PHP聯系表格，帶下拉菜單以更改電子郵件

Question

我正在使用帶有下拉菜單的聯系表來選擇要發送給特定醫生的電子郵件地址。 我使用的是模板，並且在PHP中沒有很多經驗。 將表單上傳到服務器時，出現“警告：array_key_exists（）的參數計數錯誤”，但我無法查明問題。

<link href="css/contactform.css" rel="stylesheet" type="text/css" />
<?php

// Set email variables
$email_to = array('phys1' => 'phys1@xxxxxx.xxx', 'phys2' => 'phys2@xxxxxx.xxx');
if(array_key_exists($_POST['dropdown']))
{
$recipient = $emails[$_POST['dropdown']];
//send email to $recipient
}

$email_subject = 'Form submission';

// Set required fields
$required_fields = array('fullname','email','comment');

// set error messages
$error_messages = array(
'fullname' => 'Please enter a Name to proceed.',
'email' => 'Please enter a valid Email Address to continue.',
'comment' => 'Please enter your Message to continue.'
);

// Set form status
$form_complete = FALSE;

// configure validation array
$validation = array();

// check form submittal
if(!empty($_POST)) {
// Sanitise POST array
foreach($_POST as $key => $value) $_POST[$key] = remove_email_injection(trim($value));

// Loop into required fields and make sure they match our needs
foreach($required_fields as $field) {       
    // the field has been submitted?
    if(!array_key_exists($field, $_POST)) array_push($validation, $field);

    // check there is information in the field?
    if($_POST[$field] == '') array_push($validation, $field);

    // validate the email address supplied
    if($field == 'email') if(!validate_email_address($_POST[$field])) array_push($validation, $field);
    }

// basic validation result
if(count($validation) == 0) {
    // Prepare our content string
    $email_content = 'New Website Comment: ' . "\n\n";

    // simple email content
    foreach($_POST as $key => $value) {
        if($key != 'submit') $email_content .= $key . ': ' . $value . "\n";
    }

    // if validation passed ok then send the email
    mail($email_to, $email_subject, $email_content);

    // Update form switch
    $form_complete = TRUE;
}
}

function validate_email_address($email = FALSE) {
return (preg_match('/^[^@\s]+@([-a-z0-9]+\.)+[a-z]{2,}$/i', $email))? TRUE : FALSE;
}

function remove_email_injection($field = FALSE) {
   return (str_ireplace(array("\r", "\n", "%0a", "%0d", "Content-Type:", "bcc:","to:","cc:"), '', $field));
}

?>

<script type="text/javascript">
    var nameError = '<?php echo $error_messages['fullname']; ?>';
    var emailError = '<?php echo $error_messages['email']; ?>';
    var commentError = '<?php echo $error_messages['comment']; ?>';
</script>

</head>
<div id="formWrap">
<div id="form">
<?php if($form_complete === FALSE): ?>
<form action="/contact.php" method="post" id="comments_form">
    <div class="row">
    <div class="label">Name</div>
    <div class="input">
    <input type="text" id="fullname" class="detail" name="fullname" value="<?php echo isset($_POST['fullname'])? $_POST['fullname'] : ''; ?>" /><?php if(in_array('fullname', $validation)): ?><span class="error"><?php echo $error_messages['fullname']; ?></span><?php endif; ?>
    </div>
    <div class="context"></div>

    <div class="row">
    <div class="label">Your E-mail</div>
    <div class="input"><input type="text" id="email" class="detail" name="email" value="
<?php echo isset($_POST['email'])? $_POST['email'] : ''; ?>" />
<?php if(in_array('email', $validation)): ?><span class="error"><?php echo $error_messages['email']; ?></span><?php endif; ?>
    </div>
    <div class="context"></div>

    <div class="row">
    <div class="label">Select Physician</div>
    <div class="input"><select name='dropdown' >
<option value=''>

    --Select--</option>
<option value='phys1'>

    phys1</option>
<option value='phys2'>

    phys2</option>
<option value='phys3'>

    phys3</option>
</select>       </div>
    <div class="context"></div>


    <div class="row">
    <div class="label">

     Your Message</div>
    <div class="input">
    <textarea id="comment" name="comment" class="mess"><?php echo isset($_POST['comment'])? $_POST['comment'] : ''; ?></textarea><?php if(in_array('comment', $validation)): ?><span class="error"><?php echo $error_messages['comment']; ?></span><?php endif; ?>
    </div>
    </div>  
    <div class="submit"></div>
    <input type="submit" id="submit" name="submit" value="Send Message" />
</div>
</form>
<?php else: ?>
<p>

    Thank you for your message!</p>
 <?php endif; ?>
</div>
</div>
</div>
</div>
</div>
</div>  
</div>  
</body>
</html>

表格上傳到這里： http://endotest.zxq.net/contact_test.php

Answer 1

如果查看array_key_exists的文檔，您會注意到該函數帶有兩個參數。 一個鍵（數組鍵）和一個數組（您要搜索相關數組鍵/索引的數組）。

您的代碼：

if(array_key_exists($_POST['dropdown']))

是問題。 您可能的意思是：

if(array_key_exists($_POST['dropdown'], $emails))

Answer 2

嘗試用isset替換array_key_exists ，看看是否適合您

if(isset($_POST['dropdown']))
{
    $recipient = $emails[$_POST['dropdown']];
    //send email to $recipient
}