CRUD Operation In PHP
WebSolutionStuff | Jul-20-2020 | Categories : PHP MySQL HTML
Hello All,
In this tutorial i will show you how to create CRUD operation with login-logout in php.So if you are newcomer in devloping or fresher in web developing then this post definitely help you to learn how to create login-logout with insert, update, delete data using mysql in database.
So,let's start and follow my steps as discribed in below and get output.
Step 1 : Create Folder And Add New File
So, basically if you are not aware about php then you need to check it in internet for basic requirements of php language, We need xampp/wamp server for run php script and mysql database and i had already installed So,here i will directly create new folder and set name as crud_php in xampp folder and after that i have added one file witn name like cofig.php.
After that you need to add below code in config.php file
<?php
$con = mysqli_connect("localhost", "root", "")
or
die("Couldn't connect to database");
$select = mysqli_select_db($con,"demo")
or
die("Database not found");
?>
In this file i have code for database connection with mysql and we are creating demo database for our example.
Step 2 : Create Signup Page
We need to add entry in database using signup page.So, we need to add 2 pages for signup first one for connection or sql query(action page) and second for view, i have added code as below.
1) signup 1.php
<?php
include_once 'config.php';
$username = $_POST['username'];
$password = $_POST['password'];
$email = $_POST['email'];
$department = $_POST['department'];
$query = "insert into register values(NULL,'$username','$password','$email','$department')";
$result = mysqli_query($con,$query);
if($result)
{
header("location: login.php");
}
?>2) signup.php
<html>
<head>
<title>Sign up</title>
<style>
body{
background-image:url("6.jpg");
background-size:cover;
background-repeat:no-repeat;
}
.division{
background: white;
opacity:0.9;
border: 0 none;
border-radius: 3px;
box-shadow: 0 0 15px 1px rgba(0, 0, 0, 0.4);
padding: 20px 30px;
box-sizing: border-box;
width: 30%;
margin: 7% 20% 0% 33%;
display:block;
position: relative;
}
input{
padding: 15px;
border: 1px solid #ccc;
border-radius: 3px;
margin-bottom: 10px;
width: 100%;
box-sizing: border-box;
font-family: montserrat;
color: #2C3E50;
font-size: 20px;
}
.more{
font-size:30px;
font-style:solid;
font-family:Arial;
background-color:#00ff99;
}
</style>
</head>
<body>
<div class="division">
<form name="reg" action="signup1.php" method="post">
<table cellpadding="5" align="center">
<tr>
<td><input type="text" name="username" placeholder="User Name" required/></td>
</tr>
<tr>
<td><input type="password" name="password" placeholder="Password" required/></td>
</tr>
<tr>
<td><input type="email" name="email" placeholder="Email" required/></td>
</tr>
<tr>
<td><input type="text" name="department" placeholder="Department" required/></td>
</tr>
<tr>
<td><input class="more" type="submit" value="submit"></td>
</tr>
</table>
<center><a href="login.php">Log in</a></center>
</form>
</div>
</body>
</html>
Step 3 : Create Login Page
Now we are creating login page So, i have added 2 diffrent pages 1st page for action and 2nd for display.
1) login 1.php
<?php
include_once 'config.php';
$username = $_REQUEST['username'];
$password = $_REQUEST['password'];
$_session["uname"]=$username;
$query="select * from register where username='$username' and password='$password'";
$result=mysqli_query($con,$query);
$num=mysqli_num_rows($result);
if($num >= 1)
{
header("location:display.php?username=$username");
}
else
{
echo '<script type="text/javascript">alert("Enter valid username and password"); window.location = "login.php";</script>';
}
?>
2) login.php
<html>
<head>
<title>Log in</title>
<style>
body{
background-image:url("6.jpg");
background-size:cover;
background-repeat:no-repeat;
}
.division{
background: white;
opacity:0.9;
border: 0 none;
border-radius: 3px;
box-shadow: 0 0 15px 1px rgba(0, 0, 0, 0.4);
padding: 20px 30px;
box-sizing: border-box;
width: 30%;
margin: 10% 20% 0% 33%;
display:block;
position: relative;
}
input{
padding: 15px;
border: 1px solid #ccc;
border-radius: 3px;
margin-bottom: 10px;
width: 100%;
box-sizing: border-box;
font-family: montserrat;
color: #2C3E50;
font-size: 20px;
}
.more{
font-size:30px;
font-style:solid;
font-family:Arial;
background-color:#00ff99;
}
</style>
</head>
<body>
<div class="division">
<form name="reg" action="login1.php" method="post">
<table cellpadding="5" align="center">
<tr>
<td><input type="text" name="username" placeholder="User Name" required/></td>
</tr>
<tr>
<td><input type="password" name="password" placeholder="Password" required/></td>
</tr>
<tr>
<td><input type="submit" class="more" value="log in" ></td>
</tr>
</table>
<center><a href="signup.php">Sign up</a></center>
</form>
</div>
</body>
</html>
And you will get output like below screen print.
Step 4 : Create View Page
Now, We need to create display page to view our inserted records in database so i have created display.php page for same.
<?php
include 'config.php';
session_start();
if(isset($_REQUEST['username'])){
$username=$_REQUEST['username'];
$_SESSION['uname']=$username;
}
?>
<html>
<head>
<title>display</title>
<style>
body{
background-image:url("6.jpg");
background-size:cover;
background-repeat:no-repeat;
}
.division{
background: white;
opacity:0.9;
border: 0 none;
border-radius: 3px;
box-shadow: 0 0 15px 1px rgba(0, 0, 0, 0.4);
padding: 20px 30px;
box-sizing: border-box;
width: 55%;
margin: 10% 20% 0% 20%;
display:block;
position: relative;
}
input,th{
padding: 15px;
border: 1px solid #000;
width: 100%;
box-sizing: border-box;
font-family: montserrat;
color: #fff;
text-size: 20px;
background-color:#337ab7;
}
.done{
font-size:auto;
font-style:solid;
font-family:Arial;
background-color:#449d44;
margin-top: 10px;
}
</style>
</head>
<body>
<div class="division">
<table cellpadding="5" border="1px black solid">
<tr>
<th>Name</th>
<th>Email</th>
<th>Department</th>
<th colspan="2">Action</th>
</tr>
<?php
$query="select * from register";
$result=mysqli_query($con,$query);
echo "Welcome ";
echo $_SESSION['uname'];
while($db=mysqli_fetch_array($result))
{ ?>
<tr>
<td><?php echo $db['username']?></td>
<td><?php echo $db['email']?></td>
<td><?php echo $db['department']?></td>
<td><a href="update.php?update=<?php echo $db['id'];?>"><input type="submit" style="color: #fff;background-color: #337ab7;border-color: #2e6da4;" value="Update"/></a></td>
<td><a href="delete.php?delete=<?php echo $db['id'];?>"><input type="submit" style="color: #fff;background-color: red;" value="Delete"/></a></td>
</tr>
<?php
}
?>
</table>
<td><a href="logout.php" ><input type="submit" name="logout" class="done" value="Log out" ></a></td>
</div>
</body>
</html>
And you will get output like below screen print.
Step 5 : Create Page for Update Records
Now if you want to update or edit your records then you need to create 2 diffrent php page 1st for action of updations and second for view. So i have added both php page code as below.
1) update 1.php
<?php
include_once 'config.php';
session_start();
$id=$_POST['id'];
$username= $_POST['username'];
$password = $_POST['password'];
$email = $_POST['email'];
$department = $_POST['department'];
$query = "UPDATE register SET username='$username',password='$password', email='$email', department='$department' WHERE id='$id'";
$result = mysqli_query($con,$query);
if ($result) {
header("location: display.php");
}
?>
2) update.php
<?php
include_once 'config.php';
session_start();
$id = $_REQUEST['update'];
$query = "SELECT * FROM register WHERE id='$id';";
$result = mysqli_query($con,$query);
$row = mysqli_fetch_assoc($result);
?>
<html>
<head>
<title>Update student</title>
<style>
body{
background-image:url("6.jpg");
background-size:cover;
background-repeat:no-repeat;
}
.division{
background: white;
opacity:0.9;
border: 0 none;
border-radius: 3px;
box-shadow: 0 0 15px 1px rgba(0, 0, 0, 0.4);
padding: 20px 30px;
box-sizing: border-box;
width: 30%;
margin: 7% 20% 0% 33%;
display:block;
position: relative;
}
input{
padding: 15px;
border: 1px solid #ccc;
border-radius: 3px;
margin-bottom: 10px;
width: 100%;
box-sizing: border-box;
font-family: montserrat;
color: #2C3E50;
font-size: 20px;
}
.more{
font-size:30px;
font-style:solid;
font-family:Arial;
background-color:#00ff99;
}
</style>
</head>
<body>
<div class="division">
<h1>Update Student</h1>
<form action="update1.php" method="POST">
<input type="hidden" name="id" value="<?php echo $row['id'];?>">
UserName: <input type="text" name="username" size="30" value="<?php echo $row['username'];?>">
<br>
Password: <input type="text" name="password" size="30" value="<?php echo $row['password'];?>">
<br>
email id <input type="text" name="email" size="30" value="<?php echo $row['email'];?>">
<br>
Department <input type="text" name="department" size="30" value="<?php echo $row['department'];?>">
<br>
<input type="submit" class="more" name="submit" value="Update Student">
</form>
</div>
</body>
</html>
And we can see output like below screenshot.
Step 6 : Delete Records
Now if you want to delete records then you need to required below code. Add this code in your file and save as delete.php
<?php
include_once 'config.php';
$id = $_REQUEST[delete];
$query = "delete from register where id='$id' ";
$result = mysqli_query($con,$query);
if($result)
{
header("location: display.php");
}
?>
Step 7 : Logout page
Now, add below code for logout from current session.
<?php
session_start();
session_destroy();
include 'config.php';
header("location: login.php");
?>
So, our tutorial is ending here, I Hope you will fully understood it. you will get output like added screenshot if you follow proper steps.
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