grouping datas with same group - php

Question

I'm trying to achieve to group Data by a column named 'groups'. I've been looking this post here Categorizing mysql data into seperate html tables?
This is also applicable in my case but the same groups get separated
This is what it looked like
_____________________________________
|_____________Group ZXY_______________|
| Month | Bet | Win |Payout|
|_______________|_______|______|______|
|Name|Group|Desc| | | |
|_______________|_______|______|______|
|Name|Group|Desc| | | |
|_______________|_______|______|______|
|_____Total_____|_______|______|______|
_____________________________________
|_____________Group ZXY_______________|
| Month | Bet | Win |Payout|
|_______________|_______|______|______|
|Name|Group|Desc| | | |
|_______________|_______|______|______|
|Name|Group|Desc| | | |
|_______________|_______|______|______|
|_____Total_____|_______|______|______|
As you can see the data returned are having the same group but got separated. Must be only using 1 table in this case
Summary of my idea
Group loop
add
<table><th>..</th></table>
tags inside the variable
Data fetch loop
add
<tr><td>..</td></tr>
tags inside the variable
Here's the code
$sql='SELECT DISTINCT `groups` FROM `kiosk_data` WHERE `groups` IS NOT NULL ORDER BY `groups` ASC';
$grpData='';
$grpHr[]=array();
//this is the code I used to fill im th contents of the dropdown box
$result = $conn->query($sql);
while ($row = $result->fetch(PDO::FETCH_ASSOC))
{
if(!empty($row['groups']))
{
$selected = (isset($_GET['grp']) && $_GET['grp']==$row['groups'])?'selected="selected"':'';
$grpData.='<option value="'.$row['groups'].'"'.$selected.'>'.$row['groups'].'</option>';
$grpHr[]=$row['groups'];//took this opportunity to store the values of groups in grpHr[] Array
}
}
$sql = "SELECT COALESCE(kd.`kiosk_name`,'Total') AS 'Kiosk',
FORMAT(SUM(`casino_bets`),2) AS 'CBTotal', FORMAT(SUM(`bet_win`),2) AS 'BWTotal'
,FORMAT((`casino_bets`-`bet_win`)/`casino_bets`*100,2) AS 'Payout', groups FROM
`kiosk_data` kd LEFT JOIN `kiosk_status` ks ON kd.`kiosk_id`=ks.`kiosk_id` WHERE
`kiosk_name` IS NOT NULL AND `casino_bets` IS NOT NULL AND `bet_win` IS NOT NULL";
$result = $conn->prepare($sql);
$result ->execute();
foreach ($grpHr as $key => $value) {//iterate til the last group name
$key = $row['groups'];//I think I need to do this before entering the fetch loop
echo '<table><tr><td colspan="6">'.$row['groups'].'</td></tr><tr><th colspan="3">'.date("m",strtotime($row['date'])).'Month</th><th>Bet</th><th>Bet-Win</th><th>Payout %</th></tr>';
while ($row = $result->fetch(PDO::FETCH_ASSOC))
{
echo '<tr><td>'.$row['Kiosk'].'</td><td>'.$row['groups'].'</td><td>'.$row['city'].'</td><td>'.$row['CBTotal'].'</td><td>'.$row['BWTotal'].'</td><td>'.$row['Payout'].'</td></tr>';
}
}
Any other possible workaround for something better aside from my idea?

Answer 1

Assuming that your second query retrieves the needed data, please try the following version of your PHP code:
$sql='SELECT DISTINCT `groups` FROM `kiosk_data` WHERE `groups` IS NOT NULL ORDER BY `groups` ASC';
$grpData='';
$grpHr[]=array();
//this is the code I used to fill im th contents of the dropdown box
$result = $conn->query($sql);
while ($row = $result->fetch(PDO::FETCH_ASSOC))
{
if(!empty($row['groups']))
{
$selected = (isset($_GET['grp']) && $_GET['grp']==$row['groups'])?'selected="selected"':'';
$grpData.='<option value="'.$row['groups'].'"'.$selected.'>'.$row['groups'].'</option>';
$grpHr[]=$row['groups'];//took this opportunity to store the values of groups in grpHr[] Array
}
}
$sql = "SELECT COALESCE(kd.`kiosk_name`,'Total') AS 'Kiosk',
FORMAT(SUM(`casino_bets`),2) AS 'CBTotal', FORMAT(SUM(`bet_win`),2) AS 'BWTotal'
,FORMAT((`casino_bets`-`bet_win`)/`casino_bets`*100,2) AS 'Payout', groups FROM
`kiosk_data` kd LEFT JOIN `kiosk_status` ks ON kd.`kiosk_id`=ks.`kiosk_id` WHERE
`kiosk_name` IS NOT NULL AND `casino_bets` IS NOT NULL AND `bet_win` IS NOT NULL";
$result = $conn->prepare($sql);
$result ->execute();
$grpsArr = array();
while ($row = $result->fetch(PDO::FETCH_ASSOC))
{
if( ! isset($grpsArr[$row['groups']])) {
$grpsArr[$row['groups']] = array();
}
$grpsArr[$row['groups']][] = $row;
}
foreach ($grpsArr as $grpName => $grpRowArray) {
echo '<table><tr><th colspan="6">'.$grpName.'</td></tr><tr><th colspan="3">'
.date("m",strtotime($row['date']))
.' Month</th><th>Bet</th><th>Bet-Win</th><th>Payout %</th></tr>';
foreach($grpRowArray as $grpRow) {
echo '<tr><td>'.$grpRow['Kiosk'].'</td><td>'.$grpRow['groups'].'</td><td>'.$grpRow['city'].'</td><td>'.$grpRow['CBTotal'].'</td><td>'.$grpRow['BWTotal'].'</td><td>'.$grpRow['Payout'].'</td></tr>';
}
echo '</table>';
}
What has been changed are the while / foreach loops. Below please find the explanation.
while loop
$grpsArr = array();
while ($row = $result->fetch(PDO::FETCH_ASSOC))
{
if( ! isset($grpsArr[$row['groups']])) {
$grpsArr[$row['groups']] = array();
}
$grpsArr[$row['groups']][] = $row;
}
This loop iterates through all of the rows returned by your last query, putting the data into $grpsArr nested array. The section :
if( ! isset($grpsArr[$row['groups']])) {
$grpsArr[$row['groups']] = array();
}
checks whether there has already been at least one row from the $row['groups'] group throughout the iteration - if there was no such row till now, sub array is created for $row['groups'] group name;
The line:
$grpsArr[$row['groups']][] = $row;
adds current iteration row to the subarray of the group indicated in $row['groups'].
After fetching the last record from the recordset, the $grpsArr array should look like:
grpsArr = array {
"group_1" => array {
array {
"Kiosk" => "KioskVal_1",
"groups" => "group_1",
"city" => "city_1",
"CBTotal" => 123.45
"BWTotal" => ...
"Payout" => ...
} ,
( ......... ) ,
array {
"Kiosk" => "KioskVal_31",
"groups" => "group_1",
"city" => "city_11",
"CBTotal" => 123.45
"BWTotal" => ...
"Payout" => ...
}
}
( .................... ),
"group_m" => array {
array {
"Kiosk" => "KioskVal_m",
"groups" => "group_m",
"city" => "city_m",
"CBTotal" => 123.45
"BWTotal" => ...
"Payout" => ...
} ,
( .................... ) ,
array {
"Kiosk" => "KioskVal_m2",
"groups" => "group_2",
"city" => "city_mm",
"CBTotal" => 123.45
"BWTotal" => ...
"Payout" => ...
}
}
}
foreach loop
foreach ($grpsArr as $grpName => $grpRowArray) {
echo '<table><tr><th colspan="6">'.$grpName.'</td></tr><tr><th colspan="3">'
.date("m",strtotime($row['date']))
.' Month</th><th>Bet</th><th>Bet-Win</th><th>Payout %</th></tr>';
foreach($grpRowArray as $grpRow) {
echo '<tr><td>'.$grpRow['Kiosk'].'</td><td>'.$grpRow['groups'].'</td><td>'.$grpRow['city'].'</td><td>'.$grpRow['CBTotal'].'</td><td>'.$grpRow['BWTotal'].'</td><td>'.$grpRow['Payout'].'</td></tr>';
}
echo '</table>';
}
The main loop foreach ($grpsArr as $grpName => $grpRowArray) iterates through the first level of $grpsArr table, getting the group name of currently processed group and then builds HTML table start tag with header row for this specific group.
Internal loop foreach($grpRowArray as $grpRow) iterates over the array containing rows that belong to the the currently processed group and builds HTML table row from the obtained data.
There is one problem: you used in your code .date("m",strtotime($row['date'])). for writing the proper date/time for the group. However there is no date field in the results of the last query - nevertheless I've put it also in my code.
This approach should give you one HTML table for each of the groups.
I hope it helps you some way.