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select_file.php
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<?php
session_start();
include "user_password.php";
if ((!isset($_SESSION["admin_ps"])) || $_SESSION["admin_ps"] != $user_password) {
unset($_POST);
unset($_FILES);
unset($_SESSION["admin_ps"]);
header("Location: ./login.php");
} else if ((!isset($_SESSION['admin_del'])) || $_SESSION['admin_del'] != "admin") {
// echo "delete is set";
header("Location:./login.php");
} else if (isset($_POST['submit']) && $_POST['submit'] == "back") {
$_SESSION['message'] = "admin";
header("Location: ./upload_file.php");
} else if (isset($_GET['sub']) && isset($_GET['unit'])) {
$_SESSION['sub'] = $_GET['sub'];
$_SESSION['unit'] = $_GET['unit'];
header("Location: ./delete_file.php");
}
echo '<!DOCTYPE html>
<html>
<head>
<title>Select File</title>
<meta name="description" content="Notes of 3rd Semester">
<link rel="shortcut icon" href="favicon.png" type="image/x-icon">
</head>
<style>
body {
/* background-color: white; rgb(234, 230, 241)*/
background: linear-gradient(135deg, rgb(234, 230, 241), rgb(234, 230, 241) 40%, rgb(230, 250, 241)20%, blue);
/* background-color: rgb(66, 42, 42);; */
margin: 0px;
text-align: center;
padding: 0px;
min-height: 130vh;
}
.box {
display: inline-table;
margin: 10px;
box-sizing: border-box;
height: 200px;
width: 25%;
border: 2px solid rgb(0, 8, 14);
/* border-radius: 4px;; */
/* box-shadow: 10px 10px 10px 1px rgb(17, 17, 24); */
background-color: whitesmoke;
}
.box:hover {
border-color: blue;
}
.head {
background-color: blue;
border-bottom: 2px solid black;
color: white;
padding: 20px 0px;
text-align: center;
font-size: 20px;
}
#header {
text-align: center;
}
ol a li {
padding: 4px;
font-size: 15px;
text-align: left;
/* margin:23px; */
}
ol a li:hover {
/* color:blue; */
/* color: rgb(124, 98, 172); */
/* background-color: rgba(255,0,0,1); */
background: linear-gradient(to right, red, red, red, whitesmoke);
color: GREY;
;
width: 90%;
}
hr {
width: 95%;
}
.box a {
color: rgb(49, 49, 105);
font-size: 8px;
}
#admin {
height: 30px;
}
button {
border: 0px solid transparent;
border-radius: 4px;
/* width:40%; */
padding: 8px 40px;
font-weight: 500px;
color: white;
/* margin-bottom:10px; */
background-color: rgb(45, 45, 197);
/* margin-bottom:200px; */
}
form {
margin: 10px;
padding: 30px;
}
button:hover {
background-color: rgb(86, 86, 219);
}
#main_box{
width:1165px;
margin:auto;
}
@media screen and (max-width:1200px) {
#main_box{
width:100%;
margin:auto;
}
@media screen and (max-width:1000px) {
.box {
display: block;
height: unset;
width: 90%;
margin: 50px auto;
}
ol a li {
font-size: 30px;
}
ol {
margin: 70px;
}
button {
width: 90%;
font-size: 20px;
}
form div {
height: 20px;;
}
#admin_but {
padding: 20px;
font-size: 30px;
margin:20px auto ;
width:95%;
}
.head {
font-size: 30px;
}
}
</style>
<body>
<div style="height:40px;background:linear-gradient(to bottom right ,blue ,white);margin:0px;padding:0px ;display:fixed"></div>
<h1 id="header">Select File To Delete </h1>
<hr>
';
echo "<div id='main_box'>";
$flag = 1;
// echo $_GET['sub'] ."and ".$_GET['unit'];
// $conn = new mysqli("localhost", "root", "", "my_db") or die("Not able to connect");
include "password.php";
$sql = "SELECT * FROM topic where topic_name='os' order by unit asc";
$result = $conn->query($sql);
// print_r($result);
if ($result != "" && $result->num_rows > 0) {
$flag = 0;
echo ' <div class="box">
<div class="head">
Operating System
</div><div class="box_content">
<ol>';
while ($row = $result->fetch_assoc()) {
$temp_str = $row['unit'] == "6" ? "PRACTICAL" : "UNIT- " . $row['unit'];
echo '<a href="./select_file.php?sub=' . $row['topic_name'] . '&unit=' . $row['unit'] . '"><li >' . $temp_str . "</li></a>";
}
echo ' </ol> </div> </div>';
}
$sql = "SELECT * FROM topic where topic_name='ds' order by unit asc";
$result = $conn->query($sql);
// print_r($result);
if ($result != "" && $result->num_rows > 0) {
$flag = 0;
echo ' <div class="box">
<div class="head">
Data Structures and Agorithms
</div><div class="box_content">
<ol>';
while ($row = $result->fetch_assoc()) {
$temp_str = $row['unit'] == "6" ? "PRACTICAL" : "UNIT- " . $row['unit'];
echo '<a href="./select_file.php?sub=' . $row['topic_name'] . '&unit=' . $row['unit'] . '"><li >' . $temp_str . "</li> </a>";
}
echo ' </ol> </div> </div>';
}
$sql = "SELECT * FROM topic where topic_name='ppl' order by unit asc";
$result = $conn->query($sql);
// print_r($result);
if ($result != "" && $result->num_rows > 0) {
$flag = 0;
echo ' <div class="box">
<div class="head">
Principles of Programming Languages
</div><div class="box_content">
<ol>';
while ($row = $result->fetch_assoc()) {
$temp_str = $row['unit'] == "6" ? "PRACTICAL" : "UNIT- " . $row['unit'];
echo '<a href="./select_file.php?sub=' . $row['topic_name'] . '&unit=' . $row['unit'] . '"><li >' . $temp_str . "</li> </a>";
}
echo ' </ol> </div> </div>';
}
$sql = "SELECT * FROM topic where topic_name='math' order by unit asc";
$result = $conn->query($sql);
// print_r($result);
if ($result != "" && $result->num_rows > 0) {
$flag = 0;
echo ' <div class="box">
<div class="head">
Mathamatics
</div><div class="box_content">
<ol>';
while ($row = $result->fetch_assoc()) {
$temp_str = $row['unit'] == "6" ? "PRACTICAL" : "UNIT- " . $row['unit'];
echo '<a href="./select_file.php?sub=' . $row['topic_name'] . '&unit=' . $row['unit'] . '"><li >' . $temp_str . "</li> </a>";
}
echo ' </ol> </div> </div>';
}
$sql = "SELECT * FROM topic where topic_name='de' order by unit asc";
$result = $conn->query($sql);
// print_r($result);
if ($result != "" && $result->num_rows > 0) {
$flag = 0;
echo ' <div class="box">
<div class="head">
Digital Electronics
</div><div class="box_content">
<ol>';
while ($row = $result->fetch_assoc()) {
$temp_str = $row['unit'] == "6" ? "PRACTICAL" : "UNIT- " . $row['unit'];
echo '<a href="./select_file.php?sub=' . $row['topic_name'] . '&unit=' . $row['unit'] . '"><li >' . $temp_str . "</li> </a>";
}
echo ' </ol> </div> </div> ';
}
// echo"$flag";
if ($flag) {
echo "<h1> NO RECORDS FOUND </h1>";
}
echo "</div>";
$conn->close();
?>
<hr>
<!-- <div id="admin">Administrator</div> -->
<form action="" method="post" id="admin" id="form_box">
<button type="submit" name="submit" value="back" id="admin_but">Back </button>
<div></div>
</form>
</body>
</html>