| Внимание |
Это расширение является ЭКСПЕРИМЕНТАЛЬНЫМ. Поведение этого расширения, включая имена его функций и относящуюся к нему документацию, может измениться в последующих версиях PHP без уведомления. Используйте это расширение на свой страх и риск. |
This module allows to read Paradox database and primary index files. It has initial support for creating Paradox databases. Consider it to be experimental due to lack of documentation of the Paradox file format.
Замечание: This module has not been tested on other platforms than Debian/GNU Linux for PPC.
Замечание: This module is also in development and may change, though I don't expect major changes to the API.
You need at least PHP 5.0.0 and libpx >= 0.1.9. The paradox library (libpx) is available at http://pxlib.sourceforge.net.
Данное расширение не определяет никакие директивы конфигурации в php.ini.
The paradox extension provides also an object oriented API. It consists of only one class called paradox_doc. Its methods only differ from the functions in its name and of course the missing first parameter. The following table will list all methods and its equivalent functions.
Таблица 1. Methods of class paradox_doc
| Name of method | Equivalent function |
|---|---|
| Constructor | px_new() |
| Destructor | px_delete() |
| open_fp() | px_open_fp() |
| create_fp() | px_create_fp() |
| close() | px_close() |
| numrecords() | px_numrecords() |
| numfields() | px_numfields() |
| get_record() | px_get_record() |
| put_record() | px_put_record() |
| get_field() | px_get_field() |
| get_schema() | px_get_schema() |
| get_info() | px_get_info() |
| set_parameter() | px_set_parameter() |
| get_parameter() | px_get_parameter() |
| set_value() | px_set_value() |
| get_value() | px_get_value() |
| get_info() | px_get_info() |
| set_targetencoding() | px_set_targetencoding() |
| set_tablename() | px_set_tablename() |
| set_blob_file() | px_set_blob_file() |
| timestamp2string() | px_timestamp2string() |
Перечисленные ниже константы определены данным расширением и могут быть доступны только в том случае, если PHP был собран с поддержкой этого расширения или же в том случае, если данное расширение подгружается во время выполнения.
The following two tables lists all constants defined by the paradox extension.
Таблица 2. Contants for field types
| Name | Meaning |
|---|---|
| PX_FIELD_ALPHA | Character data with fixed length |
| PX_FIELD_DATE | Date |
| PX_FIELD_SHORT | Short integer (2 Bytes) |
| PX_FIELD_LONG | Long integer (4 Bytes) |
| PX_FIELD_CURRENCY | same as PX_FIELD_NUMBER |
| PX_FIELD_NUMBER | Double |
| PX_FIELD_LOGICAL | Boolean |
| PX_FIELD_MEMOBLOB | Binary large object (not supported) |
| PX_FIELD_BLOB | Binary large object (not supported) |
| PX_FIELD_FMTMEMOBLOB | Binary large object (not supported) |
| PX_FIELD_OLE | OLE object (basically a blob, not supported) |
| PX_FIELD_GRAPHIC | Graphic (basically a blob, not supported) |
| PX_FIELD_TIME | time |
| PX_FIELD_TIMESTAMP | timestamp (like the unix timestamp) |
| PX_FIELD_AUTOINC | Auto incrementing interger (like PX_FIELD_LONG) |
| PX_FIELD_BCD | Decimal number stored in bcd format (not supported) |
| PX_FIELD_BYTES | Array of Bytes with not more than 255 bytes (not supported) |
| PX_KEYTOLOWER | |
| PX_KEYTOUPPER |
Таблица 3. Contants for file types
| Name | Meaning |
|---|---|
| PX_FILE_INDEX_DB | Indexed database |
| PX_FILE_PRIM_INDEX | Primary index |
| PX_FILE_NON_INDEX_DB | None indexed database |
| PX_FILE_NON_INC_SEC_INDEX | None incremental secondary index (not supported) |
| PX_FILE_SEC_INDEX | Secondary index (not supported) |
| PX_FILE_INC_SEC_INDEX | Incremental secondary index (not supported) |
| PX_FILE_NON_INC_SEC_INDEX_G | (not supported) |
| PX_FILE_SEC_INDEX_G | (not supported) |
| PX_FILE_INC_SEC_INDEX_G | (not supported) |
| Пред. | Начало | След. |
| ovrimos_rollback | Уровень выше | px_close |