小猫咪邮件在线发送系统源码v1.1，支持添加附件

<?php /** * PHPMailer - PHP email creation and transport class. * PHP Version 5.5. * * @see https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project * * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk> * @author Jim Jagielski (jimjag) <jimjag@gmail.com> * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net> * @author Brent R. Matzelle (original founder) * @copyright 2012 - 2020 Marcus Bointon * @copyright 2010 - 2012 Jim Jagielski * @copyright 2004 - 2009 Andy Prevost * @license https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License * @note This program is distributed in the hope that it will be useful - WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. */ namespace PHPMailer\PHPMailer; /** * PHPMailer - PHP email creation and transport class. * * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk> * @author Jim Jagielski (jimjag) <jimjag@gmail.com> * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net> * @author Brent R. Matzelle (original founder) */ class PHPMailer { const CHARSET_ASCII = 'us-ascii'; const CHARSET_ISO88591 = 'iso-8859-1'; const CHARSET_UTF8 = 'utf-8'; const CONTENT_TYPE_PLAINTEXT = 'text/plain'; const CONTENT_TYPE_TEXT_CALENDAR = 'text/calendar'; const CONTENT_TYPE_TEXT_HTML = 'text/html'; const CONTENT_TYPE_MULTIPART_ALTERNATIVE = 'multipart/alternative'; const CONTENT_TYPE_MULTIPART_MIXED = 'multipart/mixed'; const CONTENT_TYPE_MULTIPART_RELATED = 'multipart/related'; const ENCODING_7BIT = '7bit'; const ENCODING_8BIT = '8bit'; const ENCODING_BASE64 = 'base64'; const ENCODING_BINARY = 'binary'; const ENCODING_QUOTED_PRINTABLE = 'quoted-printable'; const ENCRYPTION_STARTTLS = 'tls'; const ENCRYPTION_SMTPS = 'ssl'; const ICAL_METHOD_REQUEST = 'REQUEST'; const ICAL_METHOD_PUBLISH = 'PUBLISH'; const ICAL_METHOD_REPLY = 'REPLY'; const ICAL_METHOD_ADD = 'ADD'; const ICAL_METHOD_CANCEL = 'CANCEL'; const ICAL_METHOD_REFRESH = 'REFRESH'; const ICAL_METHOD_COUNTER = 'COUNTER'; const ICAL_METHOD_DECLINECOUNTER = 'DECLINECOUNTER'; /** * Email priority. * Options: null (default), 1 = High, 3 = Normal, 5 = low. * When null, the header is not set at all. * * @var int|null */ public $Priority; /** * The character set of the message. * * @var string */ public $CharSet = self::CHARSET_ISO88591; /** * The MIME Content-type of the message. * * @var string */ public $ContentType = self::CONTENT_TYPE_PLAINTEXT; /** * The message encoding. * Options: "8bit", "7bit", "binary", "base64", and "quoted-printable". * * @var string */ public $Encoding = self::ENCODING_8BIT; /** * Holds the most recent mailer error message. * * @var string */ public $ErrorInfo = ''; /** * The From email address for the message. * * @var string */ public $From = ''; /** * The From name of the message. * * @var string */ public $FromName = ''; /** * The envelope sender of the message. * This will usually be turned into a Return-Path header by the receiver, * and is the address that bounces will be sent to. * If not empty, will be passed via `-f` to sendmail or as the 'MAIL FROM' value over SMTP. * * @var string */ public $Sender = ''; /** * The Subject of the message. * * @var string */ public $Subject = ''; /** * An HTML or plain text message body. * If HTML then call isHTML(true). * * @var string */ public $Body = ''; /** * The plain-text message body. * This body can be read by mail clients that do not have HTML email * capability such as mutt & Eudora. * Clients that can read HTML will view the normal Body. * * @var string */ public $AltBody = ''; /** * An iCal message part body. * Only supported in simple alt or alt_inline message types * To generate iCal event structures, use classes like EasyPeasyICS or iCalcreator. * * @see https://kigkonsult.se/iCalcreator/ * * @var string */ public $Ical = ''; /** * Value-array of "method" in Contenttype header "text/calendar" * * @var string[] */ protected static $IcalMethods = [ self::ICAL_METHOD_REQUEST, self::ICAL_METHOD_PUBLISH, self::ICAL_METHOD_REPLY, self::ICAL_METHOD_ADD, self::ICAL_METHOD_CANCEL, self::ICAL_METHOD_REFRESH, self::ICAL_METHOD_COUNTER, self::ICAL_METHOD_DECLINECOUNTER, ]; /** * The complete compiled MIME message body. * * @var string */ protected $MIMEBody = ''; /** * The complete compiled MIME message headers. * * @var string */ protected $MIMEHeader = ''; /** * Extra headers that createHeader() doesn't fold in. * * @var string */ protected $mailHeader = ''; /** * Word-wrap the message body to this number of chars. * Set to 0 to not wrap. A useful value here is 78, for RFC2822 section 2.1.1 compliance. * * @see static::STD_LINE_LENGTH * * @var int */ public $WordWrap = 0; /** * Which method to use to send mail. * Options: "mail", "sendmail", or "smtp". * * @var string */ public $Mailer = 'mail'; /** * The path to the sendmail program. * * @var string */ public $Sendmail = '/usr/sbin/sendmail'; /** * Whether mail() uses a fully sendmail-compatible MTA. * One which supports sendmail's "-oi -f" options. * * @var bool */ public $UseSendmailOptions = true; /** * The email address that a reading confirmation should be sent to, also known as read receipt. * * @var string */ public $ConfirmReadingTo = ''; /** * The hostname to use in the Message-ID header and as default HELO string. * If empty, PHPMailer attempts to find one with, in order, * $_SERVER['SERVER_NAME'], gethostname(), php_uname('n'), or the value * 'localhost.localdomain'. * * @see PHPMailer::$Helo * * @var string */ public $Hostname = ''; /** * An ID to be used in the Message-ID header. * If empty, a unique id will be generated. * You can set your own, but it must be in the format "<id@domain>", * as defined in RFC5322 section 3.6.4 or it will be ignored. * * @see https://tools.ietf.org/html/rfc5322#section-3.6.4 * * @var string */ public $MessageID = ''; /** * The message Date to be used in the Date header. * If empty, the current date will be added. * * @var string */ public $MessageDate = ''; /** * SMTP hosts. * Either a single hostname or multiple semicolon-delimited hostnames. * You can also specify a different port * for each host by using this format: [hostname:port] * (e.g. "smtp1.example.com:25;smtp2.example.com"). * You can also specify encryption type, for example: * (e.g. "tls://smtp1.example.com:587;ssl://smtp2.example.com:465"). * Hosts will be tried in order. * * @var string */ public $Host = 'localhost'; /** * The default SMTP server port. * * @var int */ public $Port = 25; /** * The SMTP HELO/EHLO name used for the SMTP connection. * Default is $Hostname. If $Hostname is empty, PHPMailer attempts to find * one with the same method described above for $Hostname. * * @see PHPMailer::$Ho