在WordPress主题中加入远程图片文件自动本地化代码,经常转载文章的朋友应该会用到这个功能。把外链图片自动保存到网站本地,防止外链图片失效造成图片不显示。那么如何实现WordPress远程图片自动本地化?把下面的代码添加到主题的 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。

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\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’,\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’jpg\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’,\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’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;

}

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