预定义常量

下列常量由此扩展定义，且仅在此扩展编译入 PHP 或在运行时动态载入时可用。

DBX_MYSQL (integer)

DBX_ODBC (integer)

DBX_PGSQL (integer)

DBX_MSSQL (integer)

DBX_FBSQL (integer)

DBX_OCI8 (integer)

DBX_SYBASECT (integer)

DBX_SQLITE (integer)

DBX_PERSISTENT (integer)

DBX_RESULT_INFO (integer)

DBX_RESULT_INDEX (integer)

DBX_RESULT_ASSOC (integer)

DBX_RESULT_UNBUFFERED (integer)

DBX_COLNAMES_UNCHANGED (integer)

DBX_COLNAMES_UPPERCASE (integer)

DBX_COLNAMES_LOWERCASE (integer)

DBX_CMP_NATIVE (integer)

DBX_CMP_TEXT (integer)

DBX_CMP_NUMBER (integer)

DBX_CMP_ASC (integer)

DBX_CMP_DESC (integer)