count_all() Query in Codeigniter

The count_all() method returns the number of rows in a table satisfying the criteria specified in the WHERE clause. It sets the number of rows or non NULL column values.

Permits you to determine the number of rows in a particular table. Submit the table name in the first parameter.

echo $this->db->count_all('tbl_user');  
// Produces an integer, like 25

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