How to return value in CodeIgniter?
The query() method returns a result object when you use read queries (like a select), while with write queries (like an insert or update) it returns TRUE or FALSE.
How to return query result in CodeIgniter?
There are several ways to generate query results:
- result() This function returns the query result as an array of objects, or an empty array on failure.
- result_array()
- row()
- row_array()
- $query->num_rows()
- $query->num_fields()
- $query->free_result()
What is Result_array () in CodeIgniter?
result_array() This function returns the query result as a pure array, or an empty array when no result is produced. Typically you’ll use this in a foreach loop, like this: $query = $this->db->query(“YOUR QUERY”); foreach ($query->result_array() as $row)
How do I get one row in CodeIgniter?
To retrieve the first row. If you require to get only one record from database table using codeigniter query then you can do it using row(). we can easily return one row from database in codeigniter. Change only in two line and you are getting actually what you want.
How do I get the last record in CI?
$row = $this->db->select(“*”)->limit(1)->order_by(‘id’,”DESC”)->get(“table name”)->row(); echo $row->id; //it will provide latest or last record id. $this->db->get(‘table_name’)->order_by(‘id’,’desc’)->limit(1); Hope this will work for you.
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.
What is difference between result and result array in CodeIgniter?
Answer #8: result_array() returns Associative Array type data. Returning pure array is slightly faster than returning an array of objects. result() is recursive in that it returns an std class object where as result_array() just returns a pure array, so result_array() would be choice regarding performance.
What is Num_rows in CodeIgniter?
In CodeIgniter num_rows() function is used to count the number of rows in the result-set. Here is the example of num_rows() function in CodeIgniter: $query=$this->db->query(‘SELECT * FROM employees’); echo $query->num_rows(); //It return the count of rows in result-set.
How do I get latest entry in mysql?
To get the last record, the following is the query. mysql> select *from getLastRecord ORDER BY id DESC LIMIT 1; The following is the output.
How do you check data is updated or not in CodeIgniter?
Check if db->update successful with Codeigniter when potentially no rows are updated. I’ve been using $this->db->affected_rows() to check if updates have been successful.
What is associative array in CodeIgniter?
In CodeIgniter there is a function query->row_array which will give you an associative array of your result, mapping column names to values. However this function only works if there is a single row as a result.
Which method fetches all rows from a result as an array?
To return a single row from a result set as an array or object, call the PDOStatement::fetch method. To return all of the rows from the result set as an array of arrays or objects, call the PDOStatement::fetchAll method.