ovrimos_rollback
Some difficulties were encountered installing this extension on php 5.1.6. 're2c' was not found. On Fedora Core 5, php 5.1.6, I had to...
Install gc++ as re2c requires C++ and will not compile with the standard C compiler most often used.
Download re2c from sourceforge, untar, configure, make, make install.
Download pxlib from sourceforge, untar, configure, make, make install.
pecl install paradox (it has been moved from pear)
CXIII. Paradox File Access
Introdução
| Atenção |
Este módulo é EXPERIMENTAL. Isso quer dizer que o comportamento neste módulo --- incluindo suas funções e seus nomes, e TUDO mais que está documentado sobre esse módulo --- poderá mudar em futuras versões do PHP, SEM QUALQUER NOTIFICAÇÃO. Esteja avisado, e use este módulo por sua própria conta e risco. |
This module allows to read and write Paradox databases, primary index files and blob files. Write support has been proven to be quite reliable, though due to lack of documentation the produced files may not in any case be readable by other applications. Encrypted databases can be read without specifying a password if pxlib >= 0.5.0 is used.
Nota: This module is also in development and may change, though I don't expect major changes to the API.
Dependências
You need at least PHP 5.0.0 and pxlib >= 0.4.4 for the basic set of functions. Some newer functions are only available with pxlib >= 0.6.0. Reading and writing of encrypted databases requires at least pxlib >= 0.5.0. The paradox library (pxlib) is available at http://pxlib.sourceforge.net.
Instalação
A short installation note: just type
$ pear install paradox |
Configurações em execução
Esta extensão não define nenhum parâmetro de configuração no php.ini.
Object oriented API
The paradox extension provides also an object oriented API. It consists of only one class called paradox_db. 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.
Tabela 1. Methods of class paradox_db
| 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() |
| retrieve_record() | px_retrieve_record() |
| delete_record() | px_delete_record() |
| insert_record() | px_insert_record() |
| update_record() | px_update_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() |
| date2string() | px_date2string() |
| timestamp2string() | px_timestamp2string() |
Constantes pré-definidas
As contantes abaixo são definidas por esta extensão e somente estarão disponíveis quando a extensão foi compilada com o PHP ou carregada dinamicamente durante a execução.
The following two tables lists all constants defined by the paradox extension.
Tabela 2. Contants for field types
| Name | Meaning |
|---|---|
| PX_FIELD_ALPHA | Character data with fixed length |
| PX_FIELD_DATE | Date, number of days since 1.1.0000 |
| 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 |
| PX_FIELD_BLOB | Binary large object (not supported) |
| PX_FIELD_FMTMEMOBLOB | Binary large object |
| PX_FIELD_OLE | OLE object (basically a blob, not supported) |
| PX_FIELD_GRAPHIC | Graphic (basically a blob, not supported) |
| PX_FIELD_TIME | time, number of milli seconds since midnight |
| PX_FIELD_TIMESTAMP | timestamp, number of milli seconds since 1.1.0000 |
| 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 | Turn all field names into lower case |
| PX_KEYTOUPPER | Turn all field names into upper case |
Tabela 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 |
| PX_FILE_SEC_INDEX | Secondary index |
| PX_FILE_INC_SEC_INDEX | Incremental secondary index |
| PX_FILE_NON_INC_SEC_INDEX_G | Non incremental secondary index |
| PX_FILE_SEC_INDEX_G | Secondary index |
| PX_FILE_INC_SEC_INDEX_G | Non incremental secondary index |
- Índice
- px_close -- Closes a paradox database
- px_create_fp -- Create a new paradox database
- px_date2string -- Converts a date into a string.
- px_delete_record -- Deletes record from 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_insert_record -- Inserts record into paradox database
- 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_retrieve_record -- Returns record of 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.
- px_update_record -- Updates record in paradox database
add a note
User Contributed Notes
Paradox File Access
john dot navratil at sbcglobal dot net
22-Dec-2006 08:06