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In driver-based packages you should check if the driver exists before
loading it. A simple file_exists() does not work
since it does not check the
include path.
fopen()'s third parameter does that, so we use it.
<?php
$driver = 'SomeDriver';
$class = 'My_Package_Driver_' . $driver;
$file = str_replace('_', '/', $class) . '.php';
//check if it exists and can be loaded
if (!@fclose(@fopen($file, 'r', true))) {
throw new My_Package_Driver_Exception(
'Driver ' . $driver . ' cannot be loaded.'
);
}
//continue with including the driver
require_once $file;
//...
?>
