PHP - How can I print out my database table? - php

Question

I have a php code to print out my table including its column name. The printing has to be dynamic because it has to print different size/length tables based on a user input. :
<table>
<?php
while ($row = mysqli_fetch_array($results)) {
while ($fieldInfo = mysqli_fetch_field($results)) { ?>
<th> <?php echo $fieldInfo->name; ?> </th>
<td> <?php echo $row[$fieldInfo->name] ?> </td>
<?php }
} ?>
</table>
this is the query for $results:
$tName = $_POST["tableNames"]; //this data is recieved from another page
require_once("conn.php");
$sql = "SELECT * FROM $tName";
$results = mysqli_query($conn, $sql)
or die ('Problem with query' . mysqli_error($conn));
my code correctly prints out the table name as well as the first row data but it is not formatted correctly here is how it looks:
additionally. for some reason it only prints out the first row even though im using a while loop.

Answer 1

My advice to you is to prepare two arrays:
First one: containing column names and second: containing data.
When use two foreach to generate first row with header and second one to display data. You have forgot to add <tr> tags to divide rows.

Answer 2

Use
The mysqli_fetch_field() function returns the next column in the result set as an object. It will only returns all column names not the records of table.
You need to use mysqli_fetch_array() for getting all records:
while ($info = mysqli_fetch_array($results,MYSQLI_ASSOC)) {
{
echo $info['rid'];
echo $info['level'];
....
}

Answer 3

I ended up with using a taras' suggestion of storing the column names in an array:
<table>
<?php
while ($fieldInfo = mysqli_fetch_field($results)) { ?>
<th> <?php echo $fieldInfo->name; ?> </th>
<?php
$colNames[] = $fieldInfo->name;
?>
<?php }
while ($row = mysqli_fetch_array($results)) { ?>
<tr>
<?php for ($i=0; $i<sizeof($colNames); $i++) { ?>
<td><?php echo $row[$colNames[$i]] ?>
<?php } ?>
</tr>
<?php } ?>
</table>

Answer 4

As of my understand, do you want to display all table and their columns?
So you can format like below
$sql = "SHOW TABLES FROM dbname";
$result_tables = mysqli_query($link, $sql);
echo "<table border=1>";
echo "<tr><td>Table name</td><td>Fields name</td></tr>";
while($row = mysqli_fetch_array($result_tables)) {
echo "<tr>";
echo "<td>".$row[0]."</td>";
$sql2 = "SHOW COLUMNS FROM ".$row[0];\\row[0] is used to get table name
$result_fields = mysqli_query($link, $sql2);
echo "<td>";
while($row2 = mysqli_fetch_array($result_fields)) {
echo $row2['Field'].',';
}
echo "</td>";
echo "</tr>";
}