How Can I Retrieve Numeric Data Types from MySQL Using PDO?

PDO: Retrieving Numeric Types from MySQL

When accessing MySQL databases using PDO, you might encounter an issue where numeric values from the database are being returned as strings. This can be problematic for numerical calculations and data processing.

Cause: PDO Default Behavior

By default, PDO fetches all data as strings, regardless of its actual type in the database. This is done for flexibility and compatibility reasons, as not all databases support native data typing.

Solution: Disable Stringification

To prevent PDO from converting numeric values to strings, you can disable the stringification option. However, this feature is not supported by the MySQL driver.

Use Prepared Statements

A more reliable approach is to use prepared statements, which allow you to specify the data types of the values being retrieved. This ensures that numeric values are returned as numeric data types. To disable prepared statement emulation and force MySQL to return native data types:

$pdo = new PDO($dsn, $user, $pass, [
    PDO::ATTR_EMULATE_PREPARES => false
]);

Conclusion

To get numeric types from MySQL using PDO, it is recommended to use prepared statements and disable prepared statement emulation. This ensures that numeric values are returned in their proper numeric data types.

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