update records in mysql database using php
Dear Friends
In this tutorial we will learn how Update Record Using HTML Form in PHP. To implement this program we have to create four files.
1. Connection.php
2. Find.htm
3. Find.php
4. Update.php
Connection.php file contains php code which is used to connect with the Webserver and the databse.
Find.htm file is file contains HTML code for user interface.This user interface a textbox and Find Button.When user enter rollno and click on Find button, it will redirect us on Find.php file.
Find.php file contains HTML code (Three text box and Update Button) as well as PHP code PHP code which is used to display record whose rollno is entered into the Form.When a user make the changes into the form data and pres the Update button it will redirct us to Update.php file.
Update.php file contains the actual code for updation of database.In this file first we have fetch the data from the form and stored into the variable. After that we have created a sql query.The mysqli_query function is used to run update query in PHP. This Function return positive or negative value. Positive value means Quesry Run Successfuly or negative value means error occur in our program.
Now I will show the code of following file:-
1. Connection.php
2. Find.htm
3. Find.php
4. Update.php
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