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Constants for PDO_4D — Constants for PDO_4D
The constants below are defined by
this driver, and will only be available when the extension has been either
compiled into PHP or dynamically loaded at runtime. In addition, these
driver-specific constants should only be used if you are using this driver.
Using driver-specific attributes with another driver may result in
unexpected behaviour. PDO::getAttribute() may be used to
PDO_ATTR_DRIVER_NAME attribute to check the
driver, if your code can run against multiple drivers.