Loop into a multidimensional array and built a table with rowspan - php

Question

I have this array:
Array
(
[France] => Array
(
[0] => Array
(
[city] => Paris
)
)
[Canada] => Array
(
[0] => Array
(
[city] => Montreal
)
[1] => Array
(
[city] => Ottawa
)
)
)
Sometimes, like you can see a country can have one city (case for France) but sometimes the country can have more than one city (case for Canada).
I'm looking to have this final output:
<table>
<thead>
<tr>
<th>Country</th>
<th>Cities</th>
</tr>
</thead>
<tbody>
<tr>
<td rowspan="1">France</td>
<td>Paris</td>
</tr>
<tr>
<td rowspan="2">Canada</td>
<td>Montreal</td>
</tr>
<tr>
<td>Toronto</td>
</tr>
</tbody>
</table>
Here's what I have actually:
foreach($countries as $country => $city) {
$count = count($country) ;
if($count == 1) {
echo '
<tr>
<td rowspan="1">'.$country.'</td>
<td>'.$city.'</td>
</tr>
'
}
else {
echo '
<tr>
<td rowspan="'.$count.'">'.$country.'</td>
<td>'.$city.'</td>
</tr>
<tr>
<td>'.$city.'</td>
</tr>
'
}
}
My problem is the loop and how to print the cities.
Thanks for any help.

Answer 1

Because you are creating a row for each city, you must loop over each city. Determining the rowspan value and whether to show the first city on the same row is simply based upon whether its the first iteration of the country's cities.
So the following code will produce your desired result:
<?php
$array = [
'France' => [
[
'city' => 'Paris'
]
],
'Canada' => [
[
'city' => 'Montreal'
], [
'city' => 'Ottawa'
],
],
];
?>
<table>
<thead>
<tr>
<th>Country</th>
<th>Cities</th>
</tr>
</thead>
<tbody>
<?php foreach ($array as $country => $city): ?>
<?php foreach (array_values($city) as $i => $value): ?>
<tr>
<?php if ($i === 0): ?>
<td rowspan="<?= count($city) ?>"><?= $country ?></td>
<?php endif ?>
<td><?= $value['city'] ?></td>
</tr>
<?php endforeach ?>
<?php endforeach ?>
</tbody>
</table>
https://3v4l.org/vp2bl
Result:
<table>
<thead>
<tr>
<th>Country</th>
<th>Cities</th>
</tr>
</thead>
<tbody>
<tr>
<td rowspan="1">France</td>
<td>Paris</td>
</tr>
<tr>
<td rowspan="2">Canada</td>
<td>Montreal</td>
</tr>
<tr>
<td>Ottawa</td>
</tr>
</tbody>
</table>

Answer 2

For rawspan you have to check the count for the city not the count of the country.
You have to use two foreach one to country and one to city.
Below code is written using php7, for array it uses []. if you are using php 5.6 use the array definition as array().
<table>
<thead>
<tr>
<th>Country</th>
<th>Cities</th>
</tr>
</thead>
<tbody>
<?php $array = ['france' => ['paris'], 'canada' => ['montreal', 'ottawa']]; ?>
<?php foreach ($array as $country => $cities) { ?>
<tr>
<td rowspan="<?php echo (count($cities)) ?>"><?php echo $country ?></td>
<?php foreach ($cities as $index => $city) { ?>
<?php if ($index === 0) { ?>
<td><?php echo $city ?> </td></tr>
<?php } else { ?>
<tr>
<td><?php echo $city ?></td>
</tr>
<?php } ?>
<?php } ?>
<?php } ?>
</tbody>
</table>

Answer 3

<thead>
<tr>
<th>Country</th>
<th>Cities</th>
</tr>
</thead>
<tbody>
<?php $array = ['France' => [['city' => 'Paris']], 'Canada' => [['city' => 'Montreal'], ['city' => 'Ottawa']]]; ?>
<?php foreach ($array as $country => $cities) { ?>
<tr>
<td rowspan="<?php echo (count($cities)) ?>"><?php echo $country ?></td>
<?php foreach (array_values($cities) as $index => $value) { ?>
<?php if ($index === 0) { ?>
<td><?php echo $value['city'] ?> </td></tr>
<?php } else { ?>
<tr>
<td><?php echo $value['city'] ?></td>
</tr>
<?php } ?>
<?php } ?>
<?php } ?>
</tbody>

Answer 4

Try this. it should work fine
<?php
$france = array();
$canada = array();
$city1 = array('city'=>'Paris');
$city2 = array('city'=>'Montreal');
$city3 = array('city'=>'Ottawa');
array_push($france,$city1);
array_push($canada,$city2);
array_push($canada,$city3);
$country = array('France'=>$france,'Canada'=>$canada);
<table border="1" cellpadding="5" cellspacing="0">
<thead>
<th>Country </th><th> City </th>
</thead>
<tbody><?php
$flag=0;
foreach($country as $cN=>$city):?>
<tr><td rowspan="<?php echo count($city);?>"> <?php echo $cN;?></td>
<?php
if(count($city)>1)
{
foreach($city as $ckey=>$name):
if($flag)
{
?>
<tr><td> <?php echo $name['city'];?></td></tr><?php
}
else
{?>
<td> <?php echo $name['city'];?></td><?php
}
$flag = 1;
endforeach;
}
else
{
foreach($city as $ckey=>$name):?>
<td> <?php echo $name['city'];?></td><?php
endforeach;
}
?></tr><?php
endforeach;
?></tbody></table>