Oops! It appears that you have disabled your Javascript. In order for you to see this page as it is meant to appear, we ask that you please re-enable your Javascript!

inner join program code in PHP, MySQL

Last modified on January 7th, 2019 at 8:28 am

What is inner join?

Inner join shows results from both tables where there is any match between columns in both tables.

RegistrationNoMarks
T4Tutorials177
T4Tutorials232
T4Tutorials388

Table: Exams

Inner join shows results from both tables where there is any match between columns in both tables.

RegistrationNoFee
T4Tutorials11000
T4Tutorials22000
T4Tutorials33000

Table: Accounts

Now, we have two different tables. If we want to show the record of both tables in one single table then we can use inner join to join both two tables.

Query of an inner join.

SELECT Exams.RegistrationNo, Exams.Marks, Accounts.Fee FROM Exams INNER JOIN Accounts ON Exams.RegistrationNo =  Accounts.RegistrationNo

RegistrationNoMarksFee
T4Tutorials1771000
T4Tutorials2322000
T4Tutorials3883000

Table: Table generated after INNER Join

Inner Join Program Example in PHP, MYSQL

Database for the inner join program is shown below.

right join php mysql
Figure: Table brand, Table product and Database t4
Sr.#PHP code Description
 

1

$connect = mysqli_connect(“localhost”, “root”, “”, “ali”);Database connection between php page and sql data base, “ali” is the database name and server is “localgost”

 

 

 

2

$sql = “SELECT * FROM brand INNER JOIN product ON  prouct.br_id = brand.br_id”;First of all, we give the “$sql” variable and store the data form tow table using the “INNER JOIN”.

It’s the “INNER  JOIN” query to get the right side Colum data in my browser page.

 

3

 

$result = mysqli_query($connect, $sql);

The “$result” variable get the database connection and SQL query.

“mysqli_query ()” is the function.  The “mysqli_query ()” perform the query against the database.

 

4

 

if (mysqli_num_rows($result) > 0)

It’s” if” condition used to compare the “$result” variable and any values, if the “$result” variable is grater then “0” then run the “mysqli_num_rows ()” function.

“mysqli_num_rows ()” return the number of values in result set.

 

 

5

 

while ($row = mysqli_fetch_array($result))

When the if condition is true then the “while” loop run,

The “while” loop include the “$row” variable and the”mysqli_fetch_array()” fuuction. The “mysqli_fetch_array()” function fetch data form database.

6<?php echo $row[“br_name”]; ?>“$row” variable Show data in web page form databases
7    <?php echo $row[“pr_name”]; ?>“$row” variable Show data in web page form databases
Prof. Fazal Rehman Shamil
Researcher, Publisher of International Journal Of Software Technology & Science ISSN: 2616-5325
Instructor, SEO Expert, Web Programmer and poet.
Feel free to contact.