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XCIX. Paradox File Access
Einführung
| Warnung |
Diese Erweiterung ist EXPERIMENTELL. Das Verhalten dieser Erweiterung, einschließlich der Funktionsnamen, und alles Andere was hier dokumentiert ist, kann sich in zukünftigen PHP-Versionen ohne Ankündigung ändern. Seien Sie gewarnt und verwenden Sie diese Erweiterung auf eigenes Risiko. |
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.
Anmerkung: This module has not been tested on other platforms than Debian/GNU Linux for PPC.
Anmerkung: This module is also in development and may change, though I don't expect major changes to the API.
Anforderungen
You need at least PHP 5.0.0 and libpx >= 0.1.9. The paradox library (libpx) is available at http://pxlib.sourceforge.net.
Laufzeit Konfiguration
Diese Erweiterung definiert keine Konfigurationseinstellungen in der php.ini.
Object oriented API
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.
Tabelle 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() |
Vordefinierte Konstanten
Folgende Konstanten werden von dieser Erweiterung definiert und stehen nur zur Verfügung, wenn die Erweiterung entweder statisch in PHP kompiliert oder dynamisch zur Laufzeit geladen wurde.
The following two tables lists all constants defined by the paradox extension.
Tabelle 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 |
Tabelle 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) |
- Inhaltsverzeichnis
- px_close -- Closes a paradox database
- px_create_fp -- Create a new paradox database
- px_delete -- Deletes resource of paradox database
- px_get_field -- Returns the specification of a single field
- px_get_info -- Return lots of information about a paradox file
- px_get_parameter -- Gets a parameter
- px_get_record -- Returns record of paradox database
- px_get_schema -- Returns the database schema
- px_get_value -- Gets a value
- px_new -- Create a new paradox object
- px_numfields -- Returns number of fields in a database
- px_numrecords -- Returns number of records in a database
- px_open_fp -- Open paradox database
- px_put_record -- Stores record into paradox database
- px_set_blob_file -- Sets the file where blobs are read from
- px_set_parameter -- Sets a parameter
- px_set_tablename -- Sets the name of a table (deprecated)
- px_set_targetencoding -- Sets the encoding for character fields (deprecated)
- px_set_value -- Sets a value
- px_timestamp2string -- Converts the timestamp into a string.
| Zurück | Zum Anfang | Weiter |
| ovrimos_rollback | Nach oben | px_close |
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Generated: 2007-01-26 17:57:25