Php '；在'；陈述

对于SQL IN子句，在将SQL与PHP OCI8绑定时，如何处理未知数量的参数

例如，给定以下查询

select * from table1
where id > :id_1
and id in (:id_array_of_unknown_size)

以及要绑定的变量数组

$bind_array = array(
    ':id_1' => '1',
    ': id_array_of_unknown_size' => array('7','2','5',),
);

还需要注意的是，在我的特定情况下，输入

数组（$bind\u array）

可能包含也可能不包含bind元素的子数组。它也可以是下面的

select * from table1
where id > :id_1
and id !=  :id_2

及

---

您应该使用另一个函数绑定数组-oci\u bind\u array\u by\u name

您不能仅仅用数组对象替换：variable by oci\u bind\u by\u name

---

一种方法是在in子句中绑定少量固定数量的值，如的文档中所述。还有一种解决方案，可以将多个条件与数量可变的值绑定在一起

<?php
$ids = array(
    103,
    104
);

$conn         = oci_pconnect($user, $pass, $tns);
// Using ORACLE table() function to get the ids from the subquery
$sql          = 'SELECT * FROM employees WHERE employee_id IN (SELECT column_value FROM table(:ids))';
$stmt         = oci_parse($conn, $sql);
// Create collection of numbers. Build in type for strings is ODCIVARCHAR2LIST, but you can also create own types.
$idCollection = oci_new_collection($conn, 'ODCINUMBERLIST', 'SYS');

// Maximum length of collections of type ODCINUMBERLIST is 32767, maybe you should check that!
foreach ($ids as $id) {
    $idCollection->append($id);
}

oci_bind_by_name($stmt, ':ids', $idCollection, -1, SQLT_NTY);
oci_execute($stmt, OCI_DEFAULT);
oci_fetch_all($stmt, $return);
oci_free_statement($stmt);

oci_close($conn);

?>

---

您可以在oci中绑定到吗？我认为在PDO中你不能绑定到

<?php
$ids = array(
    103,
    104
);

$conn         = oci_pconnect($user, $pass, $tns);
// Using ORACLE table() function to get the ids from the subquery
$sql          = 'SELECT * FROM employees WHERE employee_id IN (SELECT column_value FROM table(:ids))';
$stmt         = oci_parse($conn, $sql);
// Create collection of numbers. Build in type for strings is ODCIVARCHAR2LIST, but you can also create own types.
$idCollection = oci_new_collection($conn, 'ODCINUMBERLIST', 'SYS');

// Maximum length of collections of type ODCINUMBERLIST is 32767, maybe you should check that!
foreach ($ids as $id) {
    $idCollection->append($id);
}

oci_bind_by_name($stmt, ':ids', $idCollection, -1, SQLT_NTY);
oci_execute($stmt, OCI_DEFAULT);
oci_fetch_all($stmt, $return);
oci_free_statement($stmt);

oci_close($conn);

?>