How to use MySQL query in CodeIgniter?

To submit a query, use the following function: $this->db->query(‘YOUR QUERY HERE’); The query() function returns a database result object when “read” type queries are run, which you can use to show your results. When “write” type queries are run it simply returns TRUE or FALSE depending on success or failure.

What is a CodeIgniter Active Record?

Active Record Class CodeIgniter uses a modified version of the Active Record Database Pattern. This pattern allows information to be retrieved, inserted, and updated in your database with minimal scripting. CodeIgniter does not require that each database table be its own class file.

How to write SQL query in CodeIgniter 4?

Syntax for Raw Query Method Use query() method of CodeIgniter 4. $db = db_connect(); OR $db = \Config\Database::connect(); It will connect with default connection group of application. Now, by using $db we can write and run queries.

What is active record in PHP?

Active record is an approach to access data in a database. Any object loaded gets its information from the database; when an object is updated, the corresponding row in the table is also updated. The wrapper class implements accessor methods or properties for each column in the table or view.

Does CodeIgniter prevent SQL injection?

7 Answers. CodeIgniter’s Active Record methods automatically escape queries for you, to prevent sql injection.

How do you escape special characters in CodeIgniter?

CodeIgniter has three methods that help you do this:

1. $this->db->escape() This function determines the data type so that it can escape only string data.
2. $this->db->escape_str() This function escapes the data passed to it, regardless of type.

How can active and inactive status in codeigniter?

In this tutorial, we are going to learn about how to create active inactive user status using codeigniter.

1. Step 1:- Create table in database.
2. Step 2:- Insert data in Users table.
3. Step 3: Create users controller in controller folder (Users.php)
4. Step 4: Create users_list page in View folder (users_list.php)

How check if query is successful in codeigniter?

You can use $this->db->affected_rows() in Codeigniter this returns a numeric value when doing “write” type queries (insert, update, etc.). In MySQL DELETE FROM TABLE returns 0 affected rows. The database class has a small hack that allows it to return the correct number of affected rows.

Does codeigniter prevent SQL injection?

How do you escape special characters in codeigniter?

How do you implement Active Record?

Construct an instance of the Active Record from a SQL result set row. Construct a new instance for later insertion into the table. Use static finder methods to wrap commonly used SQL queries and return Active Record objects. Update the database and insert data into the Active Record.

Which method is used to get all the active records from a table?

To retrieve objects from the database, Active Record provides a class method called Model. find. This method allows you to pass arguments into it to perform certain queries on your database without the need of writing raw SQL.