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

成功时返回 true，或者在失败时返回 false。

范例

示例 #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

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官方地址：https://www.php.net/manual/en/function.cubrid-lob2-export.php

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cubrid_lob2_export

说明

参数

返回值

范例

参见

User Contributed Notes