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<title>[50011] trunk/src/wp-admin/includes/export.php: Export: Create an export-specific filter for post titles.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/50011">50011</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/50011","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>pento</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2021-01-25 00:08:02 +0000 (Mon, 25 Jan 2021)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Export: Create an export-specific filter for post titles.
Since WordPress 2.5 and 2.6, `post_content` and `post_excerpt` have both had export-specific filters: `the_content_export`, and `the_excerpt_export`, respectively. `post_title`, however, has used `the_title_rss`, which behaves differently in two important ways:
- It strips HTML tags from the string.
- It HTML-encodes the title string.
These behaviours are not ideal for exports, since it changes the post title, resulting in data loss in export files, and incorrect post duplicate matching on import. This changes replaces the usage of `the_title_rss` with a new filter, `the_title_export`. The new filter is intended to be used in the same as `the_content_export` and `the_excerpt_export`.
Props jmdodd, audrasjb.
Fixes <a href="https://core.trac.wordpress.org/ticket/52250">#52250</a>.</pre>
<h3>Modified Paths</h3>
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<li><a href="#trunksrcwpadminincludesexportphp">trunk/src/wp-admin/includes/export.php</a></li>
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<h3>Diff</h3>
<a id="trunksrcwpadminincludesexportphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/includes/export.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/export.php 2021-01-24 16:50:39 UTC (rev 50010)
+++ trunk/src/wp-admin/includes/export.php 2021-01-25 00:08:02 UTC (rev 50011)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -542,8 +542,14 @@
</span><span class="cx" style="display: block; padding: 0 10px"> foreach ( $posts as $post ) {
</span><span class="cx" style="display: block; padding: 0 10px"> setup_postdata( $post );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- /** This filter is documented in wp-includes/feed.php */
- $title = apply_filters( 'the_title_rss', $post->post_title );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ /**
+ * Filters the post title used for WXR exports.
+ *
+ * @since 5.7.0
+ *
+ * @param string $post_title Title of the current post.
+ */
+ $title = wxr_cdata( apply_filters( 'the_title_export', $post->post_title ) );
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><span class="cx" style="display: block; padding: 0 10px"> * Filters the post content used for WXR exports.
</span></span></pre>
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