[英]Generate Unique Code/ID In Contact form ? PHP/Ajax
您好,所以我有聯系表格,一切正常,我現在想要做的就是讓PHP生成唯一的代碼/標識,例如“ 002302103”,並在提交電子郵件時將其附加到電子郵件中。 基本上,每次使用表格時都會生成一個隨機參考號,並且該隨機數集也會與電子郵件一起發送。 有人知道我該怎么做嗎?
這是我的PHP代碼:
<?php
if($_POST)
{
$to_Email = "MyEmail@Email.com";
$subject = 'Message from my website'; //Subject line for emails
//check if its an ajax request, exit if not
if(!isset($_SERVER['HTTP_X_REQUESTED_WITH']) AND strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) != 'xmlhttprequest') {
//exit script outputting json data
$output = json_encode(
array(
'type'=>'error',
'text' => 'Request must come from Ajax'
));
die($output);
}
//check $_POST vars are set, exit if any missing
if(!isset($_POST["userName"]) || !isset($_POST["userEmail"]) || !isset($_POST["userMessage"]))
{
$output = json_encode(array('type'=>'error', 'text' => 'Input fields are empty!'));
die($output);
}
//Sanitize input data using PHP filter_var().
$user_Name = filter_var($_POST["userName"], FILTER_SANITIZE_STRING);
$user_Email = filter_var($_POST["userEmail"], FILTER_SANITIZE_EMAIL);
$user_Message = filter_var($_POST["userMessage"], FILTER_SANITIZE_STRING);
$user_Message = str_replace("\'", "'", $user_Message);
$user_Message = str_replace("'", "'", $user_Message);
//additional php validation
if(strlen($user_Name)<4) // If length is less than 4 it will throw an HTTP error.
{
$output = json_encode(array('type'=>'error', 'text' => 'Name is too short or empty!'));
die($output);
}
if(!filter_var($user_Email, FILTER_VALIDATE_EMAIL)) //email validation
{
$output = json_encode(array('type'=>'error', 'text' => 'Please enter a valid email!'));
die($output);
}
if(strlen($user_Message)<5) //check emtpy message
{
$output = json_encode(array('type'=>'error', 'text' => 'Too short message! Please enter something.'));
die($output);
}
//proceed with PHP email.
$headers = 'From: '.$user_Email.'' . "\r\n" .
'Reply-To: '.$user_Email.'' . "\r\n" .
'X-Mailer: PHP/' . phpversion();
$sentMail = @mail($to_Email, $subject, $user_Message . "\r\n\n" .'-- '.$user_Name. "\r\n" .'-- '.$user_Email, $headers);
if(!$sentMail)
{
$output = json_encode(array('type'=>'error', 'text' => 'Could not send mail! Please check your PHP mail configuration.'));
die($output);
}else{
$output = json_encode(array('type'=>'message', 'text' => 'Hi '.$user_Name .'! Thank you for your email'));
die($output);
}
}
?>
在此先感謝您幫助/指出正確的方向
如前所述,使用time()
將為您提供一種創建唯一ID的可排序方式。 串聯字符串還可以進一步隨機化所需的結果,並保持其可排序性:
$uniqueId= time().mt_rand();
嘗試這樣的事情:
echo mt_rand() . "\n";
echo mt_rand() . "\n";
其輸出為:
1604716014
1478613278
將此附加到您的消息,例如:
$subject = 'Message from my website - '.$mt_rand();
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