Objeto para envio de e-mail
Publicado por Sidiney Sodré Gali de Souza 01/12/2005
[ Hits: 5.043 ]
Uma classe completa para envio de e-mail.
Muito fácil de entender.
Tem código pronto para envio de mensagem com arquivo anexo.
É isso ae!
<?php class email { var $html; var $text; var $output; var $html_text; var $html_images; var $image_types; var $build_params; var $attachments; var $headers; function email($headers = '') { if ($headers == '') $headers = array(); $this->html_images = array(); $this->headers = array(); if (EMAIL_LINEFEED == 'CRLF') { $this->lf = "\r\n"; } else { $this->lf = "\n"; } /** * If you want the auto load functionality * to find other mime-image/file types, add the * extension and content type here. */ $this->image_types = array('gif' => 'image/gif', 'jpg' => 'image/jpeg', 'jpeg' => 'image/jpeg', 'jpe' => 'image/jpeg', 'bmp' => 'image/bmp', 'png' => 'image/png', 'tif' => 'image/tiff', 'tiff' => 'image/tiff', 'swf' => 'application/x-shockwave-flash'); $this->build_params['html_encoding'] = 'quoted-printable'; $this->build_params['text_encoding'] = '7bit'; $this->build_params['html_charset'] = constant('CHARSET'); $this->build_params['text_charset'] = constant('CHARSET'); $this->build_params['text_wrap'] = 998; /** * Make sure the MIME version header is first. */ $this->headers[] = 'MIME-Version: 1.0'; reset($headers); while (list(,$value) = each($headers)) { if (tep_not_null($value)) { $this->headers[] = $value; } } } /** * This function will read a file in * from a supplied filename and return * it. This can then be given as the first * argument of the the functions * add_html_image() or add_attachment(). */ function get_file($filename) { $return = ''; if ($fp = fopen($filename, 'rb')) { while (!feof($fp)) { $return .= fread($fp, 1024); } fclose($fp); return $return; } else { return false; } } /** * Function for extracting images from * html source. This function will look * through the html code supplied by add_html() * and find any file that ends in one of the * extensions defined in $obj->image_types. * If the file exists it will read it in and * embed it, (not an attachment). * * Function contributed by Dan Allen */ function find_html_images($images_dir) { // Build the list of image extensions while (list($key, ) = each($this->image_types)) { $extensions[] = $key; } preg_match_all('/"([^"]+\.(' . implode('|', $extensions).'))"/Ui', $this->html, $images); for ($i=0; $i<count($images[1]); $i++) { if (file_exists($images_dir . $images[1][$i])) { $html_images[] = $images[1][$i]; $this->html = str_replace($images[1][$i], basename($images[1][$i]), $this->html); } } if (tep_not_null($html_images)) { // If duplicate images are embedded, they may show up as attachments, so remove them. $html_images = array_unique($html_images); sort($html_images); for ($i=0; $i<count($html_images); $i++) { if ($image = $this->get_file($images_dir . $html_images[$i])) { $content_type = $this->image_types[substr($html_images[$i], strrpos($html_images[$i], '.') + 1)]; $this->add_html_image($image, basename($html_images[$i]), $content_type); } } } } /** * Adds plain text. Use this function * when NOT sending html email */ function add_text($text = '') { $this->text = tep_convert_linefeeds(array("\r\n", "\n", "\r"), $this->lf, $text); } /** * Adds a html part to the mail. * Also replaces image names with * content-id's. */ function add_html($html, $text = NULL, $images_dir = NULL) { $this->html = tep_convert_linefeeds(array("\r\n", "\n", "\r"), '<br />', $html); $this->html_text = tep_convert_linefeeds(array("\r\n", "\n", "\r"), $this->lf, $text); if (isset($images_dir)) $this->find_html_images($images_dir); } /** * Adds an image to the list of embedded * images. */ function add_html_image($file, $name = '', $c_type='application/octet-stream') { $this->html_images[] = array('body' => $file, 'name' => $name, 'c_type' => $c_type, 'cid' => md5(uniqid(time()))); } /** * Adds a file to the list of attachments. */ function add_attachment($file, $name = '', $c_type='application/octet-stream', $encoding = 'base64') { $this->attachments[] = array('body' => $file, 'name' => $name, 'c_type' => $c_type, 'encoding' => $encoding); } /** * Adds a text subpart to a mime_part object */ /* HPDL PHP3 */ // function &add_text_part(&$obj, $text) { function add_text_part(&$obj, $text) { $params['content_type'] = 'text/plain'; $params['encoding'] = $this->build_params['text_encoding']; $params['charset'] = $this->build_params['text_charset']; if (is_object($obj)) { return $obj->addSubpart($text, $params); } else { return new mime($text, $params); } } /** * Adds a html subpart to a mime_part object */ /* HPDL PHP3 */ // function &add_html_part(&$obj) { function add_html_part(&$obj) { $params['content_type'] = 'text/html'; $params['encoding'] = $this->build_params['html_encoding']; $params['charset'] = $this->build_params['html_charset']; if (is_object($obj)) { return $obj->addSubpart($this->html, $params); } else { return new mime($this->html, $params); } } /** * Starts a message with a mixed part */ /* HPDL PHP3 */ // function &add_mixed_part() { function add_mixed_part() { $params['content_type'] = 'multipart/mixed'; return new mime('', $params); } /** * Adds an alternative part to a mime_part object */ /* HPDL PHP3 */ // function &add_alternative_part(&$obj) { function add_alternative_part(&$obj) { $params['content_type'] = 'multipart/alternative'; if (is_object($obj)) { return $obj->addSubpart('', $params); } else { return new mime('', $params); } } /** * Adds a html subpart to a mime_part object */ /* HPDL PHP3 */ // function &add_related_part(&$obj) { function add_related_part(&$obj) { $params['content_type'] = 'multipart/related'; if (is_object($obj)) { return $obj->addSubpart('', $params); } else { return new mime('', $params); } } /** * Adds an html image subpart to a mime_part object */ /* HPDL PHP3 */ // function &add_html_image_part(&$obj, $value) { function add_html_image_part(&$obj, $value) { $params['content_type'] = $value['c_type']; $params['encoding'] = 'base64'; $params['disposition'] = 'inline'; $params['dfilename'] = $value['name']; $params['cid'] = $value['cid']; $obj->addSubpart($value['body'], $params); } /** * Adds an attachment subpart to a mime_part object */ /* HPDL PHP3 */ // function &add_attachment_part(&$obj, $value) { function add_attachment_part(&$obj, $value) { $params['content_type'] = $value['c_type']; $params['encoding'] = $value['encoding']; $params['disposition'] = 'attachment'; $params['dfilename'] = $value['name']; $obj->addSubpart($value['body'], $params); } /** * Builds the multipart message from the * list ($this->_parts). $params is an * array of parameters that shape the building * of the message. Currently supported are: * * $params['html_encoding'] - The type of encoding to use on html. Valid options are * "7bit", "quoted-printable" or "base64" (all without quotes). * 7bit is EXPRESSLY NOT RECOMMENDED. Default is quoted-printable * $params['text_encoding'] - The type of encoding to use on plain text Valid options are * "7bit", "quoted-printable" or "base64" (all without quotes). * Default is 7bit * $params['text_wrap'] - The character count at which to wrap 7bit encoded data. * Default this is 998. * $params['html_charset'] - The character set to use for a html section. * Default is iso-8859-1 * $params['text_charset'] - The character set to use for a text section. * - Default is iso-8859-1 */ /* HPDL PHP3 */ // function build_message($params = array()) { function build_message($params = '') { if ($params == '') $params = array(); if (count($params) > 0) { reset($params); while(list($key, $value) = each($params)) { $this->build_params[$key] = $value; } } if (tep_not_null($this->html_images)) { reset($this->html_images); while (list(,$value) = each($this->html_images)) { $this->html = str_replace($value['name'], 'cid:' . $value['cid'], $this->html); } } $null = NULL; $attachments = ((tep_not_null($this->attachments)) ? true : false); $html_images = ((tep_not_null($this->html_images)) ? true : false); $html = ((tep_not_null($this->html)) ? true : false); $text = ((tep_not_null($this->text)) ? true : false); switch (true) { case (($text == true) && ($attachments == false)): /* HPDL PHP3 */ // $message =& $this->add_text_part($null, $this->text); $message = $this->add_text_part($null, $this->text); break; case (($text == false) && ($attachments == true) && ($html == false)): /* HPDL PHP3 */ // $message =& $this->add_mixed_part(); $message = $this->add_mixed_part(); for ($i=0; $i<count($this->attachments); $i++) { $this->add_attachment_part($message, $this->attachments[$i]); } break; case (($text == true) && ($attachments == true)): /* HPDL PHP3 */ // $message =& $this->add_mixed_part(); $message = $this->add_mixed_part(); $this->add_text_part($message, $this->text); for ($i=0; $i<count($this->attachments); $i++) { $this->add_attachment_part($message, $this->attachments[$i]); } break; case (($html == true) && ($attachments == false) && ($html_images == false)): if (tep_not_null($this->html_text)) { /* HPDL PHP3 */ // $message =& $this->add_alternative_part($null); $message = $this->add_alternative_part($null); $this->add_text_part($message, $this->html_text); $this->add_html_part($message); } else { /* HPDL PHP3 */ // $message =& $this->add_html_part($null); $message = $this->add_html_part($null); } break; case (($html == true) && ($attachments == false) && ($html_images == true)): if (tep_not_null($this->html_text)) { /* HPDL PHP3 */ // $message =& $this->add_alternative_part($null); $message = $this->add_alternative_part($null); $this->add_text_part($message, $this->html_text); /* HPDL PHP3 */ // $related =& $this->add_related_part($message); $related = $this->add_related_part($message); } else { /* HPDL PHP3 */ // $message =& $this->add_related_part($null); // $related =& $message; $message = $this->add_related_part($null); $related = $message; } $this->add_html_part($related); for ($i=0; $i<count($this->html_images); $i++) { $this->add_html_image_part($related, $this->html_images[$i]); } break; case (($html == true) && ($attachments == true) && ($html_images == false)): /* HPDL PHP3 */ // $message =& $this->add_mixed_part(); $message = $this->add_mixed_part(); if (tep_not_null($this->html_text)) { /* HPDL PHP3 */ // $alt =& $this->add_alternative_part($message); $alt = $this->add_alternative_part($message); $this->add_text_part($alt, $this->html_text); $this->add_html_part($alt); } else { $this->add_html_part($message); } for ($i=0; $i<count($this->attachments); $i++) { $this->add_attachment_part($message, $this->attachments[$i]); } break; case (($html == true) && ($attachments == true) && ($html_images == true)): /* HPDL PHP3 */ // $message =& $this->add_mixed_part(); $message = $this->add_mixed_part(); if (tep_not_null($this->html_text)) { /* HPDL PHP3 */ // $alt =& $this->add_alternative_part($message); $alt = $this->add_alternative_part($message); $this->add_text_part($alt, $this->html_text); /* HPDL PHP3 */ // $rel =& $this->add_related_part($alt); $rel = $this->add_related_part($alt); } else { /* HPDL PHP3 */ // $rel =& $this->add_related_part($message); $rel = $this->add_related_part($message); } $this->add_html_part($rel); for ($i=0; $i<count($this->html_images); $i++) { $this->add_html_image_part($rel, $this->html_images[$i]); } for ($i=0; $i<count($this->attachments); $i++) { $this->add_attachment_part($message, $this->attachments[$i]); } break; } if ( (isset($message)) && (is_object($message)) ) { $output = $message->encode(); $this->output = $output['body']; reset($output['headers']); while (list($key, $value) = each($output['headers'])) { $headers[] = $key . ': ' . $value; } $this->headers = array_merge($this->headers, $headers); return true; } else { return false; } } /** * Sends the mail. */ function send($to_name, $to_addr, $from_name, $from_addr, $subject = '', $headers = '') { $to = (($to_name != '') ? '"' . $to_name . '" <' . $to_addr . '>' : $to_addr); $from = (($from_name != '') ? '"' . $from_name . '" <' . $from_addr . '>' : $from_addr); if (is_string($headers)) { $headers = explode($this->lf, trim($headers)); } for ($i=0; $i<count($headers); $i++) { if (is_array($headers[$i])) { for ($j=0; $j<count($headers[$i]); $j++) { if ($headers[$i][$j] != '') { $xtra_headers[] = $headers[$i][$j]; } } } if ($headers[$i] != '') { $xtra_headers[] = $headers[$i]; } } if (!isset($xtra_headers)) { $xtra_headers = array(); } if (EMAIL_TRANSPORT == 'smtp') { return mail($to_addr, $subject, $this->output, 'From: ' . $from . $this->lf . 'To: ' . $to . $this->lf . implode($this->lf, $this->headers) . $this->lf . implode($this->lf, $xtra_headers)); } else { return mail($to, $subject, $this->output, 'From: '.$from.$this->lf.implode($this->lf, $this->headers).$this->lf.implode($this->lf, $xtra_headers)); } } /** * Use this method to return the email * in message/rfc822 format. Useful for * adding an email to another email as * an attachment. there's a commented * out example in example.php. * * string get_rfc822(string To name, * string To email, * string From name, * string From email, * [string Subject, * string Extra headers]) */ function get_rfc822($to_name, $to_addr, $from_name, $from_addr, $subject = '', $headers = '') { // Make up the date header as according to RFC822 $date = 'Date: ' . date('D, d M y H:i:s'); $to = (($to_name != '') ? 'To: "' . $to_name . '" <' . $to_addr . '>' : 'To: ' . $to_addr); $from = (($from_name != '') ? 'From: "' . $from_name . '" <' . $from_addr . '>' : 'From: ' . $from_addr); if (is_string($subject)) { $subject = 'Subject: ' . $subject; } if (is_string($headers)) { $headers = explode($this->lf, trim($headers)); } for ($i=0; $i<count($headers); $i++) { if (is_array($headers[$i])) { for ($j=0; $j<count($headers[$i]); $j++) { if ($headers[$i][$j] != '') { $xtra_headers[] = $headers[$i][$j]; } } } if ($headers[$i] != '') { $xtra_headers[] = $headers[$i]; } } if (!isset($xtra_headers)) { $xtra_headers = array(); } $headers = array_merge($this->headers, $xtra_headers); return $date . $this->lf . $from . $this->lf . $to . $this->lf . $subject . $this->lf . implode($this->lf, $headers) . $this->lf . $this->lf . $this->output; } } ?>
Classe utilitária para enviar emails com PHP através da função mail
Envio de newsletter com imagens, formatação de textos personalizada e validação de email
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