【发布时间】:2021-10-21 12:44:01
【问题描述】:
我正在使用下面的代码(我在this post 的堆栈溢出中找到它)来自动重命名图像文件名并根据帖子标题填充 alt 和标题字段。
好消息是它正在工作,它正在做它的工作,但问题在于文件名:它使用带有空格、逗号等的帖子标题作为文件名,这真的不好。它非常适合填充标题和 alt 字段,但不适用于文件名。
所以,对于文件名,我想添加一些东西来用连字符替换空格(如果可能的话,删除潜在的逗号或其他标点符号)
我原以为add_filter( 'sanitize_file_name', 'file_renamer', 10, 1 ); 的角色可以胜任这份工作,但事实并非如此。
但由于我真的不确定自己在做什么,而且我的 PHP 知识很差,如果您能教我如何使它工作,我将不胜感激:
function file_renamer( $filename ) {
$info = pathinfo( $filename );
$ext = empty( $info['extension'] ) ? '' : '.' . $info['extension'];
$name = basename( $filename, $ext );
if( $post_id = array_key_exists("post_id", $_POST) ? $_POST["post_id"] : null) {
if($post = get_post($post_id)) {
return $post->post_title . $ext;
}
}
$my_image_title = $post;
$file['name'] = $my_image_title . - uniqid() . $ext; // uniqid method
// $file['name'] = md5($name) . $ext; // md5 method
// $file['name'] = base64_encode($name) . $ext; // base64 method
return $filename;
}
add_filter( 'sanitize_file_name', 'file_renamer', 10, 1 );
/* Automatically set the image Title, Alt-Text, Caption & Description upon upload */
add_action( 'add_attachment', 'my_set_image_meta_upon_image_upload' );
function my_set_image_meta_upon_image_upload( $post_ID ) {
// Check if uploaded file is an image, else do nothing
if ( wp_attachment_is_image( $post_ID ) ) {
// Get the parent post ID, if there is one
if( isset($_REQUEST['post_id']) ) {
$post_id = $_REQUEST['post_id'];
} else {
$post_id = false;
}
if ($post_id != false) {
$my_image_title = get_the_title($post_id);
} else {
$my_image_title = get_post( $post_ID )->post_title;
}
// Sanitize the title: remove hyphens, underscores & extra spaces:
$my_image_title = preg_replace( '%\s*[-_\s]+\s*%', ' ', $my_image_title );
// Create an array with the image meta (Title, Caption, Description) to be updated
// Note: comment out the Excerpt/Caption or Content/Description lines if not needed
$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_content' => $my_image_title, // Set image Description (Content) to sanitized title
);
// Set the image Alt-Text
update_post_meta( $post_ID, '_wp_attachment_image_alt', $my_image_title );
// Set the image meta (e.g. Title, Excerpt, Content)
wp_update_post( $my_image_meta );
}
}
感谢您的帮助!
【问题讨论】:
标签: wordpress image rename filenames auto