link not reading underscore and text after it - php

Question

I have made one site which get the name from the database and display values from the data base.
Some of my database values having underscore (_) like abc_xyz.dll
But on get method it return only abc not the whole value abc_xyz.dll (skips the underscore and values after it)
Here is two links one having vales without underscore which works http://windllfiles.com/dlldata/SDACQ32MP.dll
Here is another link which have underscore which is not working
http://windllfiles.com/dlldata/ETA_USB.dll
Here is the code
('include/config.php'); $character = '';
if(isset($_GET["character"])) {
$character = $_GET["character"];
if($character=='09'){
$query = "SELECT * FROM tbl_student WHERE student_name LIKE '0%'
or student_name LIKE '1%'
or student_name LIKE '2%'
or student_name LIKE '3%'
or student_name LIKE '4%'
or student_name LIKE '5%'
or student_name LIKE '6%'
or student_name LIKE '7%'
or student_name LIKE '8%'
or student_name LIKE '9%'
";
}else{
$character = preg_replace('#[^a-z]#i', '', $character);
$query = "SELECT * FROM tbl_student WHERE student_name LIKE '$character%'";
}
} else {
$query = "SELECT * FROM tbl_student ORDER BY RAND () LIMIT 30"; } $result = mysqli_query($connect, $query); ?> <?php
require 'include/header.php';
?>
Get Your DLL
file
<?php
$character = range('A', 'Z');
echo ' <ul class="pagination alphabet_pagination">';
echo '<li>0-9</li>';
foreach($character as $alphabet)
{
echo '<li>'.$alphabet.'</li>';
}
echo '</ul>';
?>
</div>
<table class="table table-bordered">
<tr>
<th width="auto">All DLL Files</th>
</tr>
<?php
if(mysqli_num_rows($result) > 0)
{
while($row = mysqli_fetch_array($result))
{
$name=$row["student_name"]
?>
<tr>
<td><?php echo ''.$name.'';?></td>
</tr>
<?php
}
}
else
{
?>
<tr>
<td colspan="3" align="center">Data not Found</td>
</tr>
<?php
}
?>
</table>
</div>
</div>
<p> <?php include ('include/ads.php'); ?></p> </div></div>
<div class="col-sm-3">
<?php include('include/right.php');?>
Here is the data file where I am using get method
'include/header.php'; $name = $_GET['name']; ?>
class="container-fluid"> Are you missing
File? <div
class="list-group-item list-group-item-action>
Download '.$name.'
File';?>
<?php
$query = "SELECT * FROM tbl_student WHERE student_name='$name'";
$result = mysqli_query($connect, $query);
if(mysqli_num_rows($result) > 0)
{
while($row = mysqli_fetch_array($result))
{
$id=$row["student_phone"]
?>
<li class='list-group-item'><p align="justify"><?php echo $id;?></p></li>
<?php
}
}
?>
<br/> <?php $filename = "file/".$name; $filesize = filesize($filename); $filesize =round($filesize/1024, 2);
echo "File Information:"; echo ""; echo "File
Size:  ".$filesize.''; $md5file =
md5_file($filename); echo "MD5 file
sum:  ".strtoupper($md5file).''; $sha1file =
sha1_file($filename); echo "SHA1 file
sum:  ".strtoupper($sha1file).''; ?> Download '.$name.'
File';?> Dll Missing Error Message: