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The article "mg_php" provides information about a PHP extension for InterSystems Caché/IRIS and YottaDB. This extension allows PHP to interact with these databases, including setting, getting, deleting, and checking records, as well as invoking database commands and functions. The extension supports high-performance local database API or network-based connectivity models. Detailed instructions for installation, configuration, and usage of the extension are provided in the article [1].