用于发送电子邮件的多个复选框逻辑

Question

我对从一组复选框发送到选定电子邮件地址的逻辑有困难。

我有一个简单的表单，只有一个名字和一个姓氏输入，以及 4 个复选框。

我想做的是检查一个复选框或检查多个复选框时，以发送这些复选框表示的电子邮件。取决于选中哪些复选框以仅发送到那些特定的电子邮件。

例如我有 4 封电子邮件，如果选中第一个复选框以发送到这些电子邮件。如果选中复选框 1 和复选框 2 以发送到另一封电子邮件，或者选中复选框 2、3、4 以发送到另一封电子邮件。

如果我只选中一个复选框，我的代码就可以正常工作。

如果我选中多个复选框，例如复选框 1、3、4，它只会将电子邮件发送到复选框 1 电子邮件，而不会继续发送到第三个复选框电子邮件或第四个复选框电子邮件。我会忽略他们。

希望有人能帮我解决这个问题。

谢谢。

这是我的PHP代码

<?php

use PHPMailer\PHPMailer\PHPMailer;
include_once "PHPMailer/PHPMailer.php";
include_once "PHPMailer/Exception.php";

if(isset($_POST['submit'], $_POST["cbone"])) {

$name   = $_POST['name'];
$surname  = $_POST['surname'];


$mail = new PHPMailer();
$mail->addAddress("randomemailone@example.com");
$mail->setFrom($email);
//$mail->Subject = $subject;
$mail->isHTML(true);
$mail->Body = "
<p><strong>Name:</strong> $name</p> 
<p><strong>Surname:</strong> $surname</p>"; 


} else if(isset($_POST['submit'], $_POST['cbtwo'])) {

$name   = $_POST['name'];
$surname  = $_POST['surname'];


$mail = new PHPMailer();
$mail->addAddress("randomemailone@example.com");
$mail->addAddress("randomemailtwo@example.com");
$mail->setFrom($email);
$mail->isHTML(true);
$mail->Body = "
<p><strong>Name:</strong> $name</p> 
<p><strong>Surname:</strong> $surname</p>"; 


}else if(isset($_POST['submit'], $_POST['cbthree'])) {

$name   = $_POST['name'];
$surname  = $_POST['surname'];


$mail = new PHPMailer();
$mail->addAddress("randomemailone@example.com");
$mail->addAddress("randomemailtwo@example.com");
$mail->addAddress("randomemailthree@example.com");
$mail->setFrom($email);
$mail->isHTML(true);
$mail->Body = "
<p><strong>Name:</strong> $name</p> 
<p><strong>Surname:</strong> $surname</p>"; 


}else if(isset($_POST['submit'], $_POST['cbfour'])) {

$name   = $_POST['name'];
$surname  = $_POST['surname'];


$mail = new PHPMailer();
$mail->addAddress("randomemailone@example.com");
$mail->addAddress("randomemailtwo@example.com");
$mail->addAddress("randomemailthree@example.com");
$mail->addAddress("randomemailfour@example.com");
$mail->setFrom($email);
$mail->isHTML(true);
$mail->Body = "
<p><strong>Name:</strong> $name</p> 
<p><strong>Surname:</strong> $surname</p>"; 


}else if(isset($_POST['submit'], $_POST['cbone'], $_POST['cbtwo'])) {

$name   = $_POST['name'];
$surname  = $_POST['surname'];


$mail = new PHPMailer();
$mail->addAddress("randomemailone@example.com");
$mail->setFrom($email);
$mail->isHTML(true);
$mail->Body = "
<p><strong>Name:</strong> $name</p> 
<p><strong>Surname:</strong> $surname</p>"; 


}else if(isset($_POST['submit'], $_POST['cbone'], $_POST['cbthree'])) {

$name   = $_POST['name'];
$surname  = $_POST['surname'];


$mail = new PHPMailer();
$mail->addAddress("randomemailone@example.com");
$mail->addAddress("randomemailtwo@example.com");
$mail->setFrom($email);
$mail->isHTML(true);
$mail->Body = "
<p><strong>Name:</strong> $name</p> 
<p><strong>Surname:</strong> $surname</p>"; 


}else if(isset($_POST['submit'], $_POST['cbone'], $_POST['cbfour'])) {

$name   = $_POST['name'];
$surname  = $_POST['surname'];


$mail = new PHPMailer();
$mail->addAddress("randomemailone@example.com");
$mail->addAddress("randomemailfour@example.com");
$mail->setFrom($email);
$mail->isHTML(true);
$mail->Body = "
<p><strong>Name:</strong> $name</p> 
<p><strong>Surname:</strong> $surname</p>"; 


}else if(isset($_POST['submit'], $_POST['cbone'], $_POST['cbtwo'], $_POST['cbthree'])) {

$name   = $_POST['name'];
$surname  = $_POST['surname'];


$mail = new PHPMailer();
$mail->addAddress("randomemailthree@example.com");
$mail->addAddress("randomemailfour@example.com");
$mail->setFrom($email);
$mail->isHTML(true);
$mail->Body = "
<p><strong>Name:</strong> $name</p> 
<p><strong>Surname:</strong> $surname</p>"; 


}else if(isset($_POST['submit'], $_POST['cbone'], $_POST['cbtwo'], $_POST['cbthree'], $_POST['cbfour'])) {

$name   = $_POST['name'];
$surname  = $_POST['surname'];


$mail = new PHPMailer();
$mail->addAddress("randomemailone@example.com");
$mail->addAddress("randomemailfour@example.com");
$mail->setFrom($email);
$mail->isHTML(true);
$mail->Body = "
<p><strong>Name:</strong> $name</p> 
<p><strong>Surname:</strong> $surname</p>"; 


}else if(isset($_POST['submit'], $_POST['cbtwo'], $_POST['cbthree'])) {

$name   = $_POST['name'];
$surname  = $_POST['surname'];


$mail = new PHPMailer();
$mail->addAddress("randomemailone@example.com");
$mail->addAddress("randomemailtwo@example.com");
$mail->setFrom($email);
$mail->isHTML(true);
$mail->Body = "
<p><strong>Name:</strong> $name</p> 
<p><strong>Surname:</strong> $surname</p>"; 


}else if(isset($_POST['submit'], $_POST['cbtwo'], $_POST['cbfour'])) {

$name   = $_POST['name'];
$surname  = $_POST['surname'];


$mail = new PHPMailer();
$mail->addAddress("randomemailone@example.com");
$mail->addAddress("randomemailtwo@example.com");
$mail->addAddress("randomemailthree@example.com");
$mail->setFrom($email);
$mail->isHTML(true);
$mail->Body = "
<p><strong>Name:</strong> $name</p> 
<p><strong>Surname:</strong> $surname</p>"; 


}else if(isset($_POST['submit'], $_POST['cbthree'], $_POST['cbfour'])) {

$name   = $_POST['name'];
$surname  = $_POST['surname'];


$mail = new PHPMailer();
$mail->addAddress("randomemailtwo@example.com");
$mail->addAddress("randomemailfour@example.com");
$mail->setFrom($email);
$mail->isHTML(true);
$mail->Body = "
<p><strong>Name:</strong> $name</p> 
<p><strong>Surname:</strong> $surname</p>"; 


}else if(isset($_POST['submit'], $_POST['cbtwo'], $_POST['cbthree'], $_POST['cbfour'])) {

$name   = $_POST['name'];
$surname  = $_POST['surname'];


$mail = new PHPMailer();
$mail->addAddress("randomemailone@example.com");
$mail->addAddress("randomemailthree@example.com");
$mail->setFrom($email);
$mail->isHTML(true);
$mail->Body = "
<p><strong>Name:</strong> $name</p> 
<p><strong>Surname:</strong> $surname</p>"; 

}else {
    echo "Email was not send"; 
}

?>

表单代码

<form method="post" action="">
    <div class="form-group">
        <input type="text" name="name" class="form-control" placeholder="Name">
    </div>
    <div class="form-group">
        <input type="text" name="surname" class="form-control" placeholder="Surname">
    </div>
    <div class="form-check">
        <input class="form-check-input" type="checkbox" name="cbone" value="checkone" id="checkone">
        <label class="form-check-label" for="checkone">
            Checkbox One
        </label>
    </div>
    <div class="form-check">
        <input class="form-check-input" type="checkbox" name="cbtwo" value="checktwo" id="checktwo">
        <label class="form-check-label" for="checktwo">
            Checkbox Two
        </label>
    </div>
    <div class="form-check">
        <input class="form-check-input" type="checkbox" name="cbthree" value="checkthree" id="checkthree">
        <label class="form-check-label" for="checkthree">
            Checkbox Three
        </label>
    </div>
    <div class="form-check">
        <input class="form-check-input" type="checkbox" name="cbfour" value="checkfour" id="checkfour">
        <label class="form-check-label" for="checkfour">
            Checkbox Four
        </label>
    </div>
    <input type="submit" name="submit" class="btn btn-primary" value="Send Email">
</form>

Answer 1

您的 if 语句逻辑不正确。你正在这样做（在伪代码中）：

if (checkbox 1) {
  //send email 1
} elseif (checkbox 2) {
  //send email 2
} elseif (checkbox 3) {
  //send email 3
} elseif (checkbox 4) {
  //send email 4
}

只会发送其中一个。如果你想独立处理复选框的任意组合，你应该像这样构造它：

if (checkbox 1) {
  //send email 1
}
if (checkbox 2) {
  //send email 2
}
if (checkbox 3) {
  //send email 3
}
if (checkbox 4) {
  //send email 4
}

您不需要每次都创建一个新的 PHPMailer 实例；一开始创建一个实例，设置所有参数都是通用的，然后每个都重复使用，每次使用前用clearAddresses()清除地址列表。

Answer 2

问题

因为您正在使用 else 语句，所以您强制程序逻辑选择 this OR that，因此它只会选择它发现的第一个符合条件的复选框，而且这是唯一的一个。

解决方案

重新设计您的代码，以便在所有有效实例中填充 PHPMailer 对象，然后添加由表单数据设置的接收者（在本例中为复选框）：

if(isset($_POST['submit']) ){
    /***
     * Build mailer object with parts that are always true
     ***/

    $mail = new PHPMailer();
    $mail->setFrom($email);
    $mail->isHTML(true);
    $mail->Body = "
       <p><strong>Name:</strong> $name</p> 
       <p><strong>Surname:</strong> $surname</p>"; 

    /***
     * Check for IF clauses based on form data
     ***/
    if($_POST['cbone']) {
        $mail->addAddress("randomemailone@example.com");
        $mail->addAddress("randomemailtwo@example.com");
        ...etc....
    }
    if($_POST['cbtwo']) {
        $mail->addAddress("randomemailthree@example.com");
        ...etc....
    }
    if($_POST['cbthree']) {
        $mail->addAddress("randomemailthree@example.com");
        ...etc....
    }

    /***
     * finally, send mail
     ***/
    $mail->send(); 
}

这意味着您的代码现在会检查每个条件，而不仅仅是第一个为真的条件。

我还建议在发送前使用 CSRF token to prevent repeated sendings of emails on page refresh. And also as be aware you can clear PHPMailer addresses。

用于发送电子邮件的多个复选框逻辑

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问题

解决方案