MVC model how to transfer data between multiple views - php

Hello im trying to create a semi MVC project and im new to this so what ive done so far and what ill explain as my problem here may be completely bad on itself so sorry if that is the case.
View 1 tables.phtml
View 2 Calc.phtml
View 3 Result.phtml
Controller Tables.php
Model Tables.php
On my first view is an Form where you input 2 numbers to generate an multiplication table and it puts this in an variable called $aTempArray it looks like this:
Array (
[0] => Array ( [0] => 10 [1] => 6 [2] => 60 )
[1] => Array ( [0] => 7 [1] => 6 [2] => 42 )
[2] => Array ( [0] => 10 [1] => 6 [2] => 60 )
[3] => Array ( [0] => 7 [1] => 6 [2] => 42 )
[4] => Array ( [0] => 2 [1] => 6 [2] => 12 )
[5] => Array ( [0] => 1 [1] => 6 [2] => 6 )
[6] => Array ( [0] => 10 [1] => 6 [2] => 60 )
[7] => Array ( [0] => 6 [1] => 6 [2] => 36 )
[8] => Array ( [0] => 3 [1] => 6 [2] => 18 )
[9] => Array ( [0] => 5 [1] => 6 [2] => 30 )
)
On my second view it generates a form based on the array like this:
10 * 6 = ... <(this is a textbox)
7 * 6 = ... <(this is a textbox)
So when the user submits this second form on the second view I want it to OR send the $aTempArray, OR generate a new one like this:
Array (
[0] => Array ( [0] => 10 [1] => 6 ['answer'] => ... )
[1] => Array ( [0] => 7 [1] => 6 ['answer'] => ... )
)
However, I have no clue on how to send the $aTempArray becouse on the second submit it is empty becouse of the new controller/model that gets generated(or just reset becouse it reloads), and also I dont have a specific idea on how to get the sum data back when I submit the form on the second page. (the 10 * 6 for example becouse this is just text at this point.)
Ive tried a lot and found some things that do make this work but I want to know if there are better ways to do this.
1 is Saving the array in a session variable for example works but I want to avoid using sessions.
2 is making hidden input fields where I save the sums numbers without the answer like this: <input type="hidden" name="rebuildArray" value="10,6/7,6 etc">
And to recreate the array I do something like:
Str_split on /
Put in array
str_split on ,
Put this in arrays inside the main array.
Foreach over every item in the array
if((currentsubarray[0] * currentsubarray[1]) == answersarray[currentpos])
Answer is correct
else
answer is not correct
So can someone say if one of these ways is a semi correct way to do it or give me a push in a direction on how to so this correctly in an MVC stylish way.
And again, I just started with MVC so if this is completely wrong in general im sorry.

Related

Get value multidimensional array and combine product group

I have created a multidimensional array using a csv file.
I get the following array:
Array
(
[0] => Array
(
[0] => Product
[1] => Price
[2] => Quantity
[3] => Date
)
[1] => Array
(
[0] => Teddybear
[1] => 3.789,33
[2] => 2
[3] => 2018-08-14
)
[2] => Array
(
[0] => Teddybear
[1] => 2.702,17
[2] => 1
[3] => 2018-02-17
)
[3] => Array
(
[0] => Table
[1] => 2.932,29
[2] => 5
[3] => 2018-10-09
)
[4] => Array
(
[0] => Lamp
[1] => 671,70
[2] => 3
[3] => 2018-12-11
)
[5] => Array
(
[0] => Teddybear
[1] => 481,21
[2] => 3
[3] => 2018-03-24
)
[6] => Array
(
[0] => Table
[1] => 456,52
[2] => 3
[3] => 2018-05-14
)
[7] => Array
(
[0] => Chair
[1] => 2.960,20
[2] => 2
[3] => 2018-06-20
)
[8] =>
)
I need to create a json file, but before that, I need to count al products and turnover per month
I'm a novice / junior PHP developer and I'm more specialized in WordPress, so forgive me for my bad code and/or bad practices. I'm here to learn.
I really don't know how to select for example all the Teddybears. I know I could do $csv[1][1]; to select turnover for the first Tedybear.

ok here there should be everything you need, I did 3 functions that you can chain together to get what you need, like in the example
$data=[
["Product","Price","Quantity","Date"], // <-- if you want to remove the header remove all the lines with this symbol *
["Teddybear",3789.33,2,"2018-08-14"],
["Teddybear",2702.17,1,"2018-02-17"],
["Table",2932.29,5,"2018-10-09"],
["Lamp",671.70,3,"2018-12-11"],
["Teddybear",481.21,3,"2018-03-24"],
["Table",45.52,3,"2018-05-14"],
["Chair",2960.20,2,"2018-06-20"]
];
function WhereFromColum($data,$colum,$equal){
$ret=[];
array_push($ret,$data[0]); // *
$colum = is_numeric($colum)?$colum:array_search($colum,$data[0]);
for($i=1/* 0 if you remove the header to data*/;$i!=count($data);$i++)
if ($data[$i][$colum]==$equal)
array_push($ret,$data[$i]);
return $ret;
}
function CountFromColum($data,$colum){
$ret=0;
$colum = is_numeric($colum)?$colum:array_search($colum,$data[0]);
for($i=1/* 0 if you remove the header to data*/;$i!=count($data);$i++)
$ret+=$data[$i][$colum];
return $ret;
}
function WhereFromColumData($data,$colum,$min,$max){
$contractDateBegin = new DateTime($min);
$contractDateEnd = new DateTime($max);
$ret=[];
array_push($ret,$data[0]); // *
$colum = is_numeric($colum)?$colum:array_search($colum,$data[0]);
for($i=1/* 0 if you remove the header to data*/;$i!=count($data);$i++){
$paymentDate = new DateTime($data[$i][$colum]);
if ($paymentDate->getTimestamp() > $contractDateBegin->getTimestamp() &&
$paymentDate->getTimestamp() < $contractDateEnd->getTimestamp())
array_push($ret,$data[$i]);
}
return $ret;
}
var_dump(WhereFromColum($data,"Product","Teddybear")); // get all Teddybear's Product
var_dump(CountFromColum($data,"Quantity")); // get all Quantity
var_dump(CountFromColum(WhereFromColum($data,"Product","Teddybear"),"Quantity")); // get all Quantity of Teddybear's Product
var_dump(WhereFromColumData($data,"Date","2018-08-01","2018-12-01")); // get all between 2018-08-01 and 2018-12-01
var_dump(WhereFromColumData(WhereFromColum($data,"Product","Teddybear"),"Date","2018-08-01","2018-12-01")); // get all Teddybear's Product between 2018-08-01 and 2018-12-01
usually I don't usually write code but explain how to do it but in your case it was too complex so please kindly read the three functions carefully and try to understand how they work, ps if you want to improve your skils in php I suggest you play a with these functions and modify them to fit what you need best. when you understand how they work you can also create another one with the same logic of nesting that allows you to make much more advanced filters.

How to show specific value from array with mustache?

I have an array like:
Array
(
[0] => Array
(
[title] => Title 1
[value] => Value 1
[id] => 1428735262
)
[1] => Array
(
[title] => Title 2
[value] => Value 2
[id] => 2428735262
)
[2] => Array
(
[title] => Title 3
[value] => Value 3
[id] => 3428735262
)
)
With mustache I am able to iterate overall of them using:
{{#values}}
<h1>{{title}}</h1>
{{{value}}}
{{/values}}
But what if I only want to show specific value, for example only second element of the array (one with Title 2)?
I tried like:
{{#values}}
{{#2428735262}}
<h1>{{title}}</h1>
{{{value}}}
{{/2428735262}}
{{/values}}
and:
{{#values.2428735262}}
<h1>{{title}}</h1>
{{{value}}}
{{/values.2428735262}}
But none worked. Does anyone know how to get specific item from array ?
PS. I am using PHP version of mustache. Thanks

You can use this:
{{values.1.value}}
Read more at:
https://github.com/bobthecow/mustache.php/wiki/Variable-Resolution

HTML input array name coming through as a string

I have an input checkbox field as follows:
<input type="checkbox" name="group_items[<?=$item_id?>][<?=$group_id?>]" value="1" />
There are several of these in a matrix grid. On submission, it should post something like this:
(array) Array
(
[1] => Array
(
[1] => 1
[3] => 1
[5] => 1
[9] => 1
[13] => 1
[15] => 1
)
[2] => Array
(
[1] => 1
[3] => 1
[5] => 1
[9] => 1
[13] => 1
[15] => 1
)
[3] => Array
(
[2] => 1
[4] => 1
[8] => 1
[10] => 1
[14] => 1
)
[4] => Array
(
[2] => 1
[4] => 1
[8] => 1
[10] => 1
[14] => 1
)
)
Most of the time, this seems to be okay.
I then run this:
if(!empty($_POST['group_items']))
{
foreach($_POST['group_items'] as $item_id => $item_groups)
{
$group_ids = array_keys($item_groups);
foreach($group_ids as $group_id)
{
// do something
}
}
}
However, on occassion, I get this error:
Uncaught PHP Error: array_keys() expects parameter 1 to be array, string given
It's as though it's posting this:
(array) Array
(
[1] => (string)
)
I am well aware that I can perform an is_array check on $item_groups, however I need to understand how this can even be a string instead of an array.
I am also aware that I could change the values from 1 to be what the key is currently set to, and have a zero-based index, like this:
(array) Array
(
[1] => Array
(
[0] => 1
[1] => 3
[2] => 5
[3] => 9
[4] => 13
[5] => 15
)
)
However this would not do anything to resolve the issue of the value of [1] being a string instead of an array.
I'm also unable to log out the post data as a client has lost data due to this error and logging the post to see what it contains would risk them losing more data. This is also why an is_array check is not the solution as it would mean the posted data has still somehow been lost and doesn't solve the actual cause.
I have checked the server limits for the maximum number of fields that can be posted and it is high enough; I can submit hundreds of checkboxes and they come through fine. This also seems to be an intermittent error and can work as expected deveral times, and then cause the error the next.
Does anybody have any suggestions on a cause?
Edit: Have now got a dump of the data when it errors.
(array) Array
(
[0] => 1
)

Yii createCommand() return data set in different array format

I'm a beginner in this framework. Though I have gone over the basics, there is one thing which is troubling me. As of now, I'm using
$group_sql = "SELECT uid FROM {$table}";
$group_users = Yii::app()->db->createCommand($group_sql)->queryAll();
print_r($group_users);
results in
Array
(
[0] => Array
(
[uid] => 2
)
[1] => Array
(
[uid] => 3
)
[2] => Array
(
[uid] => 4
)
[3] => Array
(
[uid] => 5
)
)
But I'd like to change the format in which the data is returned. What I'm looking for is something like
Array
(
[0] => 2
[1] => 3
[2] => 4
[3] => 5
)
OR
Array
(
[uid] => Array
(
[0] => 2
[1] => 3
[2] => 4
[3] => 5
)
)
I'm aware that I can go through the documentation and get my answer, but due to time constraints, I'm taking the liberty to shamelessly ask this over here.
Thanks in advance.

Use queryColumn() method instead of queryAll()

Sorting Multidimensional Array by Specific Key

EDIT: For anyone who might come across this post with a similar problem, It was solved by taking konforce's supplied answer and tweaking around a bit with the custom sorting function:
function cmp($a, $b) {
if ($a[5] == $b[5]) {
return ($a[3] < $b[3]) ? -1 :1;
}
return ($a[5] > $b[5]) ? -1 : 1;
}
Notice $a[5] == $b[5] does not return zero. It was changed to check who has the most losses and then sort it in ASC order. I'm sure you can even keep going and add another if-statement in there in-case they have the same losses.
Lastly, all you do is usort($ARRAY, "cmp"); and finito!!!
Original Post
My apologies for coming up with yet another MD Array sorting question but I'm just not getting it. I've searched aplenty
for a solution and although many sites have provided what seemed like a logical answer I still have not been able to figure it out.
My problem is since I'm still learning its been rather difficult for me to grasp the concept of using usort with a custom comparing
function. Atleast, thats what I have seen the most when others have tried to sort MD Arrays.
I'm working on a small project to sharpen up on my php skills. Its a very basic tournament standings script that holds a team's information within an array. I would like to sort the array by most points($array[X][X][5]).
So the array looks something like this:
Array (
[0] => Array (
[0] => Array (
[0] => cooller
[1] => 6
[2] => 6
[3] => 0
[4] => 0
[5] => 18
)
)
[1] => Array (
[0] => Array (
[0] => strenx
[1] => 9
[2] => 5
[3] => 1
[4] => 3
[5] => 18
)
)
[2] => Array (
[0] => Array (
[0] => rapha
[1] => 10
[2] => 8
[3] => 1
[4] => 1
[5] => 25
)
) [3] => Array (
[0] => Array (
[0] => ronald reagan
[1] => 5
[2] => 4
[3] => 0
[4] => 1
[5] => 13
)
)
)
I would like to sort it by most points(cell #5), so it would look like this after sorting:
Array (
[0] => Array (
[0] => Array (
[0] => rapha
[1] => 10
[2] => 8
[3] => 1
[4] => 1
[5] => 25
)
)
[1] => Array (
[0] => Array (
[0] => cooller
[1] => 6
[2] => 6
[3] => 0
[4] => 0
[5] => 18
)
)
[2] => Array (
[0] => Array (
[0] => strenx
[1] => 9
[2] => 5
[3] => 1
[4] => 3
[5] => 18
)
)
[3] => Array (
[0] => Array (
[0] => ronald reagan
[1] => 5
[2] => 4
[3] => 0
[4] => 1
[5] => 13
)
)
)
The player with 25 points would be at the top, followed by 18, 18, and lastly 13. Sorry for my earlier post, was having difficulty wording my question correctly. Thanks in advanced!

I think you want something like this:
usort($standings, function($a, $b) { return $b[0][5] - $a[0][5]; });
Or prior to PHP 5.3:
function cmp($a, $b) { return $b[0][5] - $a[0][5]; }
usort($standings, 'cmp');
When using usort, the $a and $b parameters will be one "layer" into the supplied array. So in your case, an example of $a or $b will be:
[0] => Array (
[0] => cooller
[1] => 6
[2] => 6
[3] => 0
[4] => 0
[5] => 18
)
I'm not sure why you have an extra containing array there, but as you can see, you want to sort based on the [0][5] position.

usort($standings[0][0][5], 'cmp') won't work because the first parameter isn't an array to sort, it's just a single number, the points.

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