How do I fetch a table inside an entry in PHP firebase? - php

Question

After successfully inputting data inside a key, I am now facing the problem of trying to display it.
this is the code that I've been trying and modifying to try and fetch it but to still to no avail
<tr>
<th>Course Code</th>
<th>Discriptive Title</th>
<th>Unit</th>
<th>Pre-Requisite</th>
<th>Grade</th>
</tr>
<?php
include('dbcon.php');
if(isset($_GET['id']))
{
$key_child = $_GET['id'];
$ref_table = 'User'.$key_child.'/Grades/1st Year/1st Sem';
$fetchdata = $database->getReference($ref_table)->getChild($key_child)->getValue();
if($fetchdata > 0)
{
$i = 0;
?>
<input type="hidden" name = "id" value = "<?=$key_child;?>">
<?php
foreach($fetchdata as $key_child => $row)
{
?>
<tr>
<td> <?= $row['Course_Code'];?> </td>
<td> <?= $row['Desc_title'];?> </td>
<td> <?= $row['Unit'];?> </td>
<td> <?= $row['Pre-Req'];?> </td>
<td> <?= $row['Grade'];?> </td>
</td>
</tr>
<?php
}
}
else
{
?>
<td colspan = "5"> Nothing Found </td>
<?php
}
}
else
{
?>
<td colspan = "5"> No Record found </td>
<?php
}
It is displaying the "Nothing Found" when I execute it even though there are data in the database.
And this is the code that I initially tried for some context.
<tr>
<th>Course Code</th>
<th>Discriptive Title</th>
<th>Unit</th>
<th>Pre-Requisite</th>
<th>Grade</th>
</tr>
$key_child = $_GET['id'];
$ref_table = 'User'.$key_child.'/Grades/1st Year/1st Sem';
$getdata = $database->getReference($ref_table)->getChild($key_child)->getValue();
if($getdata > 0)
{
?>
<input type="hidden" name = "id" value = "<?=$key_child;?>">
<tr>
<td> <?= $row['Course_Code'];?> </td>
<td> <?= $row['Desc_title'];?> </td>
<td> <?= $row['Unit'];?> </td>
<td> <?= $row['Pre-Req'];?> </td>
<td> <?= $row['Grade'];?> </td>
</td>
</tr>

Answer 1

If $key_child is 5nKX..., then you're missing a / after User in this code:
$ref_table = 'User'.$key_child.'/Grades/1st Year/1st Sem'
So to fix that problem:
$ref_table = 'User/'.$key_child.'/Grades/1st Year/1st Sem'
// 👆