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更新：这个问题已经得到回答我有一个简单的表格，用户可以在其中更新他们的 mysql 数据库。我曾经mysql_用来连接到数据库，但了解到 pdo 是一种更好的方法，因为mysql_它已被折旧。

下面包括完整形式的旧方式，然后是完整形式的新方式。新方法产生错误

旧方式：

<?php

$host = 'ip_address';
$user = 'user_name';
$password = 'password';

$link = mysql_connect($host, $user, $password);

$selected = mysql_select_db('db_name', $link);

if(!isset($_POST['text-input']))

?>

<form method="post">
    %slice%
    <input type="submit" value="Submit" />
</form>
%[if !edit]%

<?php
%[repeat items]%
$form_input%id=repeatIndex% =  $_POST['element-%id=repeatIndex%'] ;
%[endrepeat]%

$query = 'INSERT INTO `table_name` (%[repeat items]%%[endif]%%html="Edit Me"%%[if !edit]%,%[endrepeat]%) VALUES (%[repeat items]%"' . $form_input%id=repeatIndex% . '",%[endrepeat]%);';
$query = preg_replace('/,\);/',');',$query);
$query = preg_replace('/,\) /',')',$query);
mysql_query($query);

?>
%[endif]%

新方式：

<?php
db = new PDO('mysql:host=ip_address;dbname=db_name;', 'user_name', 'password');
?> 
    <form method="post">
        %slice%
        <input type="submit" value="Submit" />
    </form>
    %[if !edit]%

<?php
%[repeat items]%
$form_input%id=repeatIndex% =  $_POST['element-%id=repeatIndex%'] ;

%[endrepeat]%

$query = 'INSERT INTO `table_name` (%[repeat items]%%[endif]%%html="Edit Me"%%[if !edit]%,%[endrepeat]%) VALUES (%[repeat items]%"' . $form_input%id=repeatIndex% . '",%[endrepeat]%);';
$query = preg_replace('/,\);/',');',$query);
$query = preg_replace('/,\) /',')',$query);
mysql_query($query);


?>
%[endif]%

抛出的错误是这样的：

Warning: mysql_query() [function.mysql-query]: Access denied for user
'kuler'@'localhost' (using password: NO) in
/home/path_to/index.php on line 125

Warning: mysql_query() [function.mysql-query]: A link to the server could not be
established in /home/path_to/index.php on line 125

我希望我已经提供了足够的信息。

4

1 回答 1

1

解决方法如下：

<?php

//Connection vars
$host = '%id=server%';
$user = '%id=username%';
$password = '%id=password%';
$databasename = '%id=database%';

//This block establishes the connection
try{
    //
    $connectiondetails = "mysql:host={$host};dbname={$databasename}";
    $db = new PDO($connectiondetails , $user , $password);
    $db->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_WARNING);
}
catch (PDOException $e) {
    print "Error!: " . $e->getMessage() . "<br/>";
    die();
}

//Check if all the input fields of the form have been submitted
if(
    %[repeat items]%
    isset($_POST['element-%id=repeatIndex%'])&&
    %[endrepeat]%
    (true===true)
){


    //The variables to read the output
    %[repeat items]%
    $form_input%id=repeatIndex% = $_POST["element-%id=repeatIndex%"] ;
    %[endrepeat]%

    //DB
    global $db;     //must set this, otherwise can't access the db  
    $query =  'INSERT INTO `%id=table%` (%[endif]%%[repeat items]%%html="Edit Me"%%[if !edit]%,%[endif]%%[endrepeat]%%[if !edit]%)%[endif]% %[if !edit]%VALUES (%[repeat items]%"' . $form_input%id=repeatIndex% . '",%[endrepeat]%);';
    $query = preg_replace('/,\);/',');',$query);
    $query = preg_replace('/,\) /',')',$query);
    $db->query($query);
    //[DB]
}

?>
于 2012-08-17T22:44:09.093 回答