PHP Exceptions

Exceptions are used for error handling.

Instead of crashing applications, we can safely catch errors.

---

try

try {

}

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catch

catch (
    Exception $e
) {

}

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Example

try {

    throw new Exception(
        "Database Failed"
    );

}
catch (
    Exception $e
) {

    echo
    $e->getMessage();

}

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finally

finally {

}

Always executes.

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Custom Exceptions

class DatabaseException
extends Exception {

}

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Throwing

throw new DatabaseException(
    "Failed"
);

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PocketMine Example

try {

    $this->saveData();

}
catch (
    Throwable $e
) {

    $this->getLogger()
        ->error(
            $e->getMessage()
        );

}

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Throwable Hierarchy

Throwable
├── Exception
└── Error

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Best Practices

✅ Catch specific exceptions.

✅ Log errors.

✅ Never hide exceptions silently.

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Next Chapter

➡ Namespaces