Echo different values in the same column in the same table - php

Question

I'm trying to display the values from two different rows into two columns in a single row but I can't figure out how to retrieve the data.
This is what I tried:
SELECT wp_posts.*, wp_postmeta.*
FROM wp_posts
LEFT JOIN wp_postmeta
ON wp_posts.ID = wp_postmeta.post_id
WHERE wp_posts.post_type='product' AND wp_postmeta.meta_key='_sale_price'
OR wp_postmeta.meta_key='_stock'
ORDER BY wp_posts.ID
I display the data like this:
foreach($sth as $row)
{
?>
<tr>
<td><?php echo $row["ID"]; ?></td>
<td><?php echo $row["post_title"]; ?></td>
<td><?php echo $row["meta_value"]; ?></td>
<td><?php echo $row["meta_value"]; ?></td>
</tr>
I'm getting this:
While I'd like to get this:
I'm not sure whether I should post this in the PHP, WP or SQL category.

Answer 1

use this code:
only replace your tables with this example
$sql = "SELECT Customers.CustomerName, Orders.OrderID
FROM Customers
LEFT JOIN Orders
ON Customers.CustomerID=Orders.CustomerID
ORDER BY Customers.CustomerName";
$result = mysqli_query($con, $sql);
while ($row = mysqli_fetch_assoc($result)) {
<tr>
<td><?php echo $row["ID"]; ?></td>
<td><?php echo $row["post_title"]; ?></td>
<td><?php echo $row["meta_value"]; ?></td>
<td><?php echo $row["meta_value"]; ?></td>
</tr>
///your code here
}

Answer 2

It seems that your fetch results are coupled, so I'd suggest that you print the fetch results in the rule below:
/* Print this when $row is in odd number */
<tr>
<td><?php echo $row["ID"]; ?></td>
<td><?php echo $row["post_title"]; ?></td>
<td><?php echo $row["meta_value"]; ?></td>
/* Print this when $row is in even number */
<td><?php echo $row["meta_value"]; ?></td>
</tr>
In the end, according to the sample data you provide above, you will find that the 1st foreach it prints
"#" = '285'
"Nom" = 'Bouquet Opalin'
"Prix HT" = '25'
2nd foreach it prints:
"Stock" = '9'
I did the example for you, click the link below.
For your reference
/* added at 2018-04-26 */
<?php
/* include your dbconfig */
include_once('../sit/dbConfig.php');
$dbConfig = new dbConfig();
$query = array();
$query[0] = "SELECT * FROM wp_posts WHERE 1;";
$column = " ID, post_title, meta_value ";
$table = " wp_posts ";
$arr = array();
$arr = $dbConfig->sqlSelect1($column, $table);
echo "<pre>";
echo "1) Print raw array data which get from DB" . "<br><br>";
print_r( $arr );
echo "</pre>";
echo "<br><br>";
?>
<?php
echo "<pre>";
echo "2) Print in table format" . "<br><br>";
echo "<table border='1' width=device-width >";
echo "<tr>";
echo "<td>#</td>";
echo "<td>Nom</td>";
echo "<td>Prix HT</td>";
echo "<td>Stock</td>";
echo "</tr>";
/* Print this when $row is in even number */
foreach ($arr as $row => $key) {
if ($row % 2 == 0) {
echo "<tr> <td>";
echo $key["ID"];
echo "</td> <td>";
echo $key["post_title"];
echo "</td> <td>";
echo $key["meta_value"];
echo "</td>";
}
/* Print this when $row is in odd number */
if ($row % 2 == 1) {
echo "<td>";
echo $key["meta_value"];
echo "</td> <tr>";
}
}
echo "</table>";
echo "</pre>";
?>