我想一个PHP脚本,让我随机选择行从我的数据库表和更改“dispensered”的值设为1。我敢肯定,它有点愚蠢,但进出口新的这个东西。
这里是我的代码:
<?php
$hostname = 'localhost';
$user = 'root';
$pass = '';
$database = 'testt';
$db_connection = new PDO( "mysql:host=" . $hostname . ";dbname=" . $database,
$user, $pass );
$results = $db_connection->query( 'SELECT username, password FROM accounts WHERE dispensered = 0 ORDER by rand() LIMIT 1' );
$db_connection->query( 'UPDATE accounts SET dispensered=1 WHERE id='.$results['id'].'' );
foreach ( $results as $row ) {
echo '<p id="username">' . $row['username'] . '</p>';
echo '<p id="password">–' . $row['password'] . '</p>';
}
// Close the connection
$db_connection = null;
最好的祝福
Fatal error: Uncaught Error: Cannot use object of type PDOStatement as
array in C:\xampp\htdocs\test\index.php:13 Stack trace: #0 {main} thrown
in C:\xampp\htdocs\test\index.php on line 13
编辑:试过了;
$test = $results;
$db_connection->query( 'UPDATE accounts SET dispensered=1 WHERE
id='.$test['id'].'' );
但是,这并不工作,以及:(
PDO ::查询 - 执行SQL语句,返回设置为PDOStatement对象物体的结果。你试图访问$结果在您更新查询的数组。因此,你所看到的这个错误。您需要捕获从$行的“ID”值在for循环并在此之后运行更新查询。