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, 或者在失败时返回 false.

示例

示例 #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

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