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。现在我想将邮件发送给所有用户,这些用户在一个邮件中包含他们的行数据
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所有行发送多封电子邮件给不同的用户。 这是脚本为单个用户发送所有行的单独邮件。
我希望id为1@example.com的user1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);
?>
答案 0 :(得分:2)
您可以对要合并的行使用GROUP_CONCAT()
。这会为group_concat
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
然后你可以使用explode()
来获取php中的每个值,或者使用任何其他函数来处理返回的行数据。
您甚至可以将其与SUM()
混合以合并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 1000
2 2@example.com bike 400
3 3@example.com iron,dvd 300
修改强>
这是一种方法。
<?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);
?>
答案 1 :(得分:0)
为什么不将所有用户的信息都放入数组然后循环?
<?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
}
答案 2 :(得分:0)
你可以做两个嵌套查询(伪代码)
"SELECT DISTINCT email FROM items;"
foreach $email do:
"SELECT item FROM items WHERE email = $email;"
clear($all_items)
foreach $item do:
$all_items[] = $item
mail(... $all_items ...)
作为替代方法,使用GROUP_CONCAT
将所有项目放在一个字段中:
SELECT email, GROUP_CONCAT(item) all_items FROM items GROUP BY email
然后将all_items
字段放入您的电子邮箱中。