Lazy Database Connecting
Lazy Database Connecting
Lazy-connecting to database can save a lot of resources. There might be many times where you don't need an actual database connection, hence its always recommended to use lazy-connecting (that means Doctrine will only connect to database when needed).
This feature can be very useful when using for example page caching, hence not actually needing a database connection on every request. Remember connecting to database is an expensive operation.
In the example below we will show you when you create a new Doctrine connection, the connection to the database isn't created until it is actually needed.
// bootstrap.php
// ...
// At this point no actual connection to the database is created
$conn = Doctrine_Manager::connection('mysql://username:password@localhost/test');
// The first time the connection is needed, it is instantiated
// This query triggers the connection to be created
$conn->execute('SHOW TABLES');
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