代码如下：
add_filter('content_save_pre', 'auto_save_image'); function auto_save_image($content) { $upload_path = ''; $upload_url_path = get_bloginfo('url'); //上传目录 if (($var = get_option('upload_path')) !=''){ $upload_path = $var; } else { $upload_path = 'wp-content/uploads'; } if(get_option('uploads_use_yearmonth_folders')) { $upload_path .= '/'.date("Y",time()).'/'.date("m",time()); } //文件地址 if(($var = get_option('upload_url_path')) != '') { $upload_url_path = $var; } else { $upload_url_path = bloginfo('url'); } if(get_option('uploads_use_yearmonth_folders')) { $upload_url_path .= '/'.date("Y",time()).'/'.date("m",time()); } require_once ("../wp-includes/class-snoopy.php"); $snoopy_Auto_Save_Image = new Snoopy; $img = array(); //以文章的标题作为图片的标题 if ( !empty( $_REQUEST['post_title'] ) ) $post_title = wp_specialchars( stripslashes( $_REQUEST['post_title'] )); $text = stripslashes($content); if (get_magic_quotes_gpc()) $text = stripslashes($text); preg_match_all("/ src=(\"|\'){0,}(http:\/\/(.+?))(\"|\'|\s)/is",$text,$img); $img = array_unique(dhtmlspecialchars($img[2])); foreach ($img as $key => $value){ set_time_limit(180); //每个图片最长允许下载时间,秒 if(str_replace(get_bloginfo('url'),"",$value)==$value&&str_replace(get_bloginfo('home'),"",$value)==$value){ //判断是否是本地图片，如果不是，则保存到服务器 $fileext = substr(strrchr($value,'.'),1); $fileext = strtolower($fileext); if($fileext==""||strlen($fileext)>4) $fileext = "jpg"; $savefiletype = array('jpg','gif','png','bmp'); if (in_array($fileext, $savefiletype)){ if($snoopy_Auto_Save_Image->fetch($value)){ $get_file = $snoopy_Auto_Save_Image->results; }else{ echo "error fetching file: ".$snoopy_Auto_Save_Image->error."<br>"; echo "error url: ".$value; die(); } $filetime = time(); $filepath = "/".$upload_path;//图片保存的路径目录 !is_dir("..".$filepath) ? mkdirs("..".$filepath) : null; //$filename = date("His",$filetime).random(3); $filename = substr($value,strrpos($value,'/'),strrpos($value,'.')-strrpos($value,'/')); //$e = '../'.$filepath.$filename.'.'.$fileext; //if(!is_file($e)) { // copy(htmlspecialchars_decode($value),$e); //} $fp = @fopen("..".$filepath.$filename.".".$fileext,"w"); @fwrite($fp,$get_file); fclose($fp); $wp_filetype = wp_check_filetype( $filename.".".$fileext, false ); $type = $wp_filetype['type']; $post_id = (int)$_POST['temp_ID2']; $title = $post_title; $url = $upload_url_path.$filename.".".$fileext; $file = $_SERVER['DOCUMENT_ROOT'].$filepath.$filename.".".$fileext; //添加数据库记录 $attachment = array( 'post_type' => 'attachment', 'post_mime_type' => $type, 'guid' => $url, 'post_parent' => $post_id, 'post_title' => $title, 'post_content' => '', ); $id = wp_insert_attachment($attachment, $file, $post_parent); $text = str_replace($value,$url,$text); //替换文章里面的图片地址 } } } $content = AddSlashes($text); remove_filter('content_save_pre', 'auto_save_image'); return $content; } function mkdirs($dir) { if(!is_dir($dir)) { mkdirs(dirname($dir)); mkdir($dir); } return ; } function dhtmlspecialchars($string) { if(is_array($string)) { foreach($string as $key => $val) { $string[$key] = dhtmlspecialchars($val); } }else{ $string = str_replace('&', '&', $string); $string = str_replace('"', '"', $string); $string = str_replace('<', '<', $string); $string = str_replace('>', '>', $string); $string = preg_replace('/&(#\d;)/', '&\1', $string); } return $string; } |
将次代码写入主题的functions.php文件或者是functions.php的引入文件中即可，以后每当在wordpress发布文章时如果文章中含有外链图片就会自动本地化了，无需任何设置操作非常方便。