PHP & MongoDB – Error Handling
MongoDB driver operations throws exceptions in case of any database operations and can be captured easily using following syntax:
try { } catch (MongoDBDriverExceptionException $e) { echo "Exception:", $e->getMessage(), "<br/>"; echo "File:", $e->getFile(), "<br/>"; echo "Line:", $e->getLine(), "<br/>"; }
Example
Try the following example to check database operation error in MongoDB server −
Copy and paste the following example as mongodb_example.php −
<?php try { // connect to mongodb $manager = new MongoDBDriverManager("mongodb://localhost:27017"); // Create a Command Instance $createCollection = new MongoDBDriverCommand(["create" => "sampleCollection"]); // Execute the command on the database $cursor = $manager->executeCommand("myDb", $createCollection); echo "Collection created."; } catch (MongoDBDriverExceptionException $e) { echo "Exception:", $e->getMessage(), "<br/>"; echo "File:", $e->getFile(), "<br/>"; echo "Line:", $e->getLine(), "<br/>"; } ?>
Output
Access the mongodb_example.php deployed on apache web server and verify the output.
Exception:Collection already exists. NS: myDb.sampleCollection File: htdocsphp_mongodbmongodb_example.php Line:10