How can I tell if a database connection is successful in CodeIgniter?
try { // make the database connection } catch (Exception $e) { // DO whatever you want with the data in $e, it has a default __toString() , so just echo $e if you want errors or default to connect another database, etc. echo $e->getMessage(); // Connect to the secondary database. }
Table of Contents
How do I check my database connection?
Background
- Create a file on the server called test. ull.
- Double click on the test.
- Click on the Provider tab.
- Select Microsoft OLE DB Provider for SQL Server.
- Click Next.
- On the Connection tab, enter the connection information entered for the database connection:
- Enter the SQL database credentials.
- Click Test Connection.
How to manually connect to database in CodeIgniter?
Manual connection to a database
- $this->load->database(‘group_name’);
- $dsn = ‘dbdriver://username: [correo electrónico protegido] /database’; $this->load->database($dsn);
- $dsn = ‘dbdriver://username: [correo electrónico protegido] /database? char_set=utf8&dbcollat=utf8_general_ci&cache_on=true&cachedir=/path/to/cache’; $this->load->database($dsn);
How do I find access to the server?
A very basic check you can try is to telnet to the port, if it times out then it’s unreachable, if you get a clear screen and a blinking cursor (it might time out with an error or possibly even print some text), just type ” TELNET {IP Address} {PORT}”.
How to manually connect to a database in CodeIgniter?
Manually connecting to a database in codeigniter using the second parameter as TRUE will return the database object on which you can run your queries. If the connection is denied for any reason, codeigniter will stop your application and throw that error for you. — Iberê 18 Sep.
Can a CI function just check if it can connect to the database?
As far as I know, CI doesn’t have a function that just checks if it can connect to the database or not, and return true/false. However, for the solution, I would close the connection before returning true/false.
How to set autoinit to false in CI?
In an earlier version of CI, I would set the ‘autoinit’ variable in the database configuration file to false and initialize my database in an if statement that would return true or false if the connection could not be made without throwing one. caveat. If false, it would load a page with instructions on how to configure the database configuration file.
How does CodeIgniter close non-persistent connections in PHP?
In a PHP environment that doesn’t use persistent connections, there’s no real need to call it. For MySQL in particular, all open non-persistent MySQL connections and result sets are automatically destroyed when a PHP script finishes execution. Which in CodeIgniter happens right after the controller method ends.