Question

I am new to Codeigniter and PHP..

while doing some operations i have some doubts ,especially in the database libraries .

$get = "select filed_1 from tbl_ctc where ctc=?";
$get = $this->db->query($get,array($ctc_n));

if ($get)
{

 //do some operations 
}
else
{
 //do some another operations 

}

What will be the return value of $get if it is success ?

Expecting opinion & suggestion [downvotes too]

Thank you.

Answer 1

What “opinions and suggestions” do you expect?

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.

In case of a SELECT, i.e., you might want to check if it has any result:

$query = $this->db->query($select_query);
if($query->num_rows() > 0)
{}

While, in case of an INSERT for ex.:

$query = $this->db->query($insert_query);
if($query)   // or if(FALSE !== $query)
{}
else
{}

Note that if you are using Active Record, you’ll have the result() / row() and result_array() / row_array() methods that will return either a full object/array or an empty one, so you’ll need to check for those values instead.