WordPress图片自动添加alt属性和title标签教程

function imagesalt($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 $content;
}
add_filter('the_content', 'imagesalt');
function aimagesalt($content) {
       global $post;
       $pattern ="/<a(.*?)href=('|\")(.*?).(bmp|gif|jpeg|jpg|png)('|\")(.*?)>/i";
       $replacement = '<a$1href=$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', 'aimagesalt');

只需要将上面代码添加到我们所使用主题的 functions.php 文件最后一个?>之前，即可实现自动为 WordPress 站点图片添加 alt 和 title 属性