name] => fake name
[id] => 668071477234
)
[1] => Array
(
[name] => fake name
[id] => 1345556711
)
)
)
[updated_time] => 2012-12-24T23:46:26+0000
[id] => 327424994013537
)
)
)
I am trying to loop thru the array and determine if the id matches a variable sent from $_REQUEST, and if it does, I only want to return the "updated_time" value of the iteration.
Here's what I have but the date is always wrong, and doesn't match the proper iteration:
foreach($userOutbox['data'] as $outbox){
foreach($outbox['to']['data'] as $user){
if($user['id'] == $_REQUEST['facebook_id']){
$last_message_date = $outbox['updated_time'];
}
}
}
It's late and my eyes and brain are not helping me. Can anyone give me any direction?
Here's the solution that worked for me, just added break 2; Thanks for your help:
foreach($userOutbox['data'] as $outbox){
foreach($outbox['to']['data'] as $user){
if($user['id'] == $_REQUEST['facebook_id']){
$last_message_date = $outbox['updated_time'];
break 2;
}
}
}
Edit: Thanks to #Felix Kling and #mario for pointing me towards named capture groups and PREG_SET_ORDER, I totally learned something today.
I'm curious about a better algorithm per se, though. So please just pretend that there's no preg_match() involved.
Edit 2: Abstracted question
While answering another question here, I stumbled upon the fact that my code for turning
this:
Array
(
[0] => Array (
[0] => 1
[1] => 3
)
[1] => Array (
[0] => Description text
[1] => Different Description text
)
[2] => Array (
[0] => 123.456.12
[1] => 234.567.89
)
[3] => Array (
[0] => 10.00
[1] => 10.00
)
[4] => Array (
[0] => 10.00
[1] => 30.00
)
)
into that:
Array
(
[0] => Array
(
[qty] => 1
[description] => "Description text"
[sku] => 123.456.12
[price] => 10.00
[total] => 10.00
)
…
)
is fugly:
$field_names = array('qty', 'description', 'sku', 'price', 'total');
$result_arr = array();
$num_iter = count(matches[0]);
for ($i = 0; $i < $num_iter; $i++) {
foreach ($field_names as $index => $field_name) {
$result_arr[$i][$field_name] = array_shift($input_arr[$index]);
}
}
Any suggestions for improvement?
There is one simpler way to produce the desired output.
while (count($input_arr[0])) {
$values = array_map("array_shift", & $input_arr);
$result_arr[] = array_combine($field_names, $values);
}
This won't work past PHP 5.3, as it requires forcibly passing a parameter by reference. (Avoiding any dumbing-down-the-language remarks here). But you can of course chop off the entries with a more elaborate manual loop at any time.
The real simplification for such cases is however array_combine to turn a list into an associative array.
I have this code:
$id = new matrix(array(0=>array(1,0.5,3), 1=>array(2,1,4), 2=>array(1/3,1/4,1)));
$soma = $id->times($id)->sumRows();
That outputs this:
matrix Object ( [numbers] => Array ( [0] => Array ( [0] => 12.75 [1] => 22.3333333333 [2] => 4.83333333333 ) ) [numColumns] => 3 [numRows] => 1 )
and:
$total = $id->times($id)->sumRows()->sumTotal($id);
That outputs this:
matrix Object ( [numbers] => Array ( [0] => Array ( [0] => 39.9166666667 ) ) [numColumns] => 3 [numRows] => 1 )
Now, i am trying to make:
foreach ($soma as $value){
$final = (int)$value/(int)$total;
print_r ((int)$final);
}
The output will be 000.
Must be:
12.75/39.9166666667 = 0,3269230769230769
22.3333333333 / 39.9166666667 = ...
and so on
Thanks!
Just some ideas, without really knowing much about the matrix class...
All those (int)s should probably be (float)s, as you seem to want a non-int answer.
$value is itself an object, so you'll probably need to use $value['numbers'][0][0 or 1 or 2]. Same goes for $total.
the issue is solved :
documentation:
get_data($..)