我有一个 PHP 函数来发送电子邮件，
function sendemail($email_to,$email_from,$email_subject,$email_body,$email_replyto,$cc)
{
if(filter_var($email_to, FILTER_VALIDATE_EMAIL))
{
require_once "/usr/local/lib/php/Mail.php";
$from = $email_from;
$to = $email_to;
$subject = $email_subject;
$body = $email_body;
$host = "mail.domain.co.uk";
$username = "[email protected] /cdn-cgi/l/email-protection";
$password = "********";
$headers = array ('From' => $from,
'To' => $to,
'Cc' => $cc,
'Subject' => $subject,
'Content-type' => 'text/html');
$smtp = Mail::factory('smtp',
array ('host' => $host,
'auth' => true,
'username' => $username,
'password' => $password));
$rec = $to.', '.$cc;
$mail = $smtp->send($rec, $headers, $body, $cc);
}
}
当我调用该函数时，有时没有$cc变量所以我收到一条警告说Missing argument 6 for sendemail(),
如果 $cc 无效，停止警告的最佳方法是什么？
如果您编写了该函数，则可以将第 6 个参数设为可选：
function sendemail($email_to, $email_from, $email_subject, $email_body, $email_replyto, $cc = null) {
if ($cc !== null) {
// add cc headers, e.g.
// $headers['Cc'] = $cc;
}
}
然后您可以选择忽略此参数：
sendemail("[email protected] /cdn-cgi/l/email-protection", "[email protected] /cdn-cgi/l/email-protection", "subject", "body", "[email protected] /cdn-cgi/l/email-protection");
sendemail("[email protected] /cdn-cgi/l/email-protection", "[email protected] /cdn-cgi/l/email-protection", "subject", "body", "[email protected] /cdn-cgi/l/email-protection", "[email protected] /cdn-cgi/l/email-protection");
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