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我有一个脚本，用于发送存储在会话中的信息的电子邮件 - 信息是从用户填写的表单收集的。 （形式“动作”是指向下面的代码）PHP发送电子邮件多次发送电子邮件
然而，当点击两次的形式例如在当提交按钮时，2名的电子邮件的发送和点击3次时，3个电子邮件被发送。
我想确保只有1封电子邮件被发送，如果任何会话是空的没有电子邮件发送：
<?php
session_start();
if(isset($_POST['email'])) {
$email_to = "[email protected]";
$email_subject = "My Subject";
$machine = implode(",", $_SESSION['machinesesh']); //required
$machine_type = implode(" ", $_SESSION['typesesh']);; // required
$address = $_SESSION['addresssesh']; //required
$county = $_SESSION['countysesh']; //required
$postcode = $_SESSION['postcodesesh']; //required
$workplace = implode(', ', $_SESSION['worksesh']); //required
$serving = implode(', ', $_SESSION['peoplesesh']);
$company_name = $_SESSION['namesesh']; // required
$visitorname = $_POST['yourname']; // required
$email_from = $_POST['email']; // required
$telephone = $_POST['telephone']; // not required
$email_message = "New email alert .\n\n";
function clean_string($string) {
$bad = array("content-type","bcc:","to:","cc:","href");
return str_replace($bad,"",$string);
}
$email_message .= "Name: ".clean_string($visitorname)."\n";
$email_message .= "Company: ".clean_string($company_name)."\n";
$email_message .= "Address Line 1: ".clean_string($address)."\n";
$email_message .= "County: ".clean_string($county)."\n";
$email_message .= "Postcode: ".clean_string($postcode)."\n";
$email_message .= "Machine(s) Wanted: ".clean_string($machine)."\n";
$email_message .= "Environment: ".clean_string($workplace)."\n";
$email_message .= "Serving: ".clean_string($serving)."\n";
$email_message .= "Email: ".clean_string($email_from)."\n";
$email_message .= "Telephone: ".clean_string($telephone)."\n";
// create email headers
$headers = 'From: [email protected]' . "\r\n".
'Reply-To: '.$email_from."\r\n" .
'X-Mailer: PHP/' . phpversion();
@mail($email_to, $email_subject, $email_message, $headers);
header("Location: http://www.example.com?tag=$machine");
?>
您可以为会话添加一个计数器变量，如果它为空/ 0 /未设置，请发送电子邮件。否则，不要。 – Antony
它发送三次（三次点击），无需重新加载或重定向？ – Progrock
类似：http://stackoverflow.com/questions/4614052/how-to-prevent-multiple-form-submission-on-multiple-clicks-in-php – Progrock