带有内容分组的PHP动态表

Question

What I am trying to do

I have an array which looks like this -

Array
(
[0] => Array
    (
        [id] => 1
        [date] => 23-09-2015
        [name] => Public Transport
        [group_id] => 1
    )

[1] => Array
    (
        [id] => 2
        [date] => 23-09-2015
        [name] => Parking
        [group_id] => 1
    )

[2] => Array
    (
        [id] => 4
        [date] => 23-09-2015
        [name] => Food
        [group_id] => 2
    )

[3] => Array
    (
        [id] => 3
        [date] => 23-09-2015
        [name] => Fix
        [group_id] => 3
    )

[4] => Array
    (
        [id] => 4
        [date] => 23-09-2015
        [name] => Entertainment
        [group_id] => 3
    )

)

I want to list it in table with grouping done according to the group id

The group has Transportation [1], Accommodation [2] and Allowance [3]. [4] is ungrouped.

The table structure need to look as shown below.

  ID| Date     | Name             |
  ---------------------------------
  ---------------------------------
  1 |23-09-2015|Public Transport
  2 |23-09-2015|Parking
  ---------------------------------
          TRANSPORTATION
  ---------------------------------
  3 |23-09-2015|Food
  ---------------------------------
          ACCOMMODATION
  ---------------------------------
  4 |23-09-2015|Fix
  ---------------------------------
          ALLOWANCE
  ---------------------------------
  5 |23-09-2015|Entertainment

As you can see here id 1 & 2 comes under Transportation, 3 comes under accommodation, 4 comes under allowance and entertainment does not have group. If any group dosenot have data in the array then it should show NO DATA AVAILABLE

  ---------------------------------
  3 |23-09-2015|Food
  ---------------------------------
          ACCOMMODATION
  ---------------------------------
       No data available
  ---------------------------------
          ALLOWANCE
  ---------------------------------

What I tried

     <?php
     $j = 1;
     foreach ($summary as $list) {
        if ($j != $list['group_id']) {

             if ($j == 1) {
                   $group = 'Transportation';
             } else if ($j == 2) {
                    $group = 'Accomodation';
              } else if ($j == 3) {
                    $group = 'Allowances';
              } else {
                    $group = '';
              }
          ?>

                        <tr class="summary-title">
                            <td colspan="7"><?php echo $group; ?></td>
                        </tr>
                    <?php } ?>
      <tr>

           <td><?php echo $list['id']; ?></td>
           <td><?php echo $list['date']; ?></td>
           <td><?php echo $list['name']; ?></td>
      </tr>
        <?php
            $j = $list['group_id'];
        }
        ?>

The array is ordered according with group_id as ascending. Group id will have values 1, 2, 3, 4 always.

Problem with my code

It works partially. But I am unable to show NO DATA AVAILABLE when there's no value in array with the group_id. Also if group_id = 4 is not available in array then it doesnot set ALLOWANCE at the bottom as the array loop finishes before the value is set.

Answer 1

EDIT: Removed the whole page because its getting to chaotic right now.

$summary = array();
$summary[] = array('id'=>1, 'date'=>"23-09-2915", 'name'=>"Public transpor1", 'group_id'=> 1);
$summary[] = array('id'=>2, 'date'=>"24-09-2915", 'name'=>"Public transpor2", 'group_id'=> 3);
$summary[] = array('id'=>3, 'date'=>"25-09-2915", 'name'=>"Public transpor3", 'group_id'=> 1);
$summary[] = array('id'=>4, 'date'=>"26-09-2915", 'name'=>"Public transpor4", 'group_id'=> 2);
$summary[] = array('id'=>5, 'date'=>"27-09-2915", 'name'=>"Public transpor5", 'group_id'=> 1);
$newarray = array('Transportation'=>array(),'Accomodation'=>array(),'Allowances'=>array(),'Not found'=>array());
foreach ($summary as $list) {
    if(isset($list['group_id'])){
         $testid = $list['group_id'];
    }else{
         $testid = 4;
    }
    if ($testid  == 1) {
        $group = 'Transportation';
    } else if ($testid  == 2) {
        $group = 'Accomodation';
    } else if ($testid  == 3) {
        $group = 'Allowances';
    } else {
        $group = 'Not found';
    }
    $newarray[$group][] = $list;
}
echo "<table>";
foreach($newarray as $key => $array){
    echo "<tr><th>".$key."</th></tr>";
    if(count($array) > 0){
        foreach($array as $row){
            echo "<tr><td>".$row['name']."</td></tr>";
        }
    }else{
        echo "<tr><td>Not data</td></tr>";
    }
}
echo "</table>";

This should do what you want now but seriously, put some effort into it lol. I'm not going to continue to edit it until it does what you want if you're so unclear with your questions

Answer 2

Hope this help you. Here a small example.

Dump:

/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET NAMES utf8 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;

CREATE DATABASE IF NOT EXISTS `my` /*!40100 DEFAULT CHARACTER SET utf8 */;
USE `my`;


CREATE TABLE IF NOT EXISTS `category` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  `group_id` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `name` (`name`),
  KEY `FK_category_category_group` (`group_id`),
  CONSTRAINT `FK_category_category_group` FOREIGN KEY (`group_id`) REFERENCES `category_group` (`id`) ON DELETE SET NULL ON UPDATE SET NULL
) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8;

/*!40000 ALTER TABLE `category` DISABLE KEYS */;
INSERT INTO `category` (`id`, `name`, `group_id`) VALUES
    (1, 'Public Transport', 1),
    (2, 'Parking', 1),
    (3, 'Food', 2),
    (4, 'Fix', 3),
    (5, 'Entertainment', 3),
    (6, 'Category without group 1', NULL),
    (7, 'Category without group 2', NULL);
/*!40000 ALTER TABLE `category` ENABLE KEYS */;

CREATE TABLE IF NOT EXISTS `category_group` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `name` (`name`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;

/*!40000 ALTER TABLE `category_group` DISABLE KEYS */;
INSERT INTO `category_group` (`id`, `name`) VALUES
    (2, 'Accommodation '),
    (3, 'Allowance '),
    (1, 'TRANSPORTATION');
/*!40000 ALTER TABLE `category_group` ENABLE KEYS */;
/*!40101 SET SQL_MODE=IFNULL(@OLD_SQL_MODE, '') */;
/*!40014 SET FOREIGN_KEY_CHECKS=IF(@OLD_FOREIGN_KEY_CHECKS IS NULL, 1, @OLD_FOREIGN_KEY_CHECKS) */;
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;

PHP:

$categoriesByGroups = array();
$pdo = new PDO('mysql:host=localhost;dbname=my', 'root');
$query = $pdo->prepare('
    SELECT c.id AS category_id,
           c.name AS category_name,
           c.group_id,
           g.name AS group_name
      FROM category AS c
      LEFT JOIN category_group AS g ON g.id = c.group_id
');

$query->execute();

while ($row = $query->fetch(PDO::FETCH_ASSOC)) {
    if ($row['group_id'] != null) {
        $groupId = $row['group_id'];
    } else {
        $groupId = 0;
    }

    if (!isset($categoriesByGroups[$groupId])) {
        $categoriesByGroups[$groupId] = array(
            'categories' => array(),
            'group' => $groupId == null ? 'Without group' : $row['group_name']
        );
    }

    $categoriesByGroups[$groupId]['categories'][] = $row['category_name'];
}

foreach ($categoriesByGroups as $group) {
    echo 'Group: ' . $group['group'] . '<br/>';
    echo 'Categories: <br/>';
    foreach ($group['categories'] as $category) {
        echo $category . '<br/>';
    }
    echo '--------------------------------<br/>';
}