Posted by: Fengjiajun
Comments: 0
Post Date: 2021年4月9日
WordPress上传图片时自动填充图片title和alt
默认情况，WordPress上传到媒体的图片title和alt为空，但是考虑到SEO，插入到文章或页面的图片必须要填写alt或者title，每张图片都要手动填写，效率太慢了。
下面的代码能够实现：
WordPress上传图片时，根据图片的名字自动填充图片title和alt等属性，拿去享用吧！
function my_set_image_meta_upon_image_upload( $post_ID ) {
if ( wp_attachment_is_image( $post_ID ) ) {
$my_image_title = get_post( $post_ID )->post_title;
$my_image_title = preg_replace( '%\s*[-_\s]+\s*%', ' ', $my_image_title );
$my_image_title = ucwords( strtolower( $my_image_title ) );
$my_image_meta = array(
'ID' => $post_ID, // Specify the image (ID) to be updated
'post_title' => $my_image_title, // Set image Title to sanitized title
'post_excerpt' => $my_image_title, // Set image Caption (Excerpt) to sanitized title
'post_content' => $my_image_title, // Set image Description (Content) to sanitized title
);
update_post_meta( $post_ID, '_wp_attachment_image_alt', $my_image_title );
wp_update_post( $my_image_meta );
}
}
add_action( 'add_attachment', 'my_set_image_meta_upon_image_upload' );
