# cubrid_lob_get

(PECL CUBRID >= 8.3.1)

cubrid_lob_get — Get BLOB/CLOB data

### 说明

cubrid_lob_get ( resource `$conn_identifier` , string `$sql` ) : array

cubrid_lob_get() is used to get BLOB/CLOB meta info from CUBRID database, CUBRID gets BLOB/CLOB by executing the SQL statement, and returns all LOBs as a resource array. Be sure that the SQL retrieves only one column and its data type is BLOB or CLOB.

Remember to use cubrid_lob_close() to release the LOBs if you don't need it any more.

### 参数

`conn_identifier`

  Connection identifier.

`sql`

  SQL statement to be executed.

### 返回值

Return an array of LOB resources, when process is successful.

`FALSE`, when process is unsuccessful.

### 范例

Example #1 cubrid_lob_get() example

    <?php
    $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')");

    $lobs = cubrid_lob_get($conn, "SELECT doc_content FROM doc WHERE id=5");
    echo "Doc size: ".cubrid_lob_size($lobs[0])." bytes";
    cubrid_lob_export($conn, $lobs[0], "doc_5.txt");
    cubrid_lob_close($lobs);
    cubrid_disconnect($conn);
    ?>

### 参见

- cubrid_lob_close() - Close BLOB/CLOB data
- cubrid_lob_size() - Get BLOB/CLOB data size
- cubrid_lob_export() - Export BLOB/CLOB data to file
- cubrid_lob_send() - Read BLOB/CLOB data and send straight to browser