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oci_bind_by_name (PHP 5) oci_bind_by_name -- 绑定一个 PHP 变量到一个 Oracle 位置标志符 说明bool oci_bind_by_name ( resource stmt, string ph_name, mixed &variable [, int maxlength [, int type]] )
oci_bind_by_name() 将 PHP 变量
variable 绑定到 Oracle 的位置标志符
ph_name。该变量是否会被用作输入输出是在运行时决定的，并且函数给该变量分配必要的存储空间。length
参数确定该绑定的最大长度，如果将 length
设为 -1，oci_bind_by_name() 会用
variable 变量的当前长度确定绑定的最大长度。
如果要绑定一个抽象数据类型（LOB/ROWID/BFILE），需要先用
oci_new_descriptor() 函数分配空间。length
没有用于抽象数据类型，应被设为 -1。type
参数告诉 Oracle 要使用什么样的描述符。可能的值为：
例子 1. oci_bind_by_name() 例子
<?php
/* oci_bind_by_name example thies at thieso dot net (980221)
inserts 3 records into emp, and uses the ROWID for updating the
records just after the insert.
*/
$conn = oci_connect("scott", "tiger");
$stmt = oci_parse($conn, "
INSERT INTO
emp (empno, ename)
VALUES
(:empno,:ename)
RETURNING
ROWID
INTO
:rid
");
$data = array(
1111 => "Larry",
2222 => "Bill",
3333 => "Jim"
);
$rowid = oci_new_descriptor($conn, OCI_D_ROWID);
oci_bind_by_name($stmt, ":empno", $empno, 32);
oci_bind_by_name($stmt, ":ename", $ename, 32);
oci_bind_by_name($stmt, ":rid", $rowid, -1, OCI_B_ROWID);
$update = oci_parse($conn, "
UPDATE
emp
SET
sal = :sal
WHERE
ROWID = :rid
");
oci_bind_by_name($update, ":rid", $rowid, -1, OCI_B_ROWID);
oci_bind_by_name($update, ":sal", $sal, 32);
$sal = 10000;
foreach ($data as $empno => $ename) {
oci_execute($stmt);
oci_execute($update);
}
$rowid->free();
oci_free_statement($update);
oci_free_statement($stmt);
$stmt = oci_parse($conn, "
SELECT
*
FROM
emp
WHERE
empno
IN
(1111,2222,3333)
");
oci_execute($stmt);
while ($row = oci_fetch_assoc($stmt)) {
var_dump($row);
}
oci_free_statement($stmt);
/* delete our "junk" from the emp table.... */
$stmt = oci_parse($conn, "
DELETE FROM
emp
WHERE
empno
IN
(1111,2222,3333)
");
oci_execute($stmt);
oci_free_statement($stmt);
oci_close($conn);
?>
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记住，本函数删除了行尾的空白字符。见以下例子：
例子 2. oci_bind_by_name() 例子
<?php
$connection = oci_connect('apelsin','kanistra');
$query = "INSERT INTO test_table VALUES(:id, :text)";
$statement = oci_parse($query);
oci_bind_by_name($statement, ":id", 1);
oci_bind_by_name($statement, ":text", "trailing spaces follow ");
oci_execute($statement);
/*
This code will insert into DB string 'trailing spaces follow', without
trailing spaces
*/
?>
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例子 3. oci_bind_by_name() 例子
<?php
$connection = oci_connect('apelsin','kanistra');
$query = "INSERT INTO test_table VALUES(:id, 'trailing spaces follow ')";
$statement = oci_parse($query);
oci_bind_by_name($statement, ":id", 1);
oci_execute($statement);
/*
And this code will add 'trailing spaces follow ', preserving
trailing whitespaces
*/
?>
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如果成功则返回 TRUE，失败则返回 FALSE。
注:
在 PHP 5.0.0 之前的版本必须使用 ocibindbyname()
替代本函数。该函数名仍然可用，为向下兼容作为
oci_bind_by_name() 的别名。不过其已被废弃，不推荐使用。
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