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ID3
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IXR
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PHPMailer
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NONE
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NONE
SimplePie
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NONE
Text
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assets
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NONE
block-patterns
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NONE
block-supports
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NONE
blocks
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certificates
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NONE
css
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customize
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NONE
fonts
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images
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js
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php-compat
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pomo
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random_compat
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rest-api
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sitemaps
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sodium_compat
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theme-compat
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widgets
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admin-bar.php
32.69KB
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atomlib.php
11.668KB
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author-template.php
16.631KB
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block-editor.php
18.371KB
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block-i18n.json
0.309KB
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block-patterns.php
4.191KB
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block-template-utils.php
29.572KB
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block-template.php
10.521KB
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blocks.php
42.222KB
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bookmark-template.php
12.598KB
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bookmark.php
14.973KB
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cache-compat.php
1.021KB
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cache.php
9.29KB
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canonical.php
32.31KB
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capabilities.php
34.884KB
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category-template.php
54.396KB
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category.php
12.414KB
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class-IXR.php
2.483KB
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class-feed.php
0.517KB
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class-http.php
0.364KB
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class-json.php
42.423KB
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class-oembed.php
0.397KB
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class-phpass.php
6.542KB
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class-phpmailer.php
0.648KB
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class-pop3.php
20.349KB
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class-requests.php
29.718KB
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class-simplepie.php
95.781KB
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class-smtp.php
0.446KB
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class-snoopy.php
36.831KB
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class-walker-category-dropdown.php
2.412KB
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class-walker-category.php
8.27KB
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class-walker-comment.php
13.878KB
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class-walker-nav-menu.php
9.13KB
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class-walker-page-dropdown.php
2.646KB
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class-walker-page.php
7.421KB
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class-wp-admin-bar.php
17.052KB
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class-wp-ajax-response.php
5.117KB
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class-wp-application-passwords.php
11.948KB
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class-wp-block-editor-context.php
0.869KB
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class-wp-block-list.php
4.612KB
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class-wp-block-parser.php
14.861KB
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class-wp-block-pattern-categories-registry.php
4.431KB
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class-wp-block-patterns-registry.php
5.796KB
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class-wp-block-styles-registry.php
4.882KB
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class-wp-block-supports.php
5.172KB
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class-wp-block-template.php
1.773KB
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class-wp-block-type-registry.php
4.533KB
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class-wp-block-type.php
9.27KB
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class-wp-block.php
7.991KB
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class-wp-comment-query.php
46.334KB
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class-wp-comment.php
9.103KB
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class-wp-customize-control.php
25.108KB
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class-wp-customize-manager.php
196.558KB
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class-wp-customize-nav-menus.php
55.448KB
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class-wp-customize-panel.php
10.192KB
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class-wp-customize-section.php
10.716KB
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class-wp-customize-setting.php
29.082KB
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class-wp-customize-widgets.php
69.517KB
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class-wp-date-query.php
34.173KB
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class-wp-dependency.php
2.452KB
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class-wp-editor.php
69.537KB
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class-wp-embed.php
15.567KB
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class-wp-error.php
7.131KB
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class-wp-fatal-error-handler.php
7.397KB
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class-wp-feed-cache-transient.php
2.5KB
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class-wp-feed-cache.php
0.947KB
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class-wp-hook.php
15.323KB
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class-wp-http-cookie.php
7.213KB
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class-wp-http-curl.php
12.099KB
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class-wp-http-encoding.php
6.507KB
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class-wp-http-ixr-client.php
3.394KB
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class-wp-http-proxy.php
5.82KB
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class-wp-http-requests-hooks.php
1.938KB
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class-wp-http-requests-response.php
4.241KB
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class-wp-http-response.php
2.882KB
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class-wp-http-streams.php
16.259KB
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class-wp-http.php
38.974KB
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class-wp-image-editor-gd.php
15.295KB
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class-wp-image-editor-imagick.php
26.329KB
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class-wp-image-editor.php
16.262KB
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class-wp-list-util.php
6.825KB
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class-wp-locale-switcher.php
4.904KB
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class-wp-locale.php
13.654KB
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class-wp-matchesmapregex.php
1.758KB
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class-wp-meta-query.php
29.471KB
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class-wp-metadata-lazyloader.php
5.227KB
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class-wp-network-query.php
18.722KB
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class-wp-network.php
12.089KB
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class-wp-object-cache.php
13.233KB
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class-wp-oembed-controller.php
6.667KB
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class-wp-oembed.php
29.982KB
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class-wp-paused-extensions-storage.php
4.808KB
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class-wp-post-type.php
20.72KB
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class-wp-post.php
6.272KB
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class-wp-query.php
135.702KB
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class-wp-recovery-mode-cookie-service.php
6.308KB
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class-wp-recovery-mode-email-service.php
10.41KB
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class-wp-recovery-mode-key-service.php
4.17KB
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class-wp-recovery-mode-link-service.php
3.321KB
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class-wp-recovery-mode.php
11.111KB
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class-wp-rewrite.php
61.486KB
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class-wp-role.php
2.439KB
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class-wp-roles.php
8.236KB
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class-wp-session-tokens.php
7.251KB
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class-wp-simplepie-file.php
3.183KB
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class-wp-simplepie-sanitize-kses.php
1.733KB
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class-wp-site-query.php
29.648KB
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class-wp-site.php
7.254KB
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class-wp-tax-query.php
18.993KB
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class-wp-taxonomy.php
13.409KB
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class-wp-term-query.php
37.178KB
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class-wp-term.php
5.148KB
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class-wp-text-diff-renderer-inline.php
0.699KB
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class-wp-text-diff-renderer-table.php
16.401KB
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class-wp-theme-json-resolver.php
14.063KB
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class-wp-theme-json-schema.php
4.195KB
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class-wp-theme-json.php
61.309KB
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class-wp-theme.php
52.563KB
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class-wp-user-meta-session-tokens.php
2.92KB
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class-wp-user-query.php
37.177KB
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class-wp-user-request.php
2.145KB
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class-wp-user.php
21.702KB
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class-wp-walker.php
12.707KB
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class-wp-widget-factory.php
3.243KB
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class-wp-widget.php
17.723KB
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class-wp-xmlrpc-server.php
207.944KB
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class-wp.php
24.67KB
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class.wp-dependencies.php
13.68KB
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class.wp-scripts.php
18.5KB
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class.wp-styles.php
10.626KB
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comment-template.php
93.813KB
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comment.php
123.567KB
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compat.php
14.524KB
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cron.php
39.899KB
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date.php
0.396KB
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default-constants.php
10.017KB
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default-filters.php
30.728KB
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default-widgets.php
2.17KB
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deprecated.php
121.944KB
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embed-template.php
0.333KB
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embed.php
36.05KB
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error-protection.php
4.021KB
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feed-atom-comments.php
5.316KB
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feed-atom.php
2.977KB
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feed-rdf.php
2.605KB
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feed-rss.php
1.161KB
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feed-rss2-comments.php
3.975KB
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feed-rss2.php
3.71KB
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feed.php
22.428KB
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formatting.php
318.689KB
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functions.php
251.333KB
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functions.wp-scripts.php
13.121KB
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functions.wp-styles.php
8.37KB
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general-template.php
155.356KB
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global-styles-and-settings.php
6.21KB
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http.php
22.463KB
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https-detection.php
6.701KB
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https-migration.php
4.619KB
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kses.php
67.492KB
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l10n.php
57.655KB
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link-template.php
145.705KB
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load.php
49.001KB
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locale.php
0.158KB
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media-template.php
58.967KB
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media.php
180.748KB
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meta.php
61.213KB
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ms-blogs.php
24.584KB
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ms-default-constants.php
4.652KB
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ms-default-filters.php
6.35KB
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ms-deprecated.php
20.634KB
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ms-files.php
2.592KB
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ms-functions.php
91.922KB
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ms-load.php
19.322KB
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ms-network.php
3.575KB
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ms-settings.php
4.027KB
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ms-site.php
38.679KB
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nav-menu-template.php
22.75KB
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nav-menu.php
41.552KB
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option.php
75.102KB
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pluggable-deprecated.php
6.116KB
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pluggable.php
101.957KB
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plugin.php
33.414KB
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post-formats.php
6.913KB
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post-template.php
63.328KB
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post-thumbnail-template.php
10.633KB
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post.php
268.666KB
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query.php
34.944KB
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registration-functions.php
0.195KB
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registration.php
0.195KB
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rest-api.php
93.053KB
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revision.php
22.933KB
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rewrite.php
18.763KB
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robots-template.php
5.052KB
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rss-functions.php
0.249KB
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rss.php
22.439KB
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script-loader.php
110.872KB
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session.php
0.252KB
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shortcodes.php
20.93KB
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sitemaps.php
3.162KB
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spl-autoload-compat.php
0.431KB
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taxonomy.php
167.623KB
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template-canvas.php
0.578KB
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template-loader.php
2.941KB
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template.php
21.958KB
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theme-i18n.json
0.903KB
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theme-templates.php
5.404KB
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theme.json
5.602KB
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theme.php
124.052KB
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update.php
29.338KB
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user.php
157.788KB
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vars.php
5.68KB
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version.php
0.937KB
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widgets.php
67.579KB
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wlwmanifest.xml
1.021KB
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wp-db.php
106.221KB
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wp-diff.php
0.632KB
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<=Back
<?php /** * WordPress Feed API * * Many of the functions used in here belong in The Loop, or The Loop for the * Feeds. * * @package WordPress * @subpackage Feed * @since 2.1.0 */ /** * RSS container for the bloginfo function. * * You can retrieve anything that you can using the get_bloginfo() function. * Everything will be stripped of tags and characters converted, when the values * are retrieved for use in the feeds. * * @since 1.5.1 * * @see get_bloginfo() For the list of possible values to display. * * @param string $show See get_bloginfo() for possible values. * @return string */ function get_bloginfo_rss( $show = '' ) { $info = strip_tags( get_bloginfo( $show ) ); /** * Filters the bloginfo for use in RSS feeds. * * @since 2.2.0 * * @see convert_chars() * @see get_bloginfo() * * @param string $info Converted string value of the blog information. * @param string $show The type of blog information to retrieve. */ return apply_filters( 'get_bloginfo_rss', convert_chars( $info ), $show ); } /** * Display RSS container for the bloginfo function. * * You can retrieve anything that you can using the get_bloginfo() function. * Everything will be stripped of tags and characters converted, when the values * are retrieved for use in the feeds. * * @since 0.71 * * @see get_bloginfo() For the list of possible values to display. * * @param string $show See get_bloginfo() for possible values. */ function bloginfo_rss( $show = '' ) { /** * Filters the bloginfo for display in RSS feeds. * * @since 2.1.0 * * @see get_bloginfo() * * @param string $rss_container RSS container for the blog information. * @param string $show The type of blog information to retrieve. */ echo apply_filters( 'bloginfo_rss', get_bloginfo_rss( $show ), $show ); } /** * Retrieve the default feed. * * The default feed is 'rss2', unless a plugin changes it through the * {@see 'default_feed'} filter. * * @since 2.5.0 * * @return string Default feed, or for example 'rss2', 'atom', etc. */ function get_default_feed() { /** * Filters the default feed type. * * @since 2.5.0 * * @param string $feed_type Type of default feed. Possible values include 'rss2', 'atom'. * Default 'rss2'. */ $default_feed = apply_filters( 'default_feed', 'rss2' ); return ( 'rss' === $default_feed ) ? 'rss2' : $default_feed; } /** * Retrieve the blog title for the feed title. * * @since 2.2.0 * @since 4.4.0 The optional `$sep` parameter was deprecated and renamed to `$deprecated`. * * @param string $deprecated Unused.. * @return string The document title. */ function get_wp_title_rss( $deprecated = '–' ) { if ( '–' !== $deprecated ) { /* translators: %s: 'document_title_separator' filter name. */ _deprecated_argument( __FUNCTION__, '4.4.0', sprintf( __( 'Use the %s filter instead.' ), '<code>document_title_separator</code>' ) ); } /** * Filters the blog title for use as the feed title. * * @since 2.2.0 * @since 4.4.0 The `$sep` parameter was deprecated and renamed to `$deprecated`. * * @param string $title The current blog title. * @param string $deprecated Unused. */ return apply_filters( 'get_wp_title_rss', wp_get_document_title(), $deprecated ); } /** * Display the blog title for display of the feed title. * * @since 2.2.0 * @since 4.4.0 The optional `$sep` parameter was deprecated and renamed to `$deprecated`. * * @param string $deprecated Unused. */ function wp_title_rss( $deprecated = '–' ) { if ( '–' !== $deprecated ) { /* translators: %s: 'document_title_separator' filter name. */ _deprecated_argument( __FUNCTION__, '4.4.0', sprintf( __( 'Use the %s filter instead.' ), '<code>document_title_separator</code>' ) ); } /** * Filters the blog title for display of the feed title. * * @since 2.2.0 * @since 4.4.0 The `$sep` parameter was deprecated and renamed to `$deprecated`. * * @see get_wp_title_rss() * * @param string $wp_title_rss The current blog title. * @param string $deprecated Unused. */ echo apply_filters( 'wp_title_rss', get_wp_title_rss(), $deprecated ); } /** * Retrieve the current post title for the feed. * * @since 2.0.0 * * @return string Current post title. */ function get_the_title_rss() { $title = get_the_title(); /** * Filters the post title for use in a feed. * * @since 1.2.0 * * @param string $title The current post title. */ return apply_filters( 'the_title_rss', $title ); } /** * Display the post title in the feed. * * @since 0.71 */ function the_title_rss() { echo get_the_title_rss(); } /** * Retrieve the post content for feeds. * * @since 2.9.0 * * @see get_the_content() * * @param string $feed_type The type of feed. rss2 | atom | rss | rdf * @return string The filtered content. */ function get_the_content_feed( $feed_type = null ) { if ( ! $feed_type ) { $feed_type = get_default_feed(); } /** This filter is documented in wp-includes/post-template.php */ $content = apply_filters( 'the_content', get_the_content() ); $content = str_replace( ']]>', ']]>', $content ); /** * Filters the post content for use in feeds. * * @since 2.9.0 * * @param string $content The current post content. * @param string $feed_type Type of feed. Possible values include 'rss2', 'atom'. * Default 'rss2'. */ return apply_filters( 'the_content_feed', $content, $feed_type ); } /** * Display the post content for feeds. * * @since 2.9.0 * * @param string $feed_type The type of feed. rss2 | atom | rss | rdf */ function the_content_feed( $feed_type = null ) { echo get_the_content_feed( $feed_type ); } /** * Display the post excerpt for the feed. * * @since 0.71 */ function the_excerpt_rss() { $output = get_the_excerpt(); /** * Filters the post excerpt for a feed. * * @since 1.2.0 * * @param string $output The current post excerpt. */ echo apply_filters( 'the_excerpt_rss', $output ); } /** * Display the permalink to the post for use in feeds. * * @since 2.3.0 */ function the_permalink_rss() { /** * Filters the permalink to the post for use in feeds. * * @since 2.3.0 * * @param string $post_permalink The current post permalink. */ echo esc_url( apply_filters( 'the_permalink_rss', get_permalink() ) ); } /** * Outputs the link to the comments for the current post in an xml safe way * * @since 3.0.0 */ function comments_link_feed() { /** * Filters the comments permalink for the current post. * * @since 3.6.0 * * @param string $comment_permalink The current comment permalink with * '#comments' appended. */ echo esc_url( apply_filters( 'comments_link_feed', get_comments_link() ) ); } /** * Display the feed GUID for the current comment. * * @since 2.5.0 * * @param int|WP_Comment $comment_id Optional comment object or ID. Defaults to global comment object. */ function comment_guid( $comment_id = null ) { echo esc_url( get_comment_guid( $comment_id ) ); } /** * Retrieve the feed GUID for the current comment. * * @since 2.5.0 * * @param int|WP_Comment $comment_id Optional comment object or ID. Defaults to global comment object. * @return string|false GUID for comment on success, false on failure. */ function get_comment_guid( $comment_id = null ) { $comment = get_comment( $comment_id ); if ( ! is_object( $comment ) ) { return false; } return get_the_guid( $comment->comment_post_ID ) . '#comment-' . $comment->comment_ID; } /** * Display the link to the comments. * * @since 1.5.0 * @since 4.4.0 Introduced the `$comment` argument. * * @param int|WP_Comment $comment Optional. Comment object or ID. Defaults to global comment object. */ function comment_link( $comment = null ) { /** * Filters the current comment's permalink. * * @since 3.6.0 * * @see get_comment_link() * * @param string $comment_permalink The current comment permalink. */ echo esc_url( apply_filters( 'comment_link', get_comment_link( $comment ) ) ); } /** * Retrieve the current comment author for use in the feeds. * * @since 2.0.0 * * @return string Comment Author */ function get_comment_author_rss() { /** * Filters the current comment author for use in a feed. * * @since 1.5.0 * * @see get_comment_author() * * @param string $comment_author The current comment author. */ return apply_filters( 'comment_author_rss', get_comment_author() ); } /** * Display the current comment author in the feed. * * @since 1.0.0 */ function comment_author_rss() { echo get_comment_author_rss(); } /** * Display the current comment content for use in the feeds. * * @since 1.0.0 */ function comment_text_rss() { $comment_text = get_comment_text(); /** * Filters the current comment content for use in a feed. * * @since 1.5.0 * * @param string $comment_text The content of the current comment. */ $comment_text = apply_filters( 'comment_text_rss', $comment_text ); echo $comment_text; } /** * Retrieve all of the post categories, formatted for use in feeds. * * All of the categories for the current post in the feed loop, will be * retrieved and have feed markup added, so that they can easily be added to the * RSS2, Atom, or RSS1 and RSS0.91 RDF feeds. * * @since 2.1.0 * * @param string $type Optional, default is the type returned by get_default_feed(). * @return string All of the post categories for displaying in the feed. */ function get_the_category_rss( $type = null ) { if ( empty( $type ) ) { $type = get_default_feed(); } $categories = get_the_category(); $tags = get_the_tags(); $the_list = ''; $cat_names = array(); $filter = 'rss'; if ( 'atom' === $type ) { $filter = 'raw'; } if ( ! empty( $categories ) ) { foreach ( (array) $categories as $category ) { $cat_names[] = sanitize_term_field( 'name', $category->name, $category->term_id, 'category', $filter ); } } if ( ! empty( $tags ) ) { foreach ( (array) $tags as $tag ) { $cat_names[] = sanitize_term_field( 'name', $tag->name, $tag->term_id, 'post_tag', $filter ); } } $cat_names = array_unique( $cat_names ); foreach ( $cat_names as $cat_name ) { if ( 'rdf' === $type ) { $the_list .= "\t\t<dc:subject><![CDATA[$cat_name]]></dc:subject>\n"; } elseif ( 'atom' === $type ) { $the_list .= sprintf( '<category scheme="%1$s" term="%2$s" />', esc_attr( get_bloginfo_rss( 'url' ) ), esc_attr( $cat_name ) ); } else { $the_list .= "\t\t<category><![CDATA[" . html_entity_decode( $cat_name, ENT_COMPAT, get_option( 'blog_charset' ) ) . "]]></category>\n"; } } /** * Filters all of the post categories for display in a feed. * * @since 1.2.0 * * @param string $the_list All of the RSS post categories. * @param string $type Type of feed. Possible values include 'rss2', 'atom'. * Default 'rss2'. */ return apply_filters( 'the_category_rss', $the_list, $type ); } /** * Display the post categories in the feed. * * @since 0.71 * * @see get_the_category_rss() For better explanation. * * @param string $type Optional, default is the type returned by get_default_feed(). */ function the_category_rss( $type = null ) { echo get_the_category_rss( $type ); } /** * Display the HTML type based on the blog setting. * * The two possible values are either 'xhtml' or 'html'. * * @since 2.2.0 */ function html_type_rss() { $type = get_bloginfo( 'html_type' ); if ( strpos( $type, 'xhtml' ) !== false ) { $type = 'xhtml'; } else { $type = 'html'; } echo $type; } /** * Display the rss enclosure for the current post. * * Uses the global $post to check whether the post requires a password and if * the user has the password for the post. If not then it will return before * displaying. * * Also uses the function get_post_custom() to get the post's 'enclosure' * metadata field and parses the value to display the enclosure(s). The * enclosure(s) consist of enclosure HTML tag(s) with a URI and other * attributes. * * @since 1.5.0 */ function rss_enclosure() { if ( post_password_required() ) { return; } foreach ( (array) get_post_custom() as $key => $val ) { if ( 'enclosure' === $key ) { foreach ( (array) $val as $enc ) { $enclosure = explode( "\n", $enc ); // Only get the first element, e.g. 'audio/mpeg' from 'audio/mpeg mpga mp2 mp3'. $t = preg_split( '/[ \t]/', trim( $enclosure[2] ) ); $type = $t[0]; /** * Filters the RSS enclosure HTML link tag for the current post. * * @since 2.2.0 * * @param string $html_link_tag The HTML link tag with a URI and other attributes. */ echo apply_filters( 'rss_enclosure', '<enclosure url="' . esc_url( trim( $enclosure[0] ) ) . '" length="' . absint( trim( $enclosure[1] ) ) . '" type="' . esc_attr( $type ) . '" />' . "\n" ); } } } } /** * Display the atom enclosure for the current post. * * Uses the global $post to check whether the post requires a password and if * the user has the password for the post. If not then it will return before * displaying. * * Also uses the function get_post_custom() to get the post's 'enclosure' * metadata field and parses the value to display the enclosure(s). The * enclosure(s) consist of link HTML tag(s) with a URI and other attributes. * * @since 2.2.0 */ function atom_enclosure() { if ( post_password_required() ) { return; } foreach ( (array) get_post_custom() as $key => $val ) { if ( 'enclosure' === $key ) { foreach ( (array) $val as $enc ) { $enclosure = explode( "\n", $enc ); $url = ''; $type = ''; $length = 0; $mimes = get_allowed_mime_types(); // Parse URL. if ( isset( $enclosure[0] ) && is_string( $enclosure[0] ) ) { $url = trim( $enclosure[0] ); } // Parse length and type. for ( $i = 1; $i <= 2; $i++ ) { if ( isset( $enclosure[ $i ] ) ) { if ( is_numeric( $enclosure[ $i ] ) ) { $length = trim( $enclosure[ $i ] ); } elseif ( in_array( $enclosure[ $i ], $mimes, true ) ) { $type = trim( $enclosure[ $i ] ); } } } $html_link_tag = sprintf( "<link href=\"%s\" rel=\"enclosure\" length=\"%d\" type=\"%s\" />\n", esc_url( $url ), esc_attr( $length ), esc_attr( $type ) ); /** * Filters the atom enclosure HTML link tag for the current post. * * @since 2.2.0 * * @param string $html_link_tag The HTML link tag with a URI and other attributes. */ echo apply_filters( 'atom_enclosure', $html_link_tag ); } } } } /** * Determine the type of a string of data with the data formatted. * * Tell whether the type is text, HTML, or XHTML, per RFC 4287 section 3.1. * * In the case of WordPress, text is defined as containing no markup, * XHTML is defined as "well formed", and HTML as tag soup (i.e., the rest). * * Container div tags are added to XHTML values, per section 3.1.1.3. * * @link http://www.atomenabled.org/developers/syndication/atom-format-spec.php#rfc.section.3.1 * * @since 2.5.0 * * @param string $data Input string * @return array array(type, value) */ function prep_atom_text_construct( $data ) { if ( strpos( $data, '<' ) === false && strpos( $data, '&' ) === false ) { return array( 'text', $data ); } if ( ! function_exists( 'xml_parser_create' ) ) { trigger_error( __( "PHP's XML extension is not available. Please contact your hosting provider to enable PHP's XML extension." ) ); return array( 'html', "<![CDATA[$data]]>" ); } $parser = xml_parser_create(); xml_parse( $parser, '<div>' . $data . '</div>', true ); $code = xml_get_error_code( $parser ); xml_parser_free( $parser ); unset( $parser ); if ( ! $code ) { if ( strpos( $data, '<' ) === false ) { return array( 'text', $data ); } else { $data = "<div xmlns='http://www.w3.org/1999/xhtml'>$data</div>"; return array( 'xhtml', $data ); } } if ( strpos( $data, ']]>' ) === false ) { return array( 'html', "<![CDATA[$data]]>" ); } else { return array( 'html', htmlspecialchars( $data ) ); } } /** * Displays Site Icon in atom feeds. * * @since 4.3.0 * * @see get_site_icon_url() */ function atom_site_icon() { $url = get_site_icon_url( 32 ); if ( $url ) { echo '<icon>' . convert_chars( $url ) . "</icon>\n"; } } /** * Displays Site Icon in RSS2. * * @since 4.3.0 */ function rss2_site_icon() { $rss_title = get_wp_title_rss(); if ( empty( $rss_title ) ) { $rss_title = get_bloginfo_rss( 'name' ); } $url = get_site_icon_url( 32 ); if ( $url ) { echo ' <image> <url>' . convert_chars( $url ) . '</url> <title>' . $rss_title . '</title> <link>' . get_bloginfo_rss( 'url' ) . '</link> <width>32</width> <height>32</height> </image> ' . "\n"; } } /** * Returns the link for the currently displayed feed. * * @since 5.3.0 * * @return string Correct link for the atom:self element. */ function get_self_link() { $host = parse_url( home_url() ); return set_url_scheme( 'http://' . $host['host'] . wp_unslash( $_SERVER['REQUEST_URI'] ) ); } /** * Display the link for the currently displayed feed in a XSS safe way. * * Generate a correct link for the atom:self element. * * @since 2.5.0 */ function self_link() { /** * Filters the current feed URL. * * @since 3.6.0 * * @see set_url_scheme() * @see wp_unslash() * * @param string $feed_link The link for the feed with set URL scheme. */ echo esc_url( apply_filters( 'self_link', get_self_link() ) ); } /** * Get the UTC time of the most recently modified post from WP_Query. * * If viewing a comment feed, the time of the most recently modified * comment will be returned. * * @global WP_Query $wp_query WordPress Query object. * * @since 5.2.0 * * @param string $format Date format string to return the time in. * @return string|false The time in requested format, or false on failure. */ function get_feed_build_date( $format ) { global $wp_query; $datetime = false; $max_modified_time = false; $utc = new DateTimeZone( 'UTC' ); if ( ! empty( $wp_query ) && $wp_query->have_posts() ) { // Extract the post modified times from the posts. $modified_times = wp_list_pluck( $wp_query->posts, 'post_modified_gmt' ); // If this is a comment feed, check those objects too. if ( $wp_query->is_comment_feed() && $wp_query->comment_count ) { // Extract the comment modified times from the comments. $comment_times = wp_list_pluck( $wp_query->comments, 'comment_date_gmt' ); // Add the comment times to the post times for comparison. $modified_times = array_merge( $modified_times, $comment_times ); } // Determine the maximum modified time. $datetime = date_create_immutable_from_format( 'Y-m-d H:i:s', max( $modified_times ), $utc ); } if ( false === $datetime ) { // Fall back to last time any post was modified or published. $datetime = date_create_immutable_from_format( 'Y-m-d H:i:s', get_lastpostmodified( 'GMT' ), $utc ); } if ( false !== $datetime ) { $max_modified_time = $datetime->format( $format ); } /** * Filters the date the last post or comment in the query was modified. * * @since 5.2.0 * * @param string|false $max_modified_time Date the last post or comment was modified in the query, in UTC. * False on failure. * @param string $format The date format requested in get_feed_build_date(). */ return apply_filters( 'get_feed_build_date', $max_modified_time, $format ); } /** * Return the content type for specified feed type. * * @since 2.8.0 * * @param string $type Type of feed. Possible values include 'rss', rss2', 'atom', and 'rdf'. */ function feed_content_type( $type = '' ) { if ( empty( $type ) ) { $type = get_default_feed(); } $types = array( 'rss' => 'application/rss+xml', 'rss2' => 'application/rss+xml', 'rss-http' => 'text/xml', 'atom' => 'application/atom+xml', 'rdf' => 'application/rdf+xml', ); $content_type = ( ! empty( $types[ $type ] ) ) ? $types[ $type ] : 'application/octet-stream'; /** * Filters the content type for a specific feed type. * * @since 2.8.0 * * @param string $content_type Content type indicating the type of data that a feed contains. * @param string $type Type of feed. Possible values include 'rss', rss2', 'atom', and 'rdf'. */ return apply_filters( 'feed_content_type', $content_type, $type ); } /** * Build SimplePie object based on RSS or Atom feed from URL. * * @since 2.8.0 * * @param string|string[] $url URL of feed to retrieve. If an array of URLs, the feeds are merged * using SimplePie's multifeed feature. * See also {@link http://simplepie.org/wiki/faq/typical_multifeed_gotchas} * @return SimplePie|WP_Error SimplePie object on success or WP_Error object on failure. */ function fetch_feed( $url ) { if ( ! class_exists( 'SimplePie', false ) ) { require_once ABSPATH . WPINC . '/class-simplepie.php'; } require_once ABSPATH . WPINC . '/class-wp-feed-cache-transient.php'; require_once ABSPATH . WPINC . '/class-wp-simplepie-file.php'; require_once ABSPATH . WPINC . '/class-wp-simplepie-sanitize-kses.php'; $feed = new SimplePie(); $feed->set_sanitize_class( 'WP_SimplePie_Sanitize_KSES' ); // We must manually overwrite $feed->sanitize because SimplePie's constructor // sets it before we have a chance to set the sanitization class. $feed->sanitize = new WP_SimplePie_Sanitize_KSES(); // Register the cache handler using the recommended method for SimplePie 1.3 or later. if ( method_exists( 'SimplePie_Cache', 'register' ) ) { SimplePie_Cache::register( 'wp_transient', 'WP_Feed_Cache_Transient' ); $feed->set_cache_location( 'wp_transient' ); } else { // Back-compat for SimplePie 1.2.x. require_once ABSPATH . WPINC . '/class-wp-feed-cache.php'; $feed->set_cache_class( 'WP_Feed_Cache' ); } $feed->set_file_class( 'WP_SimplePie_File' ); $feed->set_feed_url( $url ); /** This filter is documented in wp-includes/class-wp-feed-cache-transient.php */ $feed->set_cache_duration( apply_filters( 'wp_feed_cache_transient_lifetime', 12 * HOUR_IN_SECONDS, $url ) ); /** * Fires just before processing the SimplePie feed object. * * @since 3.0.0 * * @param SimplePie $feed SimplePie feed object (passed by reference). * @param string|string[] $url URL of feed or array of URLs of feeds to retrieve. */ do_action_ref_array( 'wp_feed_options', array( &$feed, $url ) ); $feed->init(); $feed->set_output_encoding( get_option( 'blog_charset' ) ); if ( $feed->error() ) { return new WP_Error( 'simplepie-error', $feed->error() ); } return $feed; }
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