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PHP : Function Reference : Paradox File Access

Paradox File Access



This extension is EXPERIMENTAL. The behaviour of this extension -- including the names of its functions and anything else documented about this extension -- may change without notice in a future release of PHP. Use this extension at your own risk.

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.


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 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 »


Information for installing this PECL extension may be found in the manual chapter titled Installation of PECL extensions. Additional information such as new releases, downloads, source files, maintainer information, and a CHANGELOG, can be located here: »

Make sure you have pxlib installed before. If you install pxlib from an rpm or debian package, do not forget to install the development package as well.

Runtime Configuration

This extension has no configuration directives defined in php.ini.

Resource Types

px_new() creates a new Paradox object required by all Paradox functions.

Predefined Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

The following two tables lists all constants defined by the paradox extension.

Table 238. 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_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

Table 239. 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

Table of Contents

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

Code Examples / Notes » ref.paradox

john dot navratil

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)

22-dec-2006 08:25

Don't forget to add "" to your php.ini

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