separate column by id using foreach - php

I have a score table, and I will separate the column by id
my table is,
and I hope the output table will
I don't know the logic if I use foreach in CodeIgniter, thanks
and have tried this
foreach ($data as $row) {
$records["list"][] = array(
$row['ID_STUDENT'],
$row['ID_TYPE'],
$row['SCORE'],
);
}

This will build you the array you are looking for, although I would suggest that you should write a query to retrieve your data in the format you are looking for.
$studentsScores = [
['idType'=>1, 'idStudent'=>1, 'score'=>'80'],
['idType'=>1, 'idStudent'=>2, 'score'=>'60'],
['idType'=>2, 'idStudent'=>3, 'score'=>'70'],
['idType'=>1, 'idStudent'=>4, 'score'=>'80'],
['idType'=>3, 'idStudent'=>1, 'score'=>'90'],
['idType'=>4, 'idStudent'=>2, 'score'=>'100'],
];
// Columns with default values
$columns = array_fill_keys(array_unique(array_column($studentsScores, 'idType')), 0);
$res = [];
foreach($studentsScores as $record){
if(!isset($res[$record['idStudent']])) $res[$record['idStudent']] = $columns;
$res[$record['idStudent']][$record['idType']] = $record['score'];
}
print_r($res);
Hope this helps,

Related

what is the alternative of insertGetId for multiple row insertion in laravel

I am inserting multiple rows in table, And I need to get both row id to insert another table, I was using this query for single row :
$ppfdata=[];
foreach($request->package_type_id as $ppfkey => $ppfno){
$ppfinput=[];
$ppfinput['paid_amount'] = $post_data['package_price'][$ppfkey];
$ppfinput['enroll_able'] = $post_data['enrollable'][$ppfkey];
$ppfinput['user_id'] = $post_data['user_id'];
$ppfinput['package_id'] = $post_data['package_id'][$ppfkey];
$ppfinput['plan_id'] = $post_data['plan_id'][$ppfkey];
$ppfinput['status'] = $post_data['status'][$ppfkey];
$ppfdata[]=$ppfinput;
}
$update_transections = DB::table('package_plan_fees')->insertGetId ($ppfdata);
What should I use for multiple rows ?
You need to loop over the items. You can do this:
$ids = [];
foreach ($ppfdata as $item) {
$ids[] = DB::table('package_plan_fees')->insertGetId($item);
}

PHP Function to search values in database and replace in a loop

I am building a web scraper in PHP and I am not so experimented with all this stuff. What I am trying to achieve is as following:
Split an array of values into strings using foreach
Search any value in a predefined MYSQL table. If value is identical with one of the defined ones, it should be replaced. Otherwise it should remain the same
Put the new values back into an array
Below is my snippet. Basic structure of database is "ID, Marime, Inlocuire". "Marime" is the column to search on, and "Inlocuire" is the column to replace value with.
foreach ($marimi as $marime) {
$sizes[]=trim(strtok($marime->innertext, '-'));
$newArray = array_filter($sizes, 'myFilter');
foreach ($newArray as $marimeFixa) {
$marimeDefinita = $conn->query("SELECT * FROM oc_1_tabelmarimi WHERE Marime = '$marimeFixa'");
if($marimeDefinita->num_rows == 0) {
$marimeFixa = $marimeFixa;
} else {
$marimeFixa = $marimeDefinita['Inlocuire'];
}
$arrayMarimi[] = $marimeFixa;
}
print_r($arrayMarimi);
}
However this doesn't seem to work. Any help is greatly appreciated. Thanks!
try:
$marimeDefinita = $marimeDefinita->fetch_assoc();
before if($marimeDefinita->num_rows == 0) {
or
$marimeFixa = $marimeDefinita->Inlocuire;

Getting a an array from for loop and use another for loop with that array in PHP

I have a for loop, and will form two arrays in the loo
foreach ($data as $key => $value) {
........
........
$user_insert[] = [
'keyy' => $value,
'key' => $value,
....
...
...
];
$someArray1[] = [
/*'user_id' => $insert_id,*/
'key1' => $value1,
'keyy' => $value,
.......
........
];
}
the count of $user_insert[] array is 4, the count of $someArray1 is 15.
after this for loop, I need to insert $user_insert array data to the database and use that inserted_id to insert next array $someArray1
foreach($user_insert as $insert_user){
$unique_user_insert = array_unique($insert_user);
//dd($unique_user_insert);
$insert_id = DB::table('users')->insertGetId($unique_user_insert);
foreach ($someArray1 as $someArray) {
$someArray['user_id'] = $insert_id;
DB::table('table_name')->insert($someArray);
}
}
So the problem here is the data in the second loop is inserting 60 times(4 * 15). I need to insert only 15 rows.
The data($someArray1) is coming from the first for loop, but I need to add a user_id to that array which I get after the insert operation in second for loop.
So how can i insert only 15 rows.
I'm going to assume that you are able to access your $someArray1 using the $insert_id value to find the appropriate user data.
foreach($user_insert as $insert_user){
$unique_user_insert = array_unique($insert_user);
$insert_id = DB::table('users')->insertGetId($unique_user_insert);
// Get the user information you need as $someArray1 should be user_id=>data
$userData = $someArray[$insert_id];
$userData['user_id'] = $insert_id;
// No need for an inner loop, just access the necessary properties of the loop you created earlier.
DB::table('table_name')->insert($userData);
}
Your tags indicate that you are using Laravel 5 too. If you are using the eloquent ORM, some of the insertion and ID retrieval can be cleaned up by creating Models for your DB tables.
Actually, each time you process a line from $user_insert, you loop over $someArray1 instead of fetching just the line you need.
The thing is to understand the line you need. As much as I can understand your piece of code, I would say the easiest (most readable) way of doing it is by using a for loop, not a foreach one :
for( $i = 0, $iMax = count( $user_insert ); $i < $iMax; ++$i ){
$insert_user = $user_insert[$i];
// Put your `$user_insert` insert code here
$someArray1[$i]['user_id'] = $insert_id;
DB::table('table_name')->insert( $someArray[$i] ); // Note the [$i] here
}
You also may do that with foreach by requesting indices :
foreach( $user_insert as $i => $insert_user ){
$unique_user_insert = array_unique($insert_user);
//dd($unique_user_insert);
$insert_id = DB::table('users')->insertGetId($unique_user_insert);
// Now use $i requested above :
$someArray1[$i]['user_id'] = $insert_id;
DB::table( 'table_name' )->insert( $someArray1[$i] );
}

How to sort a multidimensional array of columns by a specific column in PHP?

I found on the PHP documentation the function "array_multisort" that is meant to sort an array "of columns". They provide one example where the user has an array of rows and then the user has to transform this array of rows into an array of columns. In my case the array is already set by columns, such as:
tablearray
{
['Employee_ID'] = {0 => row1, 1 => row2, 2 => row3, 3 => row4}
['First_Name'] = {0 => row1, 1 => row2, 2 => row3, 3 => row4}
['LastName'] = {0 => row1, 1 => row2, 2 => row3, 3 =>row4}
}
I want to sort by Employee_ID and I need all the other columns to follow the same order. I tried:
array_multisort($tablearray['Employee_ID'], SORT_ASC);
But it only sorts the first column (which becomes a mess). The array has more than 10 columns and it changes the column names depending on the search (the columns names are its keys).
On PHP's documentation for this function, the example provided shows that the after transforming the rows array into a columns array, we should use the original array as a third parameter to match the keys - I don't have the "original" array to do the match since I didn't transform anything.
Thank you.
Desired output, as suggested by one user:
Original:
array
{
['Employee_ID'] = (1002, 4508, 0002, 1112)
['Business_Unit'] = ('UER', 'ABC', 'XYZ', 'EER')
['LastName'] = ('Smith', 'Vicente', 'Simpson', 'Thompson')
}
Sorted by Employee ID:
array
{
['Employee_ID'] = (0002, 1002, 1112, 4508)
['Business_Unit'] = ('XYZ', 'UER', 'EER', 'ABC')
['LastName'] = ('Simpson','Smith', 'Thompson', 'Vicente')
}
--
My original array is a database query output:
Array
(
[0] => Array
(
[Employee_ID] => 0000
[Supervisor_ID] => 00000
[Location_Descr] => somewhere
[Start_Date] => 06/03/2002
[Service_Date] => 06/03/2002
[Rehire_Date] => 00/00/00
[Business_Unit] => YYYY
[Job_Title] => Manager
[Email] => email#example.com
[Dept_Desc] => bla bla bla
[Employee_Name_LF] => Last, First
[Supervisor_Name_LF] => Last, First
[Term_Date] => 00/00/00
[Preferred_Name] => Someone
[Source] => Sheet2
)
)
There a several more rows.
The main purpose is to show the results as an HTML table and to generate a CSV file. I already made those functions using the modified structure (the first that I posted). I thought it would be easier to deal with that structure... Indeed it was, but not for sorting unfortunately.
The array_multisort documentation (http://php.net/manual/en/function.array-multisort.php) suggests separating each column as an individual array.. However, as you can see I have several columns (and the user can select more or less to be shown before performing the query.. So I can't just list all of them on the statement).
I a willing to change everything just to make the code better to be worked with.
Ugly - would be a lot easier if you formatted the input tables.
$arr = array(
'Employee_ID' => array('1002', '4508', '0002', '1112'),
'Business_Unit' => array('UER', 'ABC', 'XYZ', 'EER'),
'LastName' => array('Smith', 'Vicente', 'Simpson', 'Thompson')
);
$employees = array();
foreach (range(0, sizeof($arr[current(array_keys($arr))]) - 1) as $k) {
$emp = array();
foreach ($arr as $col => $vals) {
$emp[$col] = $arr[$col][$k];
}
$employees[] = $emp;
}
$sort = array();
foreach ($employees as $k => $v) {
$sort[$k] = $v['Employee_ID'];
}
array_multisort($sort, SORT_ASC, $employees);
print_r($employees);
And to put back in the original format:
$arr_sorted = array();
foreach (array_keys($arr) as $col) {
$arr_sorted[$col] = array();
foreach ($employees as $emp) {
$arr_sorted[$col][] = $emp[$col];
}
}
print_r($arr_sorted);
Thank you for posting the extra details in your question, as they did help in understanding the intent of your question.Now, you didn't tell us how that table should look; If you want the employees one per row, or one per column. Which is kind of crucial to know. Normally one would have one employee per line, especially if this is to be exported to CVS. However, I have a suspicion that it's the latter you want. Otherwise you've gone about this in a very overly complicated manner.Point in case: Normal one-per-row layout:
<?php
$db = new PDO();
// Defining the fields we need here, to avoid having too long a string for the query.
$fields = "e.employee_id, e.first_name, e.lastname, u.business_unit, s.email";
// Do the sorting in the database itself. Not only is this faster, but it
// is also a lot easier to sort it exactly as you'd like.
// Note that I don't use prepared statements here, as there is no user-input.
$query = <<<outSQL
SELECT {$Fields} FROM `unit` AS u
INNER JOIN `employee` AS e ON e.employee_id = u.unit_id
INNER JOIN `employee` AS s ON s.employee_id = u.supervisor_id
ORDER BY e.`employee_id`
outSQL;
$data = $db->query($query);
// Creating a printf() template for the output, to make the code easier to maintain.
$rowTemplate = <<<outHTML
<tr>
<td>%1\$d</td>
<td>%2\$s</td>
<td>%3\$s</td>
</tr>
outHTML;
// Generate the table template, using placeholders for where the data will be added..
$tableTemplate = <<<outHTML
<table>
<thead>
<tr>
<th>ID</th>
<th>First name</th>
<th>Last name</th>
</tr>
</thead>
<tbody>
%s
</tbody>
</table>
outHTML;
// Regular table output, one employee per line.
$temp = '';
foreach ($data as $e) {
// hs() is a shortcut function to htmlspecialchars (), to prevent against XSS.
$temp .= sprintf($rowTemplate, $e['employee_id'], hs($e['first_name']), hs($e['lastname']));
}
// Add the rows to the table, so that you can echo the completed product wherever you need.
$employeeTable = sprintf($tableTemplate, $temp);
If you want to do it one per column, it becomes a bit more intricate. Though, still a bit easier than your first attempt. :)
Namely, something like this:
<?php
$db = new PDO();
// Defining the fields we need here, to avoid having too long a string for the query.
$fields = "employee_id, first_name, lastname";
// Do the sorting in the database itself. Not only is this faster, but it
// is also a lot easier to sort it exactly as you'd like.
// Note that I don't use prepared statements here, as there is no user-input.
$data = $db->query("SELECT {$Fields} FROM `employees` ORDER BY `employee_id`");
// We need to know how many columns we'll have. One per employee.
$columns = count ($data);
// Rows have a header in front of each line, and one td tag for each employee.
$rowTemplate = "\t\t<th>%s</th>\n".str_repeat("\t\t\t<td>%s</td>\n", $columns);
// Generate the table template, using placeholders for where the data will be added..
$tableTemplate = <<<outHTML
<table>
<tbody>
%s
</tbody>
</table>
outHTML;
// Reformat the array to give us the data per-column.
$temp = array ();
foreach ($data as $field => $e) {
// Since we've already sorted the data in the database we don't need to do any further sorting here.
// Also note that I'm doing the escaping here, seeing as this array will only be used for output.
$temp['Employee ID'][] = intval($e['employee_id']);
$temp['First name'][] = hs($e['first_name']);
$temp['Last name'][] = hs($e['lastname']);
}
// Now we do the same as in the above example.
$rows = '';
foreach ($temp as $label => $l) {
// We have the label as the first template variable to be added, so put it as the first element.
array_unshift($l, $label);
// Add the current row of items to the output, using the previously established template.
$rows = vprintf($rowTemplate, $l);
}
// Add the rows to the table, so that you can echo the completed product wherever you need.
$employeeTable = sprintf($tableTemplate, $temp);
PS: Haven't tested the code, but it should work.
I ran into his problem and after much angst found a really nice solution in the notes on the php manual page - I now have the following function which i use whenever I need to solve this type of problem.
function fnArrayOrderby(){
//function to sort a database type array of rows by the values in one or more column
//source http://php.net/manual/en/function.array-multisort.php - user notes
//example of use -> $sorted = fnArrayOrderby($data, 'volume', SORT_DESC, 'edition', SORT_ASC);
$args = func_get_args(); //Gets an array of the function's argument list (which can vary in length)
//echo "sorting ".$args[0]."<br>";
if (!isset($args[0])) { return;}
$data = array_shift($args); //Shift an element off the beginning of array
foreach ($args as $n => $field) {
if (is_string($field)) {
$tmp = array();
foreach ($data as $key => $row)
$tmp[$key] = $row[$field];
$args[$n] = $tmp;
}
}
$args[] = &$data;
call_user_func_array('array_multisort', $args);
return array_pop($args);
}

Split query into multiple arrays based on column name

I want to run a query that gets all the data from a database then have the data split into arrays for each column. With this I intend to dynamically populate html. I am not very experienced with php and could use some assistance with how to put my query into multiple arrays depending on what column it was in.
Example: For the column name I want an array $itemName[] and it will contain every item name in asc order. Then for the image column I want an array $itemImage[] for every image/image url in the same order.
With this I plan to run a for loop where as x increases it will go through each diff array and pull from the specified location. There are no null values in my DB so I don't need to worry about that.
Any help you can give me with the writing the query into multiple arrays based on the column name is appreciated.
$mPos = array(mPos1, mPos2, mPos3, mPos4);
for (x=0; x<4; x++){
echo "<div class="$mPos[x]"> <div class="$mPos[x] . '_1'">"$title[x]"</div><div class="$mPos1 . '_2'">"$image[x]"</div>
Still doesn't make sense for me to separate it that way, but here you go.
Since you didn't provide a database/table structure, I will assume your db table got the following columns:
itemId | itemName | itemImage | itemDescription
In PHP you loop through the result row for row and populate your arrays like
foreach ( $result AS $row ) {
$itemNames[$row->itemId] = $row->itemName;
$itemImages[$row->itemId] = $row->itemImage;
$itemDescriptions[$row->itemId] = $row->itemDescription;
}
EDIT: After question was updated and now includes the HTML output, I'd suggest something like this.
foreach ( $result AS $row ) {
$items[$row->itemId] = array(
'name' => $row->itemName,
'image' => $row->itemImage,
'description' => $row->itemDescription,
'price' => $row->itemPrice,
'link' => $row->itemLink,
);
}
$x = 0;
while ($x<4) {
$x++;
$item = array_shift($items);
echo '<div class="mPos'.$x.'">
<div class="mPos'.$x.'_1">"'.$item['name'].'"</div>
<div class="mPos'.$x.'_2">"'.$item['price'].'"</div>
<div class="mPos'.$x.'_3"><a href="'.$item['link'].'">
<img src="'.$item['image'].'" /></a>
</div>
</div>';
}
$sth = $dbh->prepare("SELECT itemName, itemImage FROM myTable");
$sth->execute();
$result = $sth->fetchAll();
$myArr = array();
foreach($result as $row){
foreach($row as $colName => $colVal){
$myArr[$colName][] => $colVal;
}
}
echo '<pre>';
print_r($myArr);
echo '</pre>';
Although I do have misgivings about how you're actually approaching this from a design perspective.

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