!empty($attach) and attach_big_insert($attach); $attachlist = $imagelist = $filelist = ''; $images = 0; $files = 0; // 处理不在 message 中的图片，删除掉没有插入的附件 if ($message) { // 只有评论会传pid list($attachlist, $imagelist, $filelist) = $pid ? well_attach_find_by_pid($pid) : well_attach_find_by_tid($tid); if (!empty($imagelist)) { $aids = array(); foreach ($imagelist as $key => $attach) { $image_url = $conf['upload_url'] . 'website_attach/' . $attach['filename']; if (FALSE === strpos($message, $image_url)) { unset($attachlist[$attach['aid']], $imagelist[$attach['aid']]); $aids[] = $attach['aid']; $path = $conf['upload_path'] . 'website_attach/' . $attach['filename']; is_file($path) and unlink($path); // 删除云储存文件 } } !empty($aids) and well_attach__delete($aids); } $images = count($imagelist); $files = count($filelist); } $return += array('tid' => $tid, 'pid' => $pid, 'icon' => $icon, 'message' => $message, 'images' => $images, 'files' => $files); return $return; } // 关联内容中的文件，逐渐放弃使用该函数，使用 well_attach_assoc_handle() function well_attach_assoc_file($arr = array()) { global $conf, $time; $uid = array_value($arr, 'uid', 0); $tid = array_value($arr, 'tid', 0); $post_create = array_value($arr, 'post_create', 0); // 创建回复 $pid = array_value($arr, 'pid', 0); $images = array_value($arr, 'images', 0); $files = array_value($arr, 'files', 0); $message = array_value($arr, 'message'); if (!$tid && !$pid) return $message; $attach_dir_save_rule = array_value($conf, 'attach_dir_save_rule', 'Ym'); $day = date($attach_dir_save_rule, $time); $path = $conf['upload_path'] . 'website_attach/' . $day; $url = $conf['upload_url'] . 'website_attach/' . $day; is_dir($path) || mkdir($path, 0777, TRUE); if (!empty($arr['sess_tmp_files'])) { $message = urldecode($message); preg_match_all('#]+src="(.*?)"#i', $message, $match); $localurlarr = array( 'http://' . $_SERVER['SERVER_NAME'] . '/', 'https://' . $_SERVER['SERVER_NAME'] . '/', ); // 跳过云储存 $conf['cloud_url'] and $localurlarr[] = $conf['cloud_url']; /*$match[1] Array ( [0] => https://nimg.ws.126.net/?url=http://dingyue.ws.126.net/2021/1109/d3321a58j00r29xq20013c000hk00h4g.jpg&thumbnail=650x2147483647&quality=80&type=jpg [1] => https://nimg.ws.126.net/?url=http://dingyue.ws.126.net/2021/1109/e4974b87j00r29xq30013c000fi00i3g.jpg&thumbnail=650x2147483647&quality=80&type=jpg [2] => upload/tmp/1_KAUXKFMJHFTUMNS.jpg [3] => https://nimg.ws.126.net/?url=http://dingyue.ws.126.net/2021/1109/5a7be552j00r29xq3001qc000hs00hvg.jpg&thumbnail=650x2147483647&quality=80&type=jpg )*/ $upload_arr = array(); $http_arr = array(); if (!empty($match[1])) { foreach ($match[1] as $_url) { foreach ($localurlarr as $localurl) { if ($localurl == substr($_url, 0, strlen($localurl))) continue 2; } if (substr($_url, 0, 7) == 'http://' || substr($_url, 0, 8) == 'https://') { $http_arr[] = $_url; } elseif (substr($_url, 0, 11) == 'upload/tmp/' || substr($_url, 0, 12) == '/upload/tmp/' || substr($_url, 0, 14) == '../upload/tmp/') { $upload_arr[] = $_url; } } } $attach = array(); foreach ($arr['sess_tmp_files'] as $file) { // 过滤非内容图，不包括附件 if (!in_array($file['url'], $upload_arr) && 0 != $file['isimage']) { unlink($file['path']); continue; } // 后台提交的内容需要替换掉../ $file['url'] = $file['backstage'] ? str_replace('../upload/', 'upload/', $file['url']) : str_replace('/upload/', 'upload/', $file['url']); // 内容附件 将文件移动到 upload/website_attach 目录 $filename = file_name($file['url']); // 绝对路径 $destfile = $path . '/' . $filename; // 相对路径 $desturl = $url . '/' . $filename; // 复制 xn_copy($file['path'], $destfile) || xn_log("xn_copy($file[path]), $destfile) failed, tid:$tid, pid:$pid", 'php_error'); if (is_file($destfile) && filesize($destfile) == filesize($file['path'])) unlink($file['path']); // 按照$destfile文件路径，上传至云储存或图床，返回数据.附件分离，最优方案是redis队列，单独写上传云储存php文件，nohup后台运行，将队列数据上传云储存，然后根据aid更新附件表attach_on、image_url自动，根据tid更新主题表attach_on。关联附件上传云储存，有可能导致超时。 $attacharr = array( /*'tid' => $tid, 'pid' => $pid,*/ 'uid' => $uid, 'filesize' => $file['filesize'], 'width' => $file['width'], 'height' => $file['height'], 'filename' => $day . '/' . $filename, 'orgfilename' => $file['orgfilename'], //'image_url' => '', // 图床文件完整网址 'filetype' => $file['filetype'], 'create_date' => $time, 'isimage' => $file['isimage'] ); $tid and $attacharr += $pid ? array('pid' => $pid) : array('tid' => $tid); $attach[] = $attacharr; // 关联内容再入库 //$aid = well_attach_create($attach); $file['backstage'] and $message = str_replace('../upload/', 'upload/', $message); $message = str_replace($file['url'], $desturl, $message); } !empty($attach) and attach_big_insert($attach); // 清空 session $_SESSION['tmp_website_files'] = array(); } // 更新附件数 $update = array(); $_images = 0; $_files = 0; // 处理不在 message 中的图片，删除掉没有插入的图片附件 if ($message) { // 只有评论会传pid list($attachlist, $imagelist, $filelist) = $pid ? well_attach_find_by_pid($pid) : well_attach_find_by_tid($tid); if (!empty($imagelist)) { $aids = array(); foreach ($imagelist as $key => $attach) { $url = $conf['upload_url'] . 'website_attach/' . $attach['filename']; if (FALSE === strpos($message, $url)) { unset($attachlist[$attach['aid']], $imagelist[$attach['aid']]); $aids[] = $attach['aid']; $path = $conf['upload_path'] . 'website_attach/' . $attach['filename']; is_file($path) and unlink($path); // 删除云储存文件 } } !empty($aids) and well_attach__delete($aids); } $_images = count($imagelist); $images != $_images and $update['images'] = $_images; $_files = count($filelist); $files != $_files and $update['files'] = $_files; } if (empty($update)) return $pid ? array($message, $_images, $_files) : $message; if ($pid) { if ($post_create) { $update['message'] = $message; comment__update($pid, $update); } else { // 编辑回复返回的数据 return array($message, $_images, $_files); } } else { well_thread_update($tid, $update); } return $message; } // thumbnail:主题主图 post:内容图片或附件 function well_attach_assoc_type($type) { switch ($type) { case 'thumbnail': $k = 'tmp_thumbnail'; break; case 'post': $k = 'tmp_website_files'; break; default: return NULL; break; } $sess_tmp_files = _SESSION($k); // 如果session中没有，从数据库中获取储存的session //if (empty($sess_tmp_files) && preg_match('#' . $k . '\|(a\:1\:\{.*\})#', _SESSION('data'), $matches)) $sess_tmp_files = unserialize(str_replace(array('+', '='), array('_', '.'), $matches['1'])); return $sess_tmp_files; } // Create thumbnail function well_attach_create_thumbnail($arr) { global $conf, $time, $forumlist, $config; $uid = array_value($arr, 'uid', 0); $tid = array_value($arr, 'tid', 0); $fid = array_value($arr, 'fid', 0); $forum = array_value($forumlist, $fid); $picture = $config['picture_size']; $picture = isset($forum['thumbnail']) ? $forum['thumbnail'] : $picture['picture_size']; $pic_width = $picture['width']; $pic_height = $picture['height']; $attachlist = well_attach_assoc_type('post'); if (empty($attachlist)) return; $attach_dir_save_rule = array_value($conf, 'attach_dir_save_rule', 'Ym'); $day = date($attach_dir_save_rule, $time); $path = $conf['upload_path'] . 'thumbnail/' . $day; is_dir($path) || mkdir($path, 0777, TRUE); $tmp_file = $conf['upload_path'] . 'tmp/' . $uid . '_' . $tid . '_' . $time . '.jpeg'; $i = 0; foreach ($attachlist as $val) { ++$i; if (1 == $val['isimage'] && 1 == $i) { 'clip' == array_value($conf, 'upload_resize', 'clip') ? well_image_clip_thumb($val['path'], $tmp_file, $pic_width, $pic_height) : well_image_thumb($val['path'], $tmp_file, $pic_width, $pic_height); break; } } $destfile = $path . '/' . $uid . '_' . $tid . '_' . $time . '.jpeg'; xn_copy($tmp_file, $destfile) || xn_log("xn_copy($tmp_file), $destfile) failed, tid:$tid", 'php_error'); } function well_save_remote_image($arr) { global $conf, $time, $forumlist, $config; $message = array_value($arr, 'message'); $tid = array_value($arr, 'tid', 0); $fid = array_value($arr, 'fid', 0); $uid = array_value($arr, 'uid', 0); $thumbnail = array_value($arr, 'thumbnail', 0); $save_image = array_value($arr, 'save_image', 0); $attach_dir_save_rule = array_value($conf, 'attach_dir_save_rule', 'Ym'); $day = date($attach_dir_save_rule, $time); $attach_dir = $conf['upload_path'] . 'website_attach/' . $day . '/'; $attach_url = $conf['upload_url'] . 'website_attach/' . $day . '/'; is_dir($attach_dir) || mkdir($attach_dir, 0777, TRUE); if ($thumbnail) { $picture = $config['picture_size']; $forum = array_value($forumlist, $fid); $picture = isset($forum['thumbnail']) ? $forum['thumbnail'] : $picture['picture_size']; $pic_width = $picture['width']; $pic_height = $picture['height']; $thumbnail_path = $conf['upload_path'] . 'thumbnail/' . $day . '/'; is_dir($thumbnail_path) || mkdir($thumbnail_path, 0777, TRUE); $tmp_file = $thumbnail_path . $uid . '_' . $tid . '_' . $time . '.jpeg'; } $localurlarr = array( 'http://' . $_SERVER['SERVER_NAME'] . '/', 'https://' . $_SERVER['SERVER_NAME'] . '/', ); // 跳过云储存 $conf['cloud_url'] and $localurlarr[] = $conf['cloud_url']; //$save_image_quality = array_value($conf, 'save_image_quality', 0); $save_image_quality = 0; $message = urldecode($message); //$message = str_replace('&', '&', $message); //$message = htmlspecialchars_decode($message); preg_match_all('#]+src="(http.*?)"#i', $message, $match); if (!empty($match[1])) { $n = 0; $i = 0; foreach ($match[1] as $url) { foreach ($localurlarr as $localurl) { if ($localurl == substr($url, 0, strlen($localurl))) continue 2; } $full_url = htmlspecialchars_decode($url); $message = str_replace($url, $full_url, $message); $getimgsize = getimagesize($full_url); if (FALSE === $getimgsize) continue; // 非图片跳出 $filename = $uid . '_' . xn_rand(16); if (1 == $getimgsize[2]) { $filename .= '.gif'; $destpath = $attach_dir . $filename; } elseif (in_array($getimgsize[2], array(2, 3, 15, 18))) { $filename .= '.jpeg'; $destpath = $attach_dir . $filename; } else { continue; // 非常见图片格式跳出 } $desturl = $attach_url . $filename; $_message = str_replace($full_url, $desturl, $message); if ($message != $_message) { if ($save_image) { if (0 == $save_image_quality) { $imgdata = https_request($full_url); //$destpath = $attach_dir . $filename; file_put_contents_try($destpath, $imgdata); } else { // 图片压缩 GD 库效率低下 ImageMagick 需要额外安装扩展 switch ($getimgsize[2]) { case 1: // GIF $imgdata = imagecreatefromgif($full_url); break; case 2: // JPG $imgdata = imagecreatefromjpeg($full_url); break; case 3: // PNG $imgdata = imagecreatefrompng($full_url); break; case 15: // WBMP $imgdata = imagecreatefromwbmp($full_url); break; case 18: // WEBP $imgdata = imagecreatefromwebp($full_url); break; } imagejpeg($imgdata, $destpath, $save_image_quality); imagedestroy($imgdata); } } // 创建缩略图 if ($thumbnail) { if (1 == ++$i) { if (empty($save_image)) { $imgdata = https_request($full_url); file_put_contents_try($destpath, $imgdata); } // 裁切保存到缩略图目录 'clip' == array_value($conf, 'upload_resize', 'clip') ? well_image_clip_thumb($destpath, $tmp_file, $pic_width, $pic_height, $getimgsize) : well_image_thumb($destpath, $tmp_file, $pic_width, $pic_height, $getimgsize); well_thread_update($tid, array('icon' => $time)); } if (empty($save_image)) { is_file($destpath) and unlink($destpath); continue; } } $filesize = strlen($imgdata); $attach = array('tid' => $tid, 'uid' => $uid, 'filesize' => $filesize, 'width' => $getimgsize[0], 'height' => $getimgsize[1], 'filename' => "$day/$filename", 'orgfilename' => $filename, 'filetype' => 'image', 'create_date' => $time, 'downloads' => 0, 'isimage' => 1); $aid = well_attach_create($attach); $n++; } $message = preg_replace('#( $n)); } return $message; } function well_get_image_url($url) { if ($n = strpos($url, '.jpg')) { $_n = $n + 4; } elseif ($n = strpos($url, '.jpeg')) { $_n = $n + 5; } elseif ($n = strpos($url, '.png')) { $_n = $n + 4; } elseif ($n = strpos($url, '.gif')) { $_n = $n + 4; } elseif ($n = strpos($url, '.bmp')) { $_n = $n + 4; } $url = $n ? mb_substr($url, 0, $_n, 'UTF-8') : NULL; return $url; } ?>思维与算法共舞AIGC语言模型的艺术与科学
思维与算法共舞：AIGC语言模型的艺术与科学

思维与算法共舞：AIGC语言模型的艺术与科学

正文开始——引言：AIGC与文本生成概述人工智能生成内容（AIGC）是指通过使用机器学习算法，尤其是深度学习模型，来自动生成各种类型的内容，包括文字、图像、音频和视频等。文本生成是AIGC最常见且应用最广泛的领域之一。在过去的几年里，随着自

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