Php/docs/function.cubrid-lob2-export
cubrid_lob2_export
(PECL CUBRID >= 8.4.1)
cubrid_lob2_export — Export the lob object to a file
说明
cubrid_lob2_export
( resource $lob_identifier
, string $file_name
) : bool
The cubrid_lob2_export() function is used to save the contents of BLOB/CLOB data to a file. To use this function, you must use cubrid_lob2_new() or fetch a lob object from CUBRID database first. If the file already exists, the operation will fail. This function will not influence the cursor position of the lob object. It operates the entire lob object.
参数
lob_identifier- Lob identifier as a result of cubrid_lob2_new() or get from the result set.
filename- File name you want to store BLOB/CLOB data. It also supports the path of the file.
返回值
true if the process is successful and false for failure.
范例
Example #1 cubrid_lob2_export() example
<?php// Table: test_lob (id INT, contents CLOB)$conn = cubrid_connect("localhost", 33000, "demodb", "dba", "");cubrid_execute($conn,"DROP TABLE if exists doc");cubrid_execute($conn,"CREATE TABLE doc (id INT, doc_content CLOB)");cubrid_execute($conn,"INSERT INTO doc VALUES (5,'hello,cubrid')");$req = cubrid_prepare($conn, "select * from doc");cubrid_execute($req);cubrid_move_cursor($req, 1, CUBRID_CURSOR_FIRST);$row = cubrid_fetch($req, CUBRID_NUM | CUBRID_LOB);cubrid_lob2_export($row[1], "doc_3.txt");cubrid_lob2_close($row[1]);cubrid_disconnect($conn);?>
参见
- cubrid_lob2_new() - Create a lob object
- cubrid_lob2_close() - Close LOB object
- cubrid_lob2_import() - Import BLOB/CLOB data from a file
- cubrid_lob2_bind() - Bind a lob object or a string as a lob object to a prepared statement as parameters
