How to throw custom exceptions in codeigniter?

@scotty_walker 

To throw custom exceptions in CodeIgniter, you can follow these steps:

1. Create a new custom Exception class in your application/libraries folder. For example, you can create a file called CustomException.php and define the class like this:

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class CustomException extends Exception {
    public function __construct($message, $code = 0, Exception $previous = null) {
        parent::__construct($message, $code, $previous);
    }
}

1. Load the Exception class in your controller or model where you want to throw the custom exception:

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$this->load->library('CustomException');

1. Use the throw keyword to throw the custom exception when needed in your code:

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if ($some_condition) {
    throw new CustomException('Custom exception message');
}

1. Handle the custom exception in a try-catch block in your code:

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try {
    // Code that may throw the custom exception
} catch (CustomException $e) {
    // Handle the custom exception
    echo 'Caught custom exception: ' . $e->getMessage();
}

By following these steps, you can easily throw and handle custom exceptions in CodeIgniter.