PHP BackWPup_Job::need_free_memory方法代码示例

//.........这里部分代码省略.........
                         $wxr_post .= "\t\t\t<wp:comment_parent>" . $c->comment_parent . "</wp:comment_parent>\n";
                         $wxr_post .= "\t\t\t<wp:comment_user_id>" . $c->user_id . "</wp:comment_user_id>\n";
                         $c_meta = $wpdb->get_results($wpdb->prepare("SELECT * FROM {$wpdb->commentmeta} WHERE comment_id = %d", $c->comment_ID));
                         foreach ($c_meta as $meta) {
                             $wxr_post .= "\t\t\t<wp:commentmeta>\n\t\t\t\t<wp:meta_key>" . $meta->meta_key . "</wp:meta_key>\n\t\t\t\t<wp:meta_value>" . $this->wxr_cdata($meta->meta_value) . "</wp:meta_value>\n\t\t\t</wp:commentmeta>\n";
                         }
                         $wxr_post .= "\t\t</wp:comment>\n";
                     }
                     $wxr_post .= "\t</item>\n";
                     $job_object->substeps_done++;
                 }
                 $written = file_put_contents($job_object->steps_data[$job_object->step_working]['wpexportfile'], $wxr_post, FILE_APPEND);
                 if ($written === FALSE) {
                     $job_object->log(__('WP Export file could not written.', 'backwpup'), E_USER_ERROR);
                     return FALSE;
                 }
                 $job_object->do_restart_time();
             }
         }
         $written = file_put_contents($job_object->steps_data[$job_object->step_working]['wpexportfile'], "</channel>\n</rss>", FILE_APPEND);
         if ($written === FALSE) {
             $job_object->log(__('WP Export file could not written.', 'backwpup'), E_USER_ERROR);
             return FALSE;
         }
         $job_object->steps_data[$job_object->step_working]['substep'] = 'check';
         $job_object->substeps_done++;
         $job_object->update_working_data();
         $job_object->do_restart_time();
     }
     remove_filter('wxr_export_skip_postmeta', array($this, 'wxr_filter_postmeta'), 10);
     if ($job_object->steps_data[$job_object->step_working]['substep'] == 'check') {
         if (extension_loaded('simplexml') && class_exists('DOMDocument')) {
             $job_object->log(__('Check WP Export file&#160;&hellip;', 'backwpup'));
             $job_object->need_free_memory(filesize($job_object->steps_data[$job_object->step_working]['wpexportfile']) * 2);
             $valid = TRUE;
             $internal_errors = libxml_use_internal_errors(TRUE);
             $dom = new DOMDocument();
             $old_value = NULL;
             if (function_exists('libxml_disable_entity_loader')) {
                 $old_value = libxml_disable_entity_loader(TRUE);
             }
             $success = $dom->loadXML(file_get_contents($job_object->steps_data[$job_object->step_working]['wpexportfile']));
             if (!is_null($old_value)) {
                 libxml_disable_entity_loader($old_value);
             }
             if (!$success || isset($dom->doctype)) {
                 $errors = libxml_get_errors();
                 $valid = FALSE;
                 foreach ($errors as $error) {
                     switch ($error->level) {
                         case LIBXML_ERR_WARNING:
                             $job_object->log(E_USER_WARNING, sprintf(__('XML WARNING (%s): %s', 'backwpup'), $error->code, trim($error->message)), $job_object->steps_data[$job_object->step_working]['wpexportfile'], $error->line);
                             break;
                         case LIBXML_ERR_ERROR:
                             $job_object->log(E_USER_WARNING, sprintf(__('XML RECOVERABLE (%s): %s', 'backwpup'), $error->code, trim($error->message)), $job_object->steps_data[$job_object->step_working]['wpexportfile'], $error->line);
                             break;
                         case LIBXML_ERR_FATAL:
                             $job_object->log(E_USER_WARNING, sprintf(__('XML ERROR (%s): %s', 'backwpup'), $error->code, trim($error->message)), $job_object->steps_data[$job_object->step_working]['wpexportfile'], $error->line);
                             break;
                     }
                 }
             } else {
                 $xml = simplexml_import_dom($dom);
                 unset($dom);
                 // halt if loading produces an error
                 if (!$xml) {

 /**
  * @param $job_object
  * @return bool
  */
 public function job_run_archive(BackWPup_Job $job_object)
 {
     $job_object->substeps_todo = 1;
     $job_object->log(sprintf(__('%d. Try to send backup with email …', 'backwpup'), $job_object->steps_data[$job_object->step_working]['STEP_TRY']), E_USER_NOTICE);
     //check file Size
     if (!empty($job_object->job['emailefilesize'])) {
         if ($job_object->backup_filesize > $job_object->job['emailefilesize'] * 1024 * 1024) {
             $job_object->log(__('Backup archive too big to be sent by email!', 'backwpup'), E_USER_ERROR);
             $job_object->substeps_done = 1;
             return TRUE;
         }
     }
     $job_object->log(sprintf(__('Sending email to %s…', 'backwpup'), $job_object->job['emailaddress']), E_USER_NOTICE);
     //get mail settings
     $emailmethod = 'mail';
     $emailsendmail = '';
     $emailhost = '';
     $emailhostport = '';
     $emailsecure = '';
     $emailuser = '';
     $emailpass = '';
     if (empty($job_object->job['emailmethod'])) {
         //do so if i'm the wp_mail to get the settings
         global $phpmailer;
         // (Re)create it, if it's gone missing
         if (!is_object($phpmailer) || !$phpmailer instanceof PHPMailer) {
             require_once ABSPATH . WPINC . '/class-phpmailer.php';
             require_once ABSPATH . WPINC . '/class-smtp.php';
             $phpmailer = new PHPMailer(true);
         }
         //only if PHPMailer really used
         if (is_object($phpmailer)) {
             do_action_ref_array('phpmailer_init', array(&$phpmailer));
             //get settings from PHPMailer
             $emailmethod = $phpmailer->Mailer;
             $emailsendmail = $phpmailer->Sendmail;
             $emailhost = $phpmailer->Host;
             $emailhostport = $phpmailer->Port;
             $emailsecure = $phpmailer->SMTPSecure;
             $emailuser = $phpmailer->Username;
             $emailpass = $phpmailer->Password;
         }
     } else {
         $emailmethod = $job_object->job['emailmethod'];
         $emailsendmail = $job_object->job['emailsendmail'];
         $emailhost = $job_object->job['emailhost'];
         $emailhostport = $job_object->job['emailhostport'];
         $emailsecure = $job_object->job['emailsecure'];
         $emailuser = $job_object->job['emailuser'];
         $emailpass = BackWPup_Encryption::decrypt($job_object->job['emailpass']);
     }
     //Generate mail with Swift Mailer
     if (!class_exists('Swift', FALSE)) {
         require BackWPup::get_plugin_data('plugindir') . '/vendor/SwiftMailer/swift_required.php';
     }
     if (function_exists('mb_internal_encoding') && (int) ini_get('mbstring.func_overload') & 2) {
         $mbEncoding = mb_internal_encoding();
         mb_internal_encoding('ASCII');
     }
     try {
         //Set Temp dir for mailing
         Swift_Preferences::getInstance()->setTempDir(untrailingslashit(BackWPup::get_plugin_data('TEMP')))->setCacheType('disk');
         // Create the Transport
         if ($emailmethod == 'smtp') {
             $transport = Swift_SmtpTransport::newInstance($emailhost, $emailhostport);
             $transport->setUsername($emailuser);
             $transport->setPassword($emailpass);
             if ($emailsecure == 'ssl') {
                 $transport->setEncryption('ssl');
             }
             if ($emailsecure == 'tls') {
                 $transport->setEncryption('tls');
             }
         } elseif ($emailmethod == 'sendmail') {
             $transport = Swift_SendmailTransport::newInstance($emailsendmail);
         } else {
             $job_object->need_free_memory($job_object->backup_filesize * 8);
             $transport = Swift_MailTransport::newInstance();
         }
         // Create the Mailer using your created Transport
         $emailer = Swift_Mailer::newInstance($transport);
         // Create a message
         $message = Swift_Message::newInstance(sprintf(__('BackWPup archive from %1$s: %2$s', 'backwpup'), date_i18n('d-M-Y H:i', $job_object->start_time, TRUE), esc_attr($job_object->job['name'])));
         $message->setFrom(array($job_object->job['emailsndemail'] => $job_object->job['emailsndemailname']));
         $message->setTo(array($job_object->job['emailaddress']));
         $message->setBody(sprintf(__('Backup archive: %s', 'backwpup'), $job_object->backup_file), 'text/plain', strtolower(get_bloginfo('charset')));
         $message->attach(Swift_Attachment::fromPath($job_object->backup_folder . $job_object->backup_file, $job_object->get_mime_type($job_object->backup_folder . $job_object->backup_file)));
         // Send the message
         $result = $emailer->send($message);
     } catch (Exception $e) {
         $job_object->log('Swift Mailer: ' . $e->getMessage(), E_USER_ERROR);
     }
     if (isset($mbEncoding)) {
         mb_internal_encoding($mbEncoding);
     }
     if (!isset($result) || !$result) {
//.........这里部分代码省略.........