# Predefined Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

`FBSQL_ASSOC` (integer)
`FBSQL_NUM` (integer)
`FBSQL_BOTH` (integer)
`FBSQL_LOCK_DEFERRED` (integer)
`FBSQL_LOCK_OPTIMISTIC` (integer)
`FBSQL_LOCK_PESSIMISTIC` (integer)
`FBSQL_ISO_READ_UNCOMMITTED` (integer)
`FBSQL_ISO_READ_COMMITTED` (integer)
`FBSQL_ISO_REPEATABLE_READ` (integer)
`FBSQL_ISO_SERIALIZABLE` (integer)
`FBSQL_ISO_VERSIONED` (integer)
`FBSQL_UNKNOWN` (integer)
`FBSQL_STOPPED` (integer)
`FBSQL_STARTING` (integer)
`FBSQL_RUNNING` (integer)
`FBSQL_STOPPING` (integer)
`FBSQL_NOEXEC` (integer)
`FBSQL_LOB_DIRECT` (integer)
`FBSQL_LOB_HANDLE` (integer)