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authorAndrey Andreev <narf@devilix.net>2018-03-22 15:48:55 +0100
committerAndrey Andreev <narf@devilix.net>2018-03-22 15:48:55 +0100
commit71e647782764184e3aab4faffe6d99176758979f (patch)
tree74dbdd50a61cd5674915c144aca9ebbc00b235b8 /user_guide_src/source/libraries/email.rst
parentb12fbad77bd69ca0c7624a9094c29b7691ea6107 (diff)
[ci skip] 3.1.8 release
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-###########
-Email Class
-###########
-
-CodeIgniter's robust Email Class supports the following features:
-
-- Multiple Protocols: Mail, Sendmail, and SMTP
-- TLS and SSL Encryption for SMTP
-- Multiple recipients
-- CC and BCCs
-- HTML or Plaintext email
-- Attachments
-- Word wrapping
-- Priorities
-- BCC Batch Mode, enabling large email lists to be broken into small
- BCC batches.
-- Email Debugging tools
-
-.. contents::
- :local:
-
-.. raw:: html
-
- <div class="custom-index container"></div>
-
-***********************
-Using the Email Library
-***********************
-
-Sending Email
-=============
-
-Sending email is not only simple, but you can configure it on the fly or
-set your preferences in a config file.
-
-Here is a basic example demonstrating how you might send email. Note:
-This example assumes you are sending the email from one of your
-:doc:`controllers <../general/controllers>`.
-
-::
-
- $this->load->library('email');
-
- $this->email->from('your@example.com', 'Your Name');
- $this->email->to('someone@example.com');
- $this->email->cc('another@another-example.com');
- $this->email->bcc('them@their-example.com');
-
- $this->email->subject('Email Test');
- $this->email->message('Testing the email class.');
-
- $this->email->send();
-
-Setting Email Preferences
-=========================
-
-There are 21 different preferences available to tailor how your email
-messages are sent. You can either set them manually as described here,
-or automatically via preferences stored in your config file, described
-below:
-
-Preferences are set by passing an array of preference values to the
-email initialize method. Here is an example of how you might set some
-preferences::
-
- $config['protocol'] = 'sendmail';
- $config['mailpath'] = '/usr/sbin/sendmail';
- $config['charset'] = 'iso-8859-1';
- $config['wordwrap'] = TRUE;
-
- $this->email->initialize($config);
-
-.. note:: Most of the preferences have default values that will be used
- if you do not set them.
-
-Setting Email Preferences in a Config File
-------------------------------------------
-
-If you prefer not to set preferences using the above method, you can
-instead put them into a config file. Simply create a new file called the
-email.php, add the $config array in that file. Then save the file at
-config/email.php and it will be used automatically. You will NOT need to
-use the ``$this->email->initialize()`` method if you save your
-preferences in a config file.
-
-Email Preferences
-=================
-
-The following is a list of all the preferences that can be set when
-sending email.
-
-=================== ====================== ============================ =======================================================================
-Preference Default Value Options Description
-=================== ====================== ============================ =======================================================================
-**useragent** CodeIgniter None The "user agent".
-**protocol** mail mail, sendmail, or smtp The mail sending protocol.
-**mailpath** /usr/sbin/sendmail None The server path to Sendmail.
-**smtp_host** No Default None SMTP Server Address.
-**smtp_user** No Default None SMTP Username.
-**smtp_pass** No Default None SMTP Password.
-**smtp_port** 25 None SMTP Port.
-**smtp_timeout** 5 None SMTP Timeout (in seconds).
-**smtp_keepalive** FALSE TRUE or FALSE (boolean) Enable persistent SMTP connections.
-**smtp_crypto** No Default tls or ssl SMTP Encryption
-**wordwrap** TRUE TRUE or FALSE (boolean) Enable word-wrap.
-**wrapchars** 76 Character count to wrap at.
-**mailtype** text text or html Type of mail. If you send HTML email you must send it as a complete web
- page. Make sure you don't have any relative links or relative image
- paths otherwise they will not work.
-**charset** ``$config['charset']`` Character set (utf-8, iso-8859-1, etc.).
-**validate** FALSE TRUE or FALSE (boolean) Whether to validate the email address.
-**priority** 3 1, 2, 3, 4, 5 Email Priority. 1 = highest. 5 = lowest. 3 = normal.
-**crlf** \\n "\\r\\n" or "\\n" or "\\r" Newline character. (Use "\\r\\n" to comply with RFC 822).
-**newline** \\n "\\r\\n" or "\\n" or "\\r" Newline character. (Use "\\r\\n" to comply with RFC 822).
-**bcc_batch_mode** FALSE TRUE or FALSE (boolean) Enable BCC Batch Mode.
-**bcc_batch_size** 200 None Number of emails in each BCC batch.
-**dsn** FALSE TRUE or FALSE (boolean) Enable notify message from server
-=================== ====================== ============================ =======================================================================
-
-Overriding Word Wrapping
-========================
-
-If you have word wrapping enabled (recommended to comply with RFC 822)
-and you have a very long link in your email it can get wrapped too,
-causing it to become un-clickable by the person receiving it.
-CodeIgniter lets you manually override word wrapping within part of your
-message like this::
-
- The text of your email that
- gets wrapped normally.
-
- {unwrap}http://example.com/a_long_link_that_should_not_be_wrapped.html{/unwrap}
-
- More text that will be
- wrapped normally.
-
-
-Place the item you do not want word-wrapped between: {unwrap} {/unwrap}
-
-***************
-Class Reference
-***************
-
-.. php:class:: CI_Email
-
- .. php:method:: from($from[, $name = ''[, $return_path = NULL]])
-
- :param string $from: "From" e-mail address
- :param string $name: "From" display name
- :param string $return_path: Optional email address to redirect undelivered e-mail to
- :returns: CI_Email instance (method chaining)
- :rtype: CI_Email
-
- Sets the email address and name of the person sending the email::
-
- $this->email->from('you@example.com', 'Your Name');
-
- You can also set a Return-Path, to help redirect undelivered mail::
-
- $this->email->from('you@example.com', 'Your Name', 'returned_emails@example.com');
-
- .. note:: Return-Path can't be used if you've configured 'smtp' as
- your protocol.
-
- .. php:method:: reply_to($replyto[, $name = ''])
-
- :param string $replyto: E-mail address for replies
- :param string $name: Display name for the reply-to e-mail address
- :returns: CI_Email instance (method chaining)
- :rtype: CI_Email
-
- Sets the reply-to address. If the information is not provided the
- information in the :meth:from method is used. Example::
-
- $this->email->reply_to('you@example.com', 'Your Name');
-
- .. php:method:: to($to)
-
- :param mixed $to: Comma-delimited string or an array of e-mail addresses
- :returns: CI_Email instance (method chaining)
- :rtype: CI_Email
-
- Sets the email address(s) of the recipient(s). Can be a single e-mail,
- a comma-delimited list or an array::
-
- $this->email->to('someone@example.com');
-
- ::
-
- $this->email->to('one@example.com, two@example.com, three@example.com');
-
- ::
-
- $this->email->to(
- array('one@example.com', 'two@example.com', 'three@example.com')
- );
-
- .. php:method:: cc($cc)
-
- :param mixed $cc: Comma-delimited string or an array of e-mail addresses
- :returns: CI_Email instance (method chaining)
- :rtype: CI_Email
-
- Sets the CC email address(s). Just like the "to", can be a single e-mail,
- a comma-delimited list or an array.
-
- .. php:method:: bcc($bcc[, $limit = ''])
-
- :param mixed $bcc: Comma-delimited string or an array of e-mail addresses
- :param int $limit: Maximum number of e-mails to send per batch
- :returns: CI_Email instance (method chaining)
- :rtype: CI_Email
-
- Sets the BCC email address(s). Just like the ``to()`` method, can be a single
- e-mail, a comma-delimited list or an array.
-
- If ``$limit`` is set, "batch mode" will be enabled, which will send
- the emails to batches, with each batch not exceeding the specified
- ``$limit``.
-
- .. php:method:: subject($subject)
-
- :param string $subject: E-mail subject line
- :returns: CI_Email instance (method chaining)
- :rtype: CI_Email
-
- Sets the email subject::
-
- $this->email->subject('This is my subject');
-
- .. php:method:: message($body)
-
- :param string $body: E-mail message body
- :returns: CI_Email instance (method chaining)
- :rtype: CI_Email
-
- Sets the e-mail message body::
-
- $this->email->message('This is my message');
-
- .. php:method:: set_alt_message($str)
-
- :param string $str: Alternative e-mail message body
- :returns: CI_Email instance (method chaining)
- :rtype: CI_Email
-
- Sets the alternative e-mail message body::
-
- $this->email->set_alt_message('This is the alternative message');
-
- This is an optional message string which can be used if you send
- HTML formatted email. It lets you specify an alternative message
- with no HTML formatting which is added to the header string for
- people who do not accept HTML email. If you do not set your own
- message CodeIgniter will extract the message from your HTML email
- and strip the tags.
-
- .. php:method:: set_header($header, $value)
-
- :param string $header: Header name
- :param string $value: Header value
- :returns: CI_Email instance (method chaining)
- :rtype: CI_Email
-
- Appends additional headers to the e-mail::
-
- $this->email->set_header('Header1', 'Value1');
- $this->email->set_header('Header2', 'Value2');
-
- .. php:method:: clear([$clear_attachments = FALSE])
-
- :param bool $clear_attachments: Whether or not to clear attachments
- :returns: CI_Email instance (method chaining)
- :rtype: CI_Email
-
- Initializes all the email variables to an empty state. This method
- is intended for use if you run the email sending method in a loop,
- permitting the data to be reset between cycles.
-
- ::
-
- foreach ($list as $name => $address)
- {
- $this->email->clear();
-
- $this->email->to($address);
- $this->email->from('your@example.com');
- $this->email->subject('Here is your info '.$name);
- $this->email->message('Hi '.$name.' Here is the info you requested.');
- $this->email->send();
- }
-
- If you set the parameter to TRUE any attachments will be cleared as
- well::
-
- $this->email->clear(TRUE);
-
- .. php:method:: send([$auto_clear = TRUE])
-
- :param bool $auto_clear: Whether to clear message data automatically
- :returns: TRUE on success, FALSE on failure
- :rtype: bool
-
- The e-mail sending method. Returns boolean TRUE or FALSE based on
- success or failure, enabling it to be used conditionally::
-
- if ( ! $this->email->send())
- {
- // Generate error
- }
-
- This method will automatically clear all parameters if the request was
- successful. To stop this behaviour pass FALSE::
-
- if ($this->email->send(FALSE))
- {
- // Parameters won't be cleared
- }
-
- .. note:: In order to use the ``print_debugger()`` method, you need
- to avoid clearing the email parameters.
-
- .. php:method:: attach($filename[, $disposition = ''[, $newname = NULL[, $mime = '']]])
-
- :param string $filename: File name
- :param string $disposition: 'disposition' of the attachment. Most
- email clients make their own decision regardless of the MIME
- specification used here. https://www.iana.org/assignments/cont-disp/cont-disp.xhtml
- :param string $newname: Custom file name to use in the e-mail
- :param string $mime: MIME type to use (useful for buffered data)
- :returns: CI_Email instance (method chaining)
- :rtype: CI_Email
-
- Enables you to send an attachment. Put the file path/name in the first
- parameter. For multiple attachments use the method multiple times.
- For example::
-
- $this->email->attach('/path/to/photo1.jpg');
- $this->email->attach('/path/to/photo2.jpg');
- $this->email->attach('/path/to/photo3.jpg');
-
- To use the default disposition (attachment), leave the second parameter blank,
- otherwise use a custom disposition::
-
- $this->email->attach('image.jpg', 'inline');
-
- You can also use a URL::
-
- $this->email->attach('http://example.com/filename.pdf');
-
- If you'd like to use a custom file name, you can use the third parameter::
-
- $this->email->attach('filename.pdf', 'attachment', 'report.pdf');
-
- If you need to use a buffer string instead of a real - physical - file you can
- use the first parameter as buffer, the third parameter as file name and the fourth
- parameter as mime-type::
-
- $this->email->attach($buffer, 'attachment', 'report.pdf', 'application/pdf');
-
- .. php:method:: attachment_cid($filename)
-
- :param string $filename: Existing attachment filename
- :returns: Attachment Content-ID or FALSE if not found
- :rtype: string
-
- Sets and returns an attachment's Content-ID, which enables your to embed an inline
- (picture) attachment into HTML. First parameter must be the already attached file name.
- ::
-
- $filename = '/img/photo1.jpg';
- $this->email->attach($filename);
- foreach ($list as $address)
- {
- $this->email->to($address);
- $cid = $this->email->attachment_cid($filename);
- $this->email->message('<img src="cid:'. $cid .'" alt="photo1" />');
- $this->email->send();
- }
-
- .. note:: Content-ID for each e-mail must be re-created for it to be unique.
-
- .. php:method:: print_debugger([$include = array('headers', 'subject', 'body')])
-
- :param array $include: Which parts of the message to print out
- :returns: Formatted debug data
- :rtype: string
-
- Returns a string containing any server messages, the email headers, and
- the email message. Useful for debugging.
-
- You can optionally specify which parts of the message should be printed.
- Valid options are: **headers**, **subject**, **body**.
-
- Example::
-
- // You need to pass FALSE while sending in order for the email data
- // to not be cleared - if that happens, print_debugger() would have
- // nothing to output.
- $this->email->send(FALSE);
-
- // Will only print the email headers, excluding the message subject and body
- $this->email->print_debugger(array('headers'));
-
- .. note:: By default, all of the raw data will be printed. \ No newline at end of file