Php 通过电子邮件将个人行数据从mysql发送给个人用户

嗨，我有10行，其中包含用户信息及其id和电子邮件。单个用户有多行。现在，我想向所有在一封邮件中包含行数据的用户发送邮件

假设

id  email           item    balance
1   1@example.com   car 200
2   2@example.com   bike    400
3   3@example.com   iron    100
1   1@example.com   cd  500
3   3@example.com   dvd 200
1   1@example.com   books   300

现在我使用下面的脚本向不同的用户发送多封电子邮件。 这是一个脚本，它为单个用户的所有行发送单独的邮件

我想要id为的user11@example.com将只接收包含与他相关的所有行数据的单个邮件

<?php
$con=mysqli_connect("localhost","root","xx","card");
// Check connection
if (mysqli_connect_errno())
  {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
  }

$result2 = mysqli_query($con,"SELECT * FROM mailtest");
while($row = mysqli_fetch_array($result2))
{
$to = $row['email'];
$subject = "subject";
$emailBody="";
$emailBody .= "ID: ".$row['id']."; Item: ".$row['item']."; Balance:      ".$row['balance']."; Email: ".$row['email']." \n";

$headers = 'From: Work Pass Notification System <no-reply@someemailaddress>' . "\r\n" .
    'Reply-To: someemailaddress' . "\r\n" .
    'X-Mailer: PHP/' . phpversion();

      if(mail($to, $subject, $emailBody, $headers)) {
          echo $emailBody;
          echo 'Email sent successfully!';
      } else {
          echo $emailBody;
          die('Failure: Email was not sent!');
      }

}

mysqli_close($con);
?>

---

为什么不将用户的所有信息放入一个数组中，然后循环使用

<?php

$con=mysqli_connect("localhost","root","xx","card");
// Check connection
if (mysqli_connect_errno())
  {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
  }

$result2 = mysqli_query($con,"SELECT * FROM mailtest");

while($row = mysqli_fetch_array($result2)){

    $send_details[$row['email']] .= "ID: ".$row['Stu_id']."; Pin No: ".$row['Pin_number']."; name:      ".$row['name']."; Email: ".$row['email']." \n";

}

foreach($send_details as $email => $body){
   // Send the mail
}

您可以在要合并的行上使用。这将为您分组的每个列返回一个csv

SELECT id, email, GROUP_CONCAT(item) as item,  GROUP_CONCAT(balance) as balance FROM mailtest GROUP BY id

返回

id  email           item            balance
1   1@example.com   car,cd,books    200,500,300
2   2@example.com   bike            400
3   3@example.com   iron,dvd        100,200

id  email           item            balance
1   1@example.com   car,cd,books    1000
2   2@example.com   bike            400
3   3@example.com   iron,dvd        300

然后可以使用
explode（）
在php中获取每个值，或者使用任何其他函数处理返回的行数据

您甚至可以将其与组合成
balance
列

SELECT id, email, GROUP_CONCAT(item) as item,  SUM(balance) as balance FROM mailtest GROUP BY id

返回

id  email           item            balance
1   1@example.com   car,cd,books    200,500,300
2   2@example.com   bike            400
3   3@example.com   iron,dvd        100,200

id  email           item            balance
1   1@example.com   car,cd,books    1000
2   2@example.com   bike            400
3   3@example.com   iron,dvd        300

编辑

这里有一种方法

<?php
$con=mysqli_connect("localhost","root","xx","card");
// Check connection
if (mysqli_connect_errno())
  {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
  }

$result2 = mysqli_query($con,"SELECT id, email, GROUP_CONCAT(item) as item,  GROUP_CONCAT(balance) as balance FROM mailtest GROUP BY id");
while($row = mysqli_fetch_array($result2))
{
$to = $row['email'];
$subject = "subject";
$emailBody="";
// explode the items/balances on the comma's
$items = explode(',',$row['item']);
$balance = explode(',',$row['balance']);
// Create a line for each item/balance
foreach($items as $key => $item){
    $emailBody .= "ID: ".$row['id']."; Item: ".$items[$key]."; Balance:      ".$balance[$key]."; Email: ".$row['email']." \n";}
// add a Total Balance line
$emailBody .= "Total Balance: ".array_sum($balance)."\n";
$headers = 'From: Work Pass Notification System <no-reply@someemailaddress>' . "\r\n" .
    'Reply-To: someemailaddress' . "\r\n" .
    'X-Mailer: PHP/' . phpversion();

      if(mail($to, $subject, $emailBody, $headers)) {
          echo $emailBody;
          echo 'Email sent successfully!';
      } else {
          echo $emailBody;
          die('Failure: Email was not sent!');
      }

}

mysqli_close($con);
?>

您可以执行两个嵌套查询（伪代码）

作为在单个字段中获取所有项目的替代用途：

SELECT email, GROUP_CONCAT(item) all_items FROM items GROUP BY email

然后将
所有项目
字段放在您的电子邮件中。
我认为此代码完整且有一些错误，请更正并发送给我，以便我可以检查。请在我的代码中应用此代码，并告诉我它的外观，我无法理解如何使用它感谢它现在工作请告诉我，不要用逗号发送值，然后我们可以按行发送……id电子邮件项目成本11@example.com汽车20011@example.comcd 500 11@example.com第300册我已经更新了我的答案，告诉我如何分解项目/余额，并为每个项目/余额画一行，最后一行是总余额。我在添加/更改代码的地方添加了行注释（mysql查询除外，这是不言自明的）