第一封邮件只发给我，第二封给我和抄送。没有密件抄送。
电子邮件代码：
$to = 'to@email.com';
$subject = 'Email';
$message = '<html><body><p>Hello from me!<br>';
$headers = 'MIME-Version: 1.0' . "\r\n";
$headers = $headers . 'Content-type: text/html; charset=iso-8859-1' . "\r\n";
$headers = $headers . 'From: from@email.com' . "\r\n";
$headers = $headers . 'Reply-To: from@email.com' . "\r\n";
$headers = $headers . 'CC: cc@email.com' . "\r\n";
mail($to, $subject, $message, $headers);
如您所见，只有一个抄送和一个“收件人”地址。我不认为这是 PHP.ini 文件：
[PHP]
engine = On
max_execution_time = 60 ;
Maximum execution time of each script, in seconds
max_input_time = 120 ;
Maximum amount of time each script may spend parsing request data
memory_limit = 128M ;
Maximum amount of memory a script may consume (8MB)
post_max_size = 150M
default_mimetype = "text/html"
default_charset = "UTF-8"
file_uploads = On
upload_max_filesize = 150M
allow_url_fopen = On
user_agent="PHP"
default_socket_timeout = 60
cgi.fix_pathinfo = 1
cgi.fix_pathinfo = 1
但它就在那里。为什么我要双打？