PHP和MySQL删除多行脚本问题(PHP & MySQL deleting multiple ro

我想马上当用户点击删除按钮来删除两个不同表中两个表行，但由于某种原因，我不能让表中的行删除可以有一个人帮助我弄清楚什么是错我的脚本？ 谢谢

下面是MySQL数据库表。

CREATE TABLE cases (
id INT UNSIGNED NOT NULL AUTO_INCREMENT,
file VARCHAR(255) NOT NULL,
case VARCHAR(255) NOT NULL,
name VARCHAR(255) NOT NULL,
PRIMARY KEY (id)
);

CREATE TABLE users_cases (
id INT UNSIGNED NOT NULL AUTO_INCREMENT,
cases_id INT UNSIGNED NOT NULL,
user_id INT UNSIGNED NOT NULL,
PRIMARY KEY (id)
);

这里是PHP和MySQL脚本。

if(isset($_POST['delete_case'])) {

$cases_ids = array();

$mysqli = mysqli_connect("localhost", "root", "", "sitename");
$dbc = mysqli_query($mysqli,"SELECT cases.*, users_cases.* FROM cases INNER JOIN users_cases ON users_cases.cases_id = cases.id WHERE users_cases.user_id='$user_id'");

if (!$dbc) {
    print mysqli_error($mysqli);
}  else {
    while($row = mysqli_fetch_array($dbc)){ 
        $cases_ids[] = $row["cases_id"];
    }
}

foreach($_POST['delete_id'] as $di) {
    if(in_array($di, $cases_ids)) {
        $mysqli = mysqli_connect("localhost", "root", "", "sitename");
        $dbc = mysqli_query($mysqli,"DELETE FROM users_cases WHERE cases_id = '$delete_id'");

        $dbc2 = mysqli_query($mysqli,"DELETE FROM cases WHERE id = '$delete_id'");
    }

}

}

这里是XHTML。

<li>
<input type="text" name="file[]" size="25" />
<input type="text" name="case[]" size="25" />
<input type="text" name="name[]" size="25" />
<input type="hidden" name="delete_id" value="' . $row['cases_id'] . '" />
</li>

<li>
<input type="text" name="file[]" size="25" />
<input type="text" name="case[]" size="25" />
<input type="text" name="name[]" size="25" />
<input type="hidden" name="delete_id" value="' . $row['cases_id'] . '" />
</li>

<li>
<input type="text" name="file[]" size="25" />
<input type="text" name="case[]" size="25" />
<input type="text" name="name[]" size="25" />
<input type="hidden" name="delete_id" value="' . $row['cases_id'] . '" />
</li>

Answer 1:

也许我是错在这里，您可以设置所有其他形式的元素被放入数组EXCEPT delete_id。 被delete_id应该是在像这样形式的阵列？

<li>
    <input type="text" name="file[]" size="25" />
    <input type="text" name="case[]" size="25" />
    <input type="text" name="name[]" size="25" />
    <input type="hidden" name="delete_id[]" value="' . $row['cases_id'] . '" />
</li>

<li>
    <input type="text" name="file[]" size="25" />
    <input type="text" name="case[]" size="25" />
    <input type="text" name="name[]" size="25" />
    <input type="hidden" name="delete_id[]" value="' . $row['cases_id'] . '" />
</li>

<li>
    <input type="text" name="file[]" size="25" />
    <input type="text" name="case[]" size="25" />
    <input type="text" name="name[]" size="25" />
    <input type="hidden" name="delete_id[]" value="' . $row['cases_id'] . '" />
</li>

Answer 2:

请检查这一部分，

foreach($_POST['delete_id'] as $di) {
    if(in_array($di, $cases_ids)) {
        $mysqli = mysqli_connect("localhost", "root", "", "sitename");
        $dbc = mysqli_query($mysqli,"DELETE FROM users_cases WHERE cases_id = '$di'");

        $dbc2 = mysqli_query($mysqli,"DELETE FROM cases WHERE id = '$di'");
    }

}

文章来源: PHP & MySQL deleting multiple rows script problem