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PHP Integrating PHP with Databases Databases and PHP Handling Exceptions

Mark Berning
Mark Berning
11,326 Points
Posted by Mark Berning
Mark Berning
11,326 Points

Misspelled db name still connects successfully on my local machine (not using Workspaces).

and it creates a new blank file with that misspelled name.

Johan Rönkkö
Johan Rönkkö
28,054 Points
Johan Rönkkö
Johan Rönkkö
28,054 Points

The problem is: "If 'example.db' does not exist, no exception is thrown but the file 'example.db' is created." from http://php.net/manual/en/pdo.construct.php. The thing is, i have a database.db in my folders, but it doesnt seem to appear in my texteditor when opening the folder. I don't know why...

Andrew Phythian
Andrew Phythian
19,747 Points

Did you view the result in the console or in the browser? When I viewed it in the console the outcome was precisely as you describe - no error and a file is generated. When I viewed it in the browser as per the video then the result was as intended.

I have no idea why the outcome was different, maybe somebody else can explain it.

3 Answers

Catherine McLoughlin
Catherine McLoughlin
2,946 Points
Catherine McLoughlin
Catherine McLoughlin
2,946 Points

You can also get an exception by messing with something besides the db name. For example, changing the DSN to "sqliteeeeee:".__DIR__."/database.db" causes an exception to be thrown.

Andrew Phythian
Andrew Phythian
19,747 Points

This does indeed create an exception. However, as pointed out above, if the .db name is misspelt then it just appears to create a blank version of the .db file when viewed in the console.

Joshua Lawson
Joshua Lawson
4,953 Points
Joshua Lawson
Joshua Lawson
4,953 Points

I had the same issue. I tried creating a new database with phpmyadmin and I got no error when connecting, but I did get the "unable to retrieve results" error.

Finally I just downloaded the project files and everything worked fine.

Sonya Trachsel
Sonya Trachsel
13,674 Points
Sonya Trachsel
Sonya Trachsel
13,674 Points

Has anyone been able to figure out what exactly is the issue? I'm using MAMP. Is there something we need to add to the existing files for it to work?

Thanks!

Johan Rönkkö
Johan Rönkkö
28,054 Points
Johan Rönkkö
Johan Rönkkö
28,054 Points

i solved it by creating a new database, giving it my own name. Then importing the sql-file in phpMyAdmin. The PDO object should look like this "$db = new PDO($dsn, $user, $password);", Where $dsn is "mysql:host=localhost;dbname=myOwnDatabaseName;port=3306;". $user and $password is simply "root". You can see the config for host, port, etc. on MAMP's website.