Mysqli DELETE QUERY 在 PHP 脚本中不起作用 - Mysqli DELETE QUERY not working in PHP Script

Mysqli DELETE QUERY not working in PHP Script

我使用以下代码从表中删除条目我想做的是检查是否从表中删除了任何值。如果删除一个值，脚本应打印成功，否则为 false。这就是我迄今为止所取得的成就。请帮忙

<?PHP
    $mysqli = new mysqli("SQLHOST.COM","CLIENT","PASSWORD", "DNAME", 1234);
    if ($mysqli->connect_errno) {
        printf("Connect failed: %s'n", $mysqli->connect_error);
        exit();
    }
    else
    {
    printf("cONN Sucees");

    if ($result = $mysqli->query("DELETE FROM ktable WHERE code='value'")) {
        printf("Select returned %d rows.'n", $result->num_rows);

     printf($result->num_rows);
        $result->close();
    }
    }
    ?>

删除需要返回的内容是affected_rows http://www.php.net/manual/en/mysqli.affected-rows.php

您需要替换的内容

if ($result = $mysqli->query("DELETE FROM ktable WHERE code='value'")) {
    printf("Select returned %d rows.'n", $result->num_rows);

    printf($result->num_rows);
    $result->close();
}

工作代码

$value = ""; // Set To any Value
$mysqli = new mysqli ( "SQLHOST.COM", "CLIENT", "PASSWORD", "DNAME", 1234 );
if ($mysqli->connect_errno) {
    printf ( "Connect failed: %s'n", $mysqli->connect_error );
    exit ();
} else {
    printf ( "cONN Sucees" );
    if ($mysqli->query (sprintf ( "DELETE FROM ktable WHERE code='%s'", mysqli_real_escape_string ( $mysqli, $value ) ) )) {
        printf ( "Affected Rows  %d rows.'n", $mysqli->affected_rows );
    }
}

你应该有一个工作输出