Catch pdoexception e throw new exception e getmessage

A classic PHP error handling pattern!

Here's a breakdown of what's happening:

catch (PDOException $e): This is a try-catch block that catches a PDOException exception. The $e variable represents the exception object.
throw new Exception($e->getMessage()): This line re-throws the PDOException exception as a new Exception object. The message of the original exception is passed to the new exception using the $e->getMessage() method.

By doing this, you're effectively "wrapping" the original PDOException exception in a new Exception object, which can be useful for several reasons:

It allows you to catch the original exception in a higher-level try-catch block, without having to worry about the specific type of exception (PDOException).
It provides a more generic error message that can be displayed to the user, without exposing the underlying database error details.
It allows you to add additional error handling or logging logic before re-throwing the exception.

Here's an example of how this might look in a PHP script:

try {
    // database query code that might throw a PDOException
    $stmt = $pdo->prepare('SELECT * FROM users WHERE id = :id');
    $stmt->execute(['id' => 1]);
    $result = $stmt->fetchAll();
} catch (PDOException $e) {
    throw new Exception($e->getMessage());
}

In this example, if the database query fails and throws a PDOException, the catch block will catch it and re-throw it as a new Exception object with the same message. The outer try-catch block can then catch this new exception and handle it accordingly.

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Catch pdoexception e throw new exception e getmessage