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php tutorial basic

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PHP Tutorial for (Record Insertion retrieval deletion and updating) In this tutorial u will learn following things How to create a form using html and CSS How to crate database in phpmyadmin How to insert record in database How to show record on webpage from database How to delete record from database How to edit and update record in database Note : Create a folder in Xamp/ htdocs/ Save all files in the folder. Save CSS file in same folder.

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Php tutorials for beginners

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Page 1: PHP Tutorial basic

PHP Tutorial for (Record Insertion retrieval deletion and updating) In this tutorial u will learn following things

How to create a form using html and CSS How to crate database in phpmyadmin How to insert record in database How to show record on webpage from database How to delete record from database How to edit and update record in database

Note :

Create a folder in Xamp/ htdocs/ Save all files in the folder. Save CSS file in same folder.

Page 2: PHP Tutorial basic

How to create a form using html and CSS

First of all you need a tool to work on Like notepad, notepad ++

I created a simple form using html and external CSS. To attach css in html use following code in the head tag

<link rel="stylesheet" href="style.css" type="text/css" />

Html code for form <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title></title><link rel="stylesheet" href="style.css" type="text/css" />

</head><body><div id="header">

<div id="left"> <label>Register Customer</label> </div>

Page 3: PHP Tutorial basic

<div id="right">

</div></div><center><div id="login-form"><form method="post"action ="submit.php"><table align="center" width="35%" border="0"><tr><td><input type="text" name="customer_name" placeholder="customer Name" required /></td></tr><tr><td><input type="text" name="contact_name" placeholder="Contact Name" required /></td></tr><tr><td><input type="text" name="city" placeholder="City" required /></td></tr><tr><td><input type="text" name="country" placeholder="Country" required /></td></tr><tr><td> <button><input type="submit" name="submit" value ="Enter Record"></button></td></tr></table></form></div></center></body></html>

Save this file with register.php

Page 4: PHP Tutorial basic

How to create database in phpmyadmin

To create data base you need to have XAMP

Download XAMP from https://www.apachefriends.org/index.html Install it Open XAMP

Start apache Start MySQL Goto LocalHost/phpmyadmin Create database with name (raeesdb) here

Goto database and create table with name (customer) Following are the fields of database

i) customer_id datatype INT size (10) auto increment primary keyii) customer_name datatype varchar size (50)iii) contact_name datatype varchar size (50)iv) city datatype varchar size (50)v) country datatype varchar size (50)

https://www.apachefriends.org/index.html
Page 5: PHP Tutorial basic

Once data base is create now need to connect to the database For connecting with database you need to write the following PHP code

<?php$mysql_hostname = "localhost";$mysql_user = "root";$mysql_password = "";$mysql_database = "raeesdb";$con = mysqli_connect($mysql_hostname, $mysql_user,

$mysql_password) or die("Could not connect database");if ($con==true ){//echo "true con";mysqli_select_db( $con,$mysql_database) or die("Could not select

database");}else{ echo "abc";}

?>Save this file with dbconnection.php

Page 6: PHP Tutorial basic

How to insert record in database

Code for record insertion in the database

<!-- insertion of data into database--><?php include("dbconnection.php");

if($_POST['submit']){

$customer_name=$_POST['customer_name']; $contact_name=$_POST['contact_name']; $city=$_POST['city']; $country=$_POST['country'];if ($con==true ){//echo "true con";mysqli_select_db( $con,$mysql_database) or die("Could not select database");}else{ echo "abc";}mysqli_query($con,"INSERT INTO customer(customer_name, contact_name,

city, country )VALUES('$customer_name','$contact_name','$city','$country')");header("location: show.php");

mysqli_close($con);}

?>

Save this file with submit.php

How to show record on webpage from database

Code to show the record from database on webpage

<!--Retrieval of data from Database and showing it on webpage -->

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

Page 7: PHP Tutorial basic

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title></title>

<link rel="stylesheet" href="style.css" type="text/css" />

</head>

<body>

<?php

include("dbconnection.php");

$selectSQL = 'SELECT * FROM customer';

if( !( $selectRes = mysqli_query($con, $selectSQL) ) ){

echo 'Retrieval of data from Database Failed - #'.mysql_errno().': '.mysql_error();

}else{}

if( mysqli_num_rows( $selectRes )==0 ){

// echo '<tr><td colspan="4">No Rows Returned</td></tr>';

}else{

}

mysqli_close($con);

?>

<div id="header">

<div id="left">

<label>View Customer Detail</label>

</div>

<div id="right">

</div>

</div>

Page 8: PHP Tutorial basic

<table align="center" width="75%" border="1">

<thead>

<tr>

<th>Customer ID</th>

<th>Customer Name</th>

<th>Contact Name</th>

<th>City</th>

<th>Country</th>

<th> Delete user<th>

</tr><?php

while( $row = mysqli_fetch_array( $selectRes ) ){

?>

<tr>

<td><?php echo $row['customer_id']; ?></td></td>

<td><?php echo $row['customer_name']; ?></td>

<td><?php echo $row['contact_name'];?></td>

<td><?php echo $row['city']; ?></td>

<td><?php echo $row['country'];?></td>

<td><a href='delete.php?cusid=<?php echo $row["customer_id"]; ?>'>Delete</a></td>

<td><a href='edit.php?cusid=<?php echo $row["customer_id"]; ?>'>Edit</a></td>

</tr>

<?php } ?>

</thead>

<tbody>

</tbody>

Page 9: PHP Tutorial basic

</table>

</body>

</html>

Your record will be look like this

Note: in this table record is already added

Save this file with name show.php

Page 10: PHP Tutorial basic

How to delete record from database

Code for record deletion from database<!-- Deletion of data from database--><?php

include("dbconnection.php");$id= $_GET['cusid'];$query="DELETE FROM customer WHERE customer_id='$id' ";$exequery=mysqli_query($con,$query);if($exequery){

header("location: show.php"); }mysqli_close($con);?>

Add delete link on show.php page <td><a href='delete.php?cusid=<?php echo $row["customer_id"]; ?>'>Delete</a></td>

Save this file with name delete.php

Page 11: PHP Tutorial basic

How to edit and update record in database

To edit and update record you need to create new page where data will be displayed First you need to create page with 5 fields containing

(1) customer id (type hidden) (2) customer name(3) contact name(4) city(5) country

complete code for fetching record from database and show it in text boxes <?phpinclude("dbconnection.php");if(isset($_GET['cusid']) && $_GET['cusid'] !=""){$id = $_GET['cusid'];$q = "SELECT * FROM customer WHERE customer_id= '$id'";$r= mysqli_query($con,$q);$user= mysqli_fetch_assoc($r);}mysqli_close($con);?><!-- Form for updating the record--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title></title><link rel="stylesheet" href="style.css" type="text/css" /></head><body><div id="header">

<div id="left"> <label>Register Customer</label> </div> <div id="right"> </div></div><center><div id="login-form"><form method="POST" name = "update record" action ="update.php">

Page 12: PHP Tutorial basic

<table align="center" width="35%" border="0"> <tr> <td> <input type="hidden" name="customer_id" value ="<?php echo $id ?>"> </tr><tr><td><input type="text" name="customer_name" value ="<?php echo $user['customer_name'] ?>"/></td></tr><tr><td><input type="text" name="contact_name" value ="<?php echo $user['contact_name'] ?>"/></td></tr><tr><td><input type="text" name="city" value ="<?php echo $user['city'] ?>"></td></tr><tr><td><input type="text" name="country" value ="<?php echo $user['country'] ?>"/></td></tr><tr><td><input id="button" type="submit" name="submit" value ="Update Record"></td></tr></table></form></div></center></body></html>

Add edit link on show.php page <td><a href='delete.php?cusid=<?php echo $row["customer_id"]; ?>'>Delete</a></td>

Page 13: PHP Tutorial basic

Save this file with name edit.php

Now need to update the record in the database

Complete code for updating record in database

<?php

include("dbconnection.php");

$id= $_POST['customer_id'];

$customer_name=$_POST['customer_name'];

$contact_name=$_POST['contact_name'];

$city=$_POST['city'];

$country=$_POST['country'];

$query= "UPDATE customer SET customer_name= '$customer_name', contact_name='$contact_name', city='$city', country='$country' WHERE customer_id='$id'";

$exequery=mysqli_query($con,$query);

if($exequery)

{

header("location: show.php");;

}

mysqli_close($con);

?>

Page 14: PHP Tutorial basic

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