通过图像名称获取 url 文件 [英] get the url file by name of image

问题描述

大家好，我在 wordpress 的媒体文件夹中有几张图片

Hi everyone I have several image in my media folder in wordpress

当保存一个新图片 Wordpress 保存为年/月/名称.png

when a save a new image Wordpress save like year/month/name.png

/wp-content/uploads/2011/01/matt.png

可以通过名称找到图像并返回这样的url文件吗?

It is possible find the image by name and return the url File like this?

wp-content/uploads/2011/01/

我正在使用这个

    <?php $upload_dir = wp_upload_dir(); ?>
            <img src="<?php echo $upload_dir['baseurl']; ?>/<?php echo $precontent; ?>.png " class="attachment-post-thumbnail">

其中 $precontent 是图像的名称和 $upload_dir['baseurl'];

where $precontent is the name of image and $upload_dir['baseurl'];

返回/wp-content/uploads 但我需要这张图片的年份和月份所以我有/wp-content/uploads/matt.png

return /wp-content/uploads but I need the year and month of this image so I have /wp-content/uploads/matt.png

有什么想法吗?

推荐答案

如果您想获取附件的完整路径，请认为附件只是使用 post_type = 'attachment' 发布.这意味着您可以按名称查询它们.另请注意，帖子具有独特的 slug.所以 matt.png 会有 slug matt :)

If you're trying to get the full path of the attachment think that an attachment is just post with post_type = 'attachment'. That means you can query for them by name. Also, note that posts have unique slugs. So matt.png will have the slug matt :)

function get_attachment_url_by_slug( $slug ) {
  $args = array(
    'post_type' => 'attachment',
    'name' => sanitize_title($slug),
    'posts_per_page' => 1,
    'post_status' => 'inherit',
  );
  $_header = get_posts( $args );
  $header = $_header ? array_pop($_header) : null;
  return $header ? wp_get_attachment_url($header->ID) : '';
}

然后你只需要执行以下操作:

And then you just have to do the following:

$header_url = get_attachment_url_by_slug('matt');

这将返回文件的完整路径.

which will return the full path of your file.

请注意，sanitize_title(); 会将您的名字自动转换为 slug.因此，如果您上传了具有该名称的文件.Christmas iscoming.png，wordpress 会把它指定为像 christmas-is-coming 这样的 slug.如果您使用 sanitize_title('Christmas iscoming'); 结果也将是 christmas-is-coming 之后您可以获得完整的 url.:)

Note that sanitize_title(); will auto-transform your name into a slug. So if you uploaded a file with the name. Christmas is coming.png, wordpress would have designated it a slug like christmas-is-coming. And if you use sanitize_title('Christmas is coming'); the result would also be christmas-is-coming and after that you can get the full url. :)

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