函數(shù)名稱:ocicloselob()
適用版本: PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8
函數(shù)描述:關(guān)閉一個(gè)LOB對(duì)象
用法:bool ocicloselob ( resource $lob_descriptor )
參數(shù):
- $lob_descriptor:一個(gè)有效的LOB對(duì)象描述符,通過oci_new_descriptor()函數(shù)或從查詢結(jié)果中獲取的OCI-Lob對(duì)象獲得。
返回值:
- 成功關(guān)閉LOB對(duì)象時(shí)返回true,失敗時(shí)返回false。
示例:
// 創(chuàng)建一個(gè)LOB對(duì)象描述符
$lob_descriptor = oci_new_descriptor($connection, OCI_D_LOB);
// 從數(shù)據(jù)庫中獲取LOB對(duì)象
$sql = "SELECT lob_column FROM my_table WHERE id = :id";
$statement = oci_parse($connection, $sql);
$id = 1;
oci_bind_by_name($statement, ":id", $id);
oci_execute($statement);
oci_fetch($statement);
// 將LOB對(duì)象描述符與查詢結(jié)果中的LOB對(duì)象關(guān)聯(lián)
oci_result($statement, 'LOB_COLUMN')->save($lob_descriptor);
// 關(guān)閉LOB對(duì)象
if (ocicloselob($lob_descriptor)) {
echo "LOB對(duì)象已成功關(guān)閉";
} else {
echo "關(guān)閉LOB對(duì)象失敗";
}
// 釋放資源
oci_free_statement($statement);
oci_close($connection);
在上面的示例中,我們首先使用oci_new_descriptor()函數(shù)創(chuàng)建了一個(gè)LOB對(duì)象描述符。然后,我們執(zhí)行了一個(gè)查詢語句,從數(shù)據(jù)庫中獲取了LOB對(duì)象,并將其與LOB對(duì)象描述符關(guān)聯(lián)起來。最后,我們使用ocicloselob()函數(shù)關(guān)閉了LOB對(duì)象。