How to get last insert id in PHP Codeigniter?

How to get last insert id in PHP Codeigniter?

In this PHP Codeigniter Tutorial, I will let you know how to get last inserted id from the table.

Sometimes, You have to work on relational tables where you perform the insert query on a table and you need that automatically generated ID to insert into second table to create relation between both tables.

In PHP, you can use mysqli_insert_id function to get the last inserted ID.

In Codeigniter, You can use insert_id() function to get latest auto incremented column value from the MySQL table.

insert_id() is function of "db" library. There are numbers of query helper method in Codeigniter.

Example :
function saveUserInfo(){
   $input = ['name'=>'Ajay Gupta', 'email'=>''];
   $this->db->insert('users', $input);
   $insertId = $this->db->insert_id();
   return  $insertId;

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