php man page for px_set_blob_file

PX_SET_BLOB_FILE(3)													       PX_SET_BLOB_FILE(3)

px_set_blob_file - Sets the file where blobs are read from

SYNOPSIS
       bool px_set_blob_file (resource	$pxdoc, string	$filename)

DESCRIPTION
	Sets  the  name  of  the  file	where  blobs are going to be read from or written into. Without calling this function, px_get_record(3) or
       px_retrieve_record(3) will only return data in blob fields if the data is part of the record and not stored in the blob file. Blob data	is
       stored in the record if it is small enough to fit in the size of the blob field.

	Calling  px_put_record(3),  px_insert_record(3),  or px_update_record(3) without calling px_set_blob_file(3) will result in truncated blob
       fields unless the data fits into the database file.

	Calling this function twice will close the first blob file and open the new one.

PARAMETERS
	      o $pxdoc
		- Resource identifier of the paradox database as returned by px_new(3).

	      o $filename
		- The name of the file. Its extension should be .MB.

RETURN VALUES
	Returns TRUE on success or FALSE on failure.

PHP Documentation Group 												       PX_SET_BLOB_FILE(3)