Avvertimento |
Questo modulo è SPERIMENTALE. Ovvero, il comportamento di queste funzioni, i nomi di queste funzioni, in definitiva tutto ciò che è documentato qui può cambiare nei futuri rilasci del PHP senza preavviso. Siete avvisati, l'uso di questo modulo è a vostro rischio. |
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.
Nota: This module has not been tested on other platforms than Debian/GNU Linux for PPC.
Nota: 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.
Questa estensione non definisce alcuna direttiva di configurazione in 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.
Tabella 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() |
Queste costanti sono definite da questa estensione e sono disponibili solo se l'estensione è stata compilata nel PHP o se è stata caricata dinamicamente a runtime.
The following two tables lists all constants defined by the paradox extension.
Tabella 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 |
Tabella 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) |