Left Join in PHP Source Code

Left join shows all rows from the left table and shows only matching rows from the right table.

In this example,t4tutorials_finance is the left table  and user_details is the right table.

joins PHP MySQLi

What will be displayed?

Left join shows all rows from the left table t4tutorials_finance and shows only matching rows from the right table user_details.

Left join Query in MySQLi

select * from t4tutorials_finance left join user_details on user_details.userid=T4Tutorials_finance.t4tutorials_id

Output

SalaryFirstnameLastname
80000fazalrehman

Left Join Program Example in PHP, MySQLi

The database for the code is shown below in the figure.

left Join PHP MySQLi

Video Lecture

Database t4tutorials_join

Download the database for left join

Table structure for table t4tutorials_finance

ColumnTypeNullDefault
t4tutorials_idint(222)No
t4tutorials_salaryint(222)No

Table structure for table user_details

ColumnTypeNullDefault
useridint(11)No
firstnamevarchar(30)No
lastnamevarchar(30)No

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