wordpress自动给图片添加alt和title信息

给图片自动添加alt和title信息，这是什么意思？不用废话太多了。SEO都知道！

在functions.php文件内

//给文章图片自动添加alt和title信息
function tin_image_alt($content){
 global $post;
 $pattern = "/<img(.*?)src=('|\")(.*?).(bmp|gif|jpeg|jpg|png)('|\")(.*?)>/i";
 $replacement = '<img$1src=$2$3.$4$5 alt="'.$post->post_title.'" title="'.$post->post_title.'"$6>';
 $content = preg_replace($pattern,$replacement,$content);
 return $content;
}
add_filter('the_content','tin_image_alt',15);

//给文章图片自动添加alt和title信息

function tin_image_alt($content){

global $post;

$pattern = "/<img(.*?)src=('|\")(.*?).(bmp|gif|jpeg|jpg|png)('|\")(.*?)>/i";

$replacement = '<img$1src=$2$3.$4$5 alt="'.$post->post_title.'" title="'.$post->post_title.'"$6>';

$content = preg_replace($pattern,$replacement,$content);

return $content;

}

add_filter('the_content','tin_image_alt',15);

wordpress自动给图片添加alt和title信息