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ID3
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
IXR
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
PHPMailer
[ DIR ]
drwxrwxrwx
2024-07-15 18:49
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[ DIR ]
drwxrwxrwx
2024-03-18 16:41
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[ DIR ]
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2024-03-18 16:41
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[ DIR ]
drwxrwxrwx
2024-03-18 16:41
assets
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
block-patterns
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
block-supports
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
blocks
[ DIR ]
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2024-03-18 16:41
certificates
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
css
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
customize
[ DIR ]
drwxrwxrwx
2024-07-15 18:51
fonts
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
html-api
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
images
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
js
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
php-compat
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
pomo
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
rest-api
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
sitemaps
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
sodium_compat
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
style-engine
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
theme-compat
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
widgets
[ DIR ]
drwxrwxrwx
2024-03-18 16:41
admin-bar.php
35.15
KB
-rw-rw-rw-
2023-09-26 23:29
atomlib.php
11.67
KB
-rw-rw-rw-
2022-04-21 18:24
author-template.php
18.51
KB
-rw-rw-rw-
2023-05-15 00:58
block-editor.php
27.27
KB
-rw-rw-rw-
2023-09-28 00:40
block-i18n.json
316
B
-rw-rw-rw-
2021-08-11 16:08
block-patterns.php
12.64
KB
-rw-rw-rw-
2023-11-10 23:00
block-template-utils.php
47.35
KB
-rw-rw-rw-
2023-11-17 14:17
block-template.php
12
KB
-rw-rw-rw-
2023-10-28 01:36
blocks.php
69.78
KB
-rw-rw-rw-
2023-11-06 22:29
bookmark-template.php
12.61
KB
-rw-rw-rw-
2023-06-22 21:57
bookmark.php
15.02
KB
-rw-rw-rw-
2023-07-10 03:17
cache-compat.php
5.83
KB
-rw-rw-rw-
2022-10-11 01:22
cache.php
13.16
KB
-rw-rw-rw-
2022-10-11 01:22
canonical.php
33.27
KB
-rw-rw-rw-
2024-01-26 02:43
capabilities.php
39.09
KB
-rw-rw-rw-
2023-07-10 03:17
category-template.php
55.67
KB
-rw-rw-rw-
2023-09-26 07:27
category.php
12.41
KB
-rw-rw-rw-
2023-08-24 16:01
class-IXR.php
2.48
KB
-rw-rw-rw-
2020-02-06 13:33
class-feed.php
529
B
-rw-rw-rw-
2020-02-06 13:33
class-http.php
367
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2022-06-17 18:20
class-json.php
42.66
KB
-rw-rw-rw-
2023-02-03 20:35
class-oembed.php
401
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2022-06-17 18:20
class-phpass.php
6.55
KB
-rw-rw-rw-
2023-02-13 16:08
class-phpmailer.php
664
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-rw-rw-rw-
2020-07-21 19:58
class-pop3.php
20.48
KB
-rw-rw-rw-
2023-02-11 19:43
class-requests.php
2.18
KB
-rw-rw-rw-
2023-04-05 20:12
class-simplepie.php
95.82
KB
-rw-rw-rw-
2023-05-13 04:35
class-smtp.php
457
B
-rw-rw-rw-
2021-01-26 20:45
class-snoopy.php
36.83
KB
-rw-rw-rw-
2023-02-03 20:35
class-walker-category-dropdown.php
2.41
KB
-rw-rw-rw-
2023-09-14 19:46
class-walker-category.php
8.28
KB
-rw-rw-rw-
2023-09-08 16:32
class-walker-comment.php
13.88
KB
-rw-rw-rw-
2023-09-09 16:28
class-walker-nav-menu.php
11.05
KB
-rw-rw-rw-
2023-06-27 22:26
class-walker-page-dropdown.php
2.65
KB
-rw-rw-rw-
2023-09-14 19:46
class-walker-page.php
7.43
KB
-rw-rw-rw-
2023-09-14 19:46
class-wp-admin-bar.php
16.96
KB
-rw-rw-rw-
2023-07-10 03:17
class-wp-ajax-response.php
5.14
KB
-rw-rw-rw-
2022-09-12 22:47
class-wp-application-passwords.php
12.55
KB
-rw-rw-rw-
2023-05-09 05:37
class-wp-block-editor-context.php
1.32
KB
-rw-rw-rw-
2022-09-12 22:47
class-wp-block-list.php
4.66
KB
-rw-rw-rw-
2023-10-09 18:23
class-wp-block-parser-block.php
2.5
KB
-rw-rw-rw-
2023-06-27 07:45
class-wp-block-parser-frame.php
1.87
KB
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2023-06-27 07:45
class-wp-block-parser.php
11.26
KB
-rw-rw-rw-
2023-10-17 02:17
class-wp-block-pattern-categories-registry.php
5.25
KB
-rw-rw-rw-
2022-09-12 22:47
class-wp-block-patterns-registry.php
9.84
KB
-rw-rw-rw-
2023-10-17 22:48
class-wp-block-styles-registry.php
5.75
KB
-rw-rw-rw-
2022-09-12 22:47
class-wp-block-supports.php
5.39
KB
-rw-rw-rw-
2023-09-29 17:20
class-wp-block-template.php
1.91
KB
-rw-rw-rw-
2023-06-23 13:29
class-wp-block-type-registry.php
4.9
KB
-rw-rw-rw-
2023-10-12 19:34
class-wp-block-type.php
14.4
KB
-rw-rw-rw-
2023-09-14 20:25
class-wp-block.php
8.2
KB
-rw-rw-rw-
2023-09-09 16:28
class-wp-classic-to-block-menu-converter.php
3.99
KB
-rw-rw-rw-
2023-08-22 00:51
class-wp-comment-query.php
46.71
KB
-rw-rw-rw-
2023-09-09 16:28
class-wp-comment.php
9.15
KB
-rw-rw-rw-
2023-08-24 15:44
class-wp-customize-control.php
25.24
KB
-rw-rw-rw-
2023-09-08 16:32
class-wp-customize-manager.php
197.52
KB
-rw-rw-rw-
2023-09-30 04:39
class-wp-customize-nav-menus.php
55.97
KB
-rw-rw-rw-
2023-09-26 04:05
class-wp-customize-panel.php
10.42
KB
-rw-rw-rw-
2023-09-10 16:04
class-wp-customize-section.php
10.98
KB
-rw-rw-rw-
2023-09-10 16:04
class-wp-customize-setting.php
29.19
KB
-rw-rw-rw-
2023-09-10 16:04
class-wp-customize-widgets.php
69.93
KB
-rw-rw-rw-
2023-09-26 04:05
class-wp-date-query.php
34.88
KB
-rw-rw-rw-
2023-06-22 21:36
class-wp-dependencies.php
13.73
KB
-rw-rw-rw-
2023-09-08 16:32
class-wp-dependency.php
2.57
KB
-rw-rw-rw-
2022-11-25 22:12
class-wp-duotone.php
38.52
KB
-rw-rw-rw-
2023-10-24 18:08
class-wp-editor.php
70.39
KB
-rw-rw-rw-
2023-07-15 03:59
class-wp-embed.php
15.62
KB
-rw-rw-rw-
2023-07-10 03:17
class-wp-error.php
7.33
KB
-rw-rw-rw-
2023-02-21 23:39
class-wp-fatal-error-handler.php
7.69
KB
-rw-rw-rw-
2023-02-23 17:38
class-wp-feed-cache-transient.php
2.53
KB
-rw-rw-rw-
2022-09-12 22:47
class-wp-feed-cache.php
969
B
-rw-rw-rw-
2023-08-10 08:06
class-wp-hook.php
15.63
KB
-rw-rw-rw-
2023-09-18 19:41
class-wp-http-cookie.php
7.22
KB
-rw-rw-rw-
2023-06-25 00:17
class-wp-http-curl.php
12.25
KB
-rw-rw-rw-
2023-09-22 01:29
class-wp-http-encoding.php
6.53
KB
-rw-rw-rw-
2023-06-22 21:57
class-wp-http-ixr-client.php
3.42
KB
-rw-rw-rw-
2022-09-12 22:47
class-wp-http-proxy.php
5.84
KB
-rw-rw-rw-
2023-06-22 21:36
class-wp-http-requests-hooks.php
1.97
KB
-rw-rw-rw-
2022-12-16 04:32
class-wp-http-requests-response.php
4.3
KB
-rw-rw-rw-
2023-10-11 14:05
class-wp-http-response.php
2.91
KB
-rw-rw-rw-
2022-09-12 22:47
class-wp-http-streams.php
16.46
KB
-rw-rw-rw-
2023-09-22 01:29
class-wp-http.php
39.63
KB
-rw-rw-rw-
2023-09-26 23:55
class-wp-image-editor-gd.php
17.11
KB
-rw-rw-rw-
2023-08-19 07:10
class-wp-image-editor-imagick.php
30.47
KB
-rw-rw-rw-
2023-09-08 16:32
class-wp-image-editor.php
17.17
KB
-rw-rw-rw-
2023-09-07 21:59
class-wp-list-util.php
7.27
KB
-rw-rw-rw-
2023-09-09 16:28
class-wp-locale-switcher.php
6.41
KB
-rw-rw-rw-
2023-07-10 04:25
class-wp-locale.php
15.74
KB
-rw-rw-rw-
2023-07-10 04:25
class-wp-matchesmapregex.php
1.78
KB
-rw-rw-rw-
2022-09-12 22:47
class-wp-meta-query.php
29.82
KB
-rw-rw-rw-
2023-09-09 16:28
class-wp-metadata-lazyloader.php
6.67
KB
-rw-rw-rw-
2023-05-11 18:15
class-wp-navigation-fallback.php
9
KB
-rw-rw-rw-
2023-10-06 21:06
class-wp-network-query.php
18.84
KB
-rw-rw-rw-
2023-03-10 23:30
class-wp-network.php
11.9
KB
-rw-rw-rw-
2023-07-12 16:46
class-wp-object-cache.php
17.18
KB
-rw-rw-rw-
2023-03-14 23:55
class-wp-oembed-controller.php
6.72
KB
-rw-rw-rw-
2022-11-13 20:51
class-wp-oembed.php
30.66
KB
-rw-rw-rw-
2023-07-10 04:25
class-wp-paused-extensions-storage.php
4.94
KB
-rw-rw-rw-
2022-09-12 22:47
class-wp-post-type.php
29.28
KB
-rw-rw-rw-
2023-10-10 21:05
class-wp-post.php
6.33
KB
-rw-rw-rw-
2022-09-12 22:47
class-wp-query.php
148.03
KB
-rw-rw-rw-
2023-10-13 06:41
class-wp-recovery-mode-cookie-service.php
6.72
KB
-rw-rw-rw-
2022-10-04 10:59
class-wp-recovery-mode-email-service.php
10.92
KB
-rw-rw-rw-
2023-05-02 22:45
class-wp-recovery-mode-key-service.php
4.4
KB
-rw-rw-rw-
2023-02-21 22:59
class-wp-recovery-mode-link-service.php
3.38
KB
-rw-rw-rw-
2022-09-12 22:47
class-wp-recovery-mode.php
11.17
KB
-rw-rw-rw-
2023-05-02 22:45
class-wp-rewrite.php
61.94
KB
-rw-rw-rw-
2023-09-09 16:28
class-wp-role.php
2.46
KB
-rw-rw-rw-
2023-09-08 16:32
class-wp-roles.php
8.38
KB
-rw-rw-rw-
2023-07-28 18:37
class-wp-scripts.php
27.99
KB
-rw-rw-rw-
2023-10-14 01:46
class-wp-session-tokens.php
7.28
KB
-rw-rw-rw-
2022-09-12 22:47
class-wp-simplepie-file.php
3.3
KB
-rw-rw-rw-
2023-08-10 08:06
class-wp-simplepie-sanitize-kses.php
1.73
KB
-rw-rw-rw-
2023-08-10 08:06
class-wp-site-query.php
30.29
KB
-rw-rw-rw-
2023-06-22 21:36
class-wp-site.php
7.28
KB
-rw-rw-rw-
2022-09-12 22:47
class-wp-styles.php
10.64
KB
-rw-rw-rw-
2023-05-02 22:45
class-wp-tax-query.php
19.09
KB
-rw-rw-rw-
2023-07-08 17:48
class-wp-taxonomy.php
18.13
KB
-rw-rw-rw-
2023-04-28 06:15
class-wp-term-query.php
40.05
KB
-rw-rw-rw-
2023-11-01 22:15
class-wp-term.php
5.17
KB
-rw-rw-rw-
2022-09-12 22:47
class-wp-text-diff-renderer-inline.php
829
B
-rw-rw-rw-
2023-09-08 16:32
class-wp-text-diff-renderer-table.php
18.37
KB
-rw-rw-rw-
2023-10-15 21:55
class-wp-textdomain-registry.php
5.84
KB
-rw-rw-rw-
2023-07-10 04:25
class-wp-theme-json-data.php
1.52
KB
-rw-rw-rw-
2023-09-08 16:32
class-wp-theme-json-resolver.php
24.06
KB
-rw-rw-rw-
2023-09-26 20:47
class-wp-theme-json-schema.php
4.12
KB
-rw-rw-rw-
2023-10-02 18:27
class-wp-theme-json.php
126.52
KB
-rw-rw-rw-
2023-10-10 10:43
class-wp-theme.php
62.76
KB
-rw-rw-rw-
2023-10-21 02:36
class-wp-user-meta-session-tokens.php
2.92
KB
-rw-rw-rw-
2019-01-09 12:04
class-wp-user-query.php
42.37
KB
-rw-rw-rw-
2023-09-08 03:45
class-wp-user-request.php
2.17
KB
-rw-rw-rw-
2022-09-12 22:47
class-wp-user.php
22.23
KB
-rw-rw-rw-
2023-07-10 19:53
class-wp-walker.php
12.86
KB
-rw-rw-rw-
2023-09-09 16:28
class-wp-widget-factory.php
3.27
KB
-rw-rw-rw-
2022-09-12 22:47
class-wp-widget.php
17.96
KB
-rw-rw-rw-
2023-08-25 08:28
class-wp-xmlrpc-server.php
209.12
KB
-rw-rw-rw-
2023-09-21 02:31
class-wp.php
25.51
KB
-rw-rw-rw-
2023-08-13 17:31
class-wpdb.php
116.66
KB
-rw-rw-rw-
2023-11-09 03:38
class.wp-dependencies.php
373
B
-rw-rw-rw-
2022-09-20 21:17
class.wp-scripts.php
343
B
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2022-09-20 21:17
class.wp-styles.php
338
B
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2022-09-20 21:17
comment-template.php
99.05
KB
-rw-rw-rw-
2023-09-26 04:05
comment.php
126.09
KB
-rw-rw-rw-
2023-09-30 00:13
compat.php
14.86
KB
-rw-rw-rw-
2023-09-09 16:28
cron.php
40.5
KB
-rw-rw-rw-
2023-09-11 12:27
date.php
400
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2022-06-17 18:20
default-constants.php
10.91
KB
-rw-rw-rw-
2023-09-27 00:33
default-filters.php
33.7
KB
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2024-01-25 02:26
default-widgets.php
2.17
KB
-rw-rw-rw-
2021-05-25 15:27
deprecated.php
179.5
KB
-rw-rw-rw-
2023-10-14 00:21
embed-template.php
338
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2022-06-17 18:20
embed.php
36.78
KB
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2023-09-26 00:06
error-protection.php
4.02
KB
-rw-rw-rw-
2023-05-02 22:45
feed-atom-comments.php
5.32
KB
-rw-rw-rw-
2023-07-29 07:31
feed-atom.php
2.98
KB
-rw-rw-rw-
2021-11-29 16:52
feed-rdf.php
2.61
KB
-rw-rw-rw-
2020-01-29 07:45
feed-rss.php
1.16
KB
-rw-rw-rw-
2020-01-29 07:45
feed-rss2-comments.php
3.98
KB
-rw-rw-rw-
2023-02-13 01:08
feed-rss2.php
3.71
KB
-rw-rw-rw-
2020-01-29 07:45
feed.php
22.52
KB
-rw-rw-rw-
2023-07-10 04:48
fonts.php
2.28
KB
-rw-rw-rw-
2023-09-08 00:30
formatting.php
327.07
KB
-rw-rw-rw-
2023-09-26 07:27
functions.php
269.73
KB
-rw-rw-rw-
2023-11-16 00:47
functions.wp-scripts.php
14.41
KB
-rw-rw-rw-
2023-11-01 22:15
functions.wp-styles.php
8.38
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-rw-rw-rw-
2023-01-15 21:57
general-template.php
163.79
KB
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2023-11-16 00:47
global-styles-and-settings.php
19.73
KB
-rw-rw-rw-
2023-08-25 02:59
http.php
23.29
KB
-rw-rw-rw-
2023-08-03 19:10
https-detection.php
5.53
KB
-rw-rw-rw-
2023-09-23 02:08
https-migration.php
4.63
KB
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2023-07-11 05:38
kses.php
70.21
KB
-rw-rw-rw-
2023-09-19 19:30
l10n.php
61.31
KB
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2023-08-19 00:29
link-template.php
152.42
KB
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2023-10-16 07:07
load.php
52.86
KB
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2023-10-09 21:49
locale.php
162
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2019-10-09 00:19
media-template.php
60.37
KB
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2023-09-26 21:45
media.php
202.5
KB
-rw-rw-rw-
2023-10-12 19:47
meta.php
62.58
KB
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2023-09-26 22:32
ms-blogs.php
25.03
KB
-rw-rw-rw-
2023-12-05 02:59
ms-default-constants.php
4.79
KB
-rw-rw-rw-
2023-07-11 05:48
ms-default-filters.php
6.48
KB
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2023-02-24 08:23
ms-deprecated.php
21.25
KB
-rw-rw-rw-
2023-06-22 21:57
ms-files.php
2.65
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-rw-rw-rw-
2023-08-23 22:53
ms-functions.php
89.12
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2023-07-11 05:48
ms-load.php
19.4
KB
-rw-rw-rw-
2023-07-11 05:48
ms-network.php
3.69
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2023-05-02 18:26
ms-settings.php
4.03
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2023-06-22 21:57
ms-site.php
39.55
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2023-09-09 16:28
nav-menu-template.php
25.18
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2023-02-16 07:04
nav-menu.php
43.04
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2023-07-11 05:48
option.php
89.2
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2023-10-31 06:23
pluggable-deprecated.php
6.12
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-rw-rw-rw-
2020-01-12 01:32
pluggable.php
110.37
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2023-10-03 23:15
plugin.php
34.63
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2023-06-08 14:54
post-formats.php
6.93
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template.php
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Rename
<?php /** * A class for displaying various tree-like structures. * * Extend the Walker class to use it, see examples below. Child classes * do not need to implement all of the abstract methods in the class. The child * only needs to implement the methods that are needed. * * @since 2.1.0 * * @package WordPress * @abstract */ #[AllowDynamicProperties] class Walker { /** * What the class handles. * * @since 2.1.0 * @var string */ public $tree_type; /** * DB fields to use. * * @since 2.1.0 * @var string[] */ public $db_fields; /** * Max number of pages walked by the paged walker. * * @since 2.7.0 * @var int */ public $max_pages = 1; /** * Whether the current element has children or not. * * To be used in start_el(). * * @since 4.0.0 * @var bool */ public $has_children; /** * Starts the list before the elements are added. * * The $args parameter holds additional values that may be used with the child * class methods. This method is called at the start of the output list. * * @since 2.1.0 * @abstract * * @param string $output Used to append additional content (passed by reference). * @param int $depth Depth of the item. * @param array $args An array of additional arguments. */ public function start_lvl( &$output, $depth = 0, $args = array() ) {} /** * Ends the list of after the elements are added. * * The $args parameter holds additional values that may be used with the child * class methods. This method finishes the list at the end of output of the elements. * * @since 2.1.0 * @abstract * * @param string $output Used to append additional content (passed by reference). * @param int $depth Depth of the item. * @param array $args An array of additional arguments. */ public function end_lvl( &$output, $depth = 0, $args = array() ) {} /** * Starts the element output. * * The $args parameter holds additional values that may be used with the child * class methods. Also includes the element output. * * @since 2.1.0 * @since 5.9.0 Renamed `$object` (a PHP reserved keyword) to `$data_object` for PHP 8 named parameter support. * @abstract * * @param string $output Used to append additional content (passed by reference). * @param object $data_object The data object. * @param int $depth Depth of the item. * @param array $args An array of additional arguments. * @param int $current_object_id Optional. ID of the current item. Default 0. */ public function start_el( &$output, $data_object, $depth = 0, $args = array(), $current_object_id = 0 ) {} /** * Ends the element output, if needed. * * The $args parameter holds additional values that may be used with the child class methods. * * @since 2.1.0 * @since 5.9.0 Renamed `$object` (a PHP reserved keyword) to `$data_object` for PHP 8 named parameter support. * @abstract * * @param string $output Used to append additional content (passed by reference). * @param object $data_object The data object. * @param int $depth Depth of the item. * @param array $args An array of additional arguments. */ public function end_el( &$output, $data_object, $depth = 0, $args = array() ) {} /** * Traverses elements to create list from elements. * * Display one element if the element doesn't have any children otherwise, * display the element and its children. Will only traverse up to the max * depth and no ignore elements under that depth. It is possible to set the * max depth to include all depths, see walk() method. * * This method should not be called directly, use the walk() method instead. * * @since 2.5.0 * * @param object $element Data object. * @param array $children_elements List of elements to continue traversing (passed by reference). * @param int $max_depth Max depth to traverse. * @param int $depth Depth of current element. * @param array $args An array of arguments. * @param string $output Used to append additional content (passed by reference). */ public function display_element( $element, &$children_elements, $max_depth, $depth, $args, &$output ) { if ( ! $element ) { return; } $id_field = $this->db_fields['id']; $id = $element->$id_field; // Display this element. $this->has_children = ! empty( $children_elements[ $id ] ); if ( isset( $args[0] ) && is_array( $args[0] ) ) { $args[0]['has_children'] = $this->has_children; // Back-compat. } $this->start_el( $output, $element, $depth, ...array_values( $args ) ); // Descend only when the depth is right and there are children for this element. if ( ( 0 == $max_depth || $max_depth > $depth + 1 ) && isset( $children_elements[ $id ] ) ) { foreach ( $children_elements[ $id ] as $child ) { if ( ! isset( $newlevel ) ) { $newlevel = true; // Start the child delimiter. $this->start_lvl( $output, $depth, ...array_values( $args ) ); } $this->display_element( $child, $children_elements, $max_depth, $depth + 1, $args, $output ); } unset( $children_elements[ $id ] ); } if ( isset( $newlevel ) && $newlevel ) { // End the child delimiter. $this->end_lvl( $output, $depth, ...array_values( $args ) ); } // End this element. $this->end_el( $output, $element, $depth, ...array_values( $args ) ); } /** * Displays array of elements hierarchically. * * Does not assume any existing order of elements. * * $max_depth = -1 means flatly display every element. * $max_depth = 0 means display all levels. * $max_depth > 0 specifies the number of display levels. * * @since 2.1.0 * @since 5.3.0 Formalized the existing `...$args` parameter by adding it * to the function signature. * * @param array $elements An array of elements. * @param int $max_depth The maximum hierarchical depth. * @param mixed ...$args Optional additional arguments. * @return string The hierarchical item output. */ public function walk( $elements, $max_depth, ...$args ) { $output = ''; // Invalid parameter or nothing to walk. if ( $max_depth < -1 || empty( $elements ) ) { return $output; } $parent_field = $this->db_fields['parent']; // Flat display. if ( -1 == $max_depth ) { $empty_array = array(); foreach ( $elements as $e ) { $this->display_element( $e, $empty_array, 1, 0, $args, $output ); } return $output; } /* * Need to display in hierarchical order. * Separate elements into two buckets: top level and children elements. * Children_elements is two dimensional array. Example: * Children_elements[10][] contains all sub-elements whose parent is 10. */ $top_level_elements = array(); $children_elements = array(); foreach ( $elements as $e ) { if ( empty( $e->$parent_field ) ) { $top_level_elements[] = $e; } else { $children_elements[ $e->$parent_field ][] = $e; } } /* * When none of the elements is top level. * Assume the first one must be root of the sub elements. */ if ( empty( $top_level_elements ) ) { $first = array_slice( $elements, 0, 1 ); $root = $first[0]; $top_level_elements = array(); $children_elements = array(); foreach ( $elements as $e ) { if ( $root->$parent_field == $e->$parent_field ) { $top_level_elements[] = $e; } else { $children_elements[ $e->$parent_field ][] = $e; } } } foreach ( $top_level_elements as $e ) { $this->display_element( $e, $children_elements, $max_depth, 0, $args, $output ); } /* * If we are displaying all levels, and remaining children_elements is not empty, * then we got orphans, which should be displayed regardless. */ if ( ( 0 == $max_depth ) && count( $children_elements ) > 0 ) { $empty_array = array(); foreach ( $children_elements as $orphans ) { foreach ( $orphans as $op ) { $this->display_element( $op, $empty_array, 1, 0, $args, $output ); } } } return $output; } /** * Produces a page of nested elements. * * Given an array of hierarchical elements, the maximum depth, a specific page number, * and number of elements per page, this function first determines all top level root elements * belonging to that page, then lists them and all of their children in hierarchical order. * * $max_depth = 0 means display all levels. * $max_depth > 0 specifies the number of display levels. * * @since 2.7.0 * @since 5.3.0 Formalized the existing `...$args` parameter by adding it * to the function signature. * * @param array $elements An array of elements. * @param int $max_depth The maximum hierarchical depth. * @param int $page_num The specific page number, beginning with 1. * @param int $per_page Number of elements per page. * @param mixed ...$args Optional additional arguments. * @return string XHTML of the specified page of elements. */ public function paged_walk( $elements, $max_depth, $page_num, $per_page, ...$args ) { if ( empty( $elements ) || $max_depth < -1 ) { return ''; } $output = ''; $parent_field = $this->db_fields['parent']; $count = -1; if ( -1 == $max_depth ) { $total_top = count( $elements ); } if ( $page_num < 1 || $per_page < 0 ) { // No paging. $paging = false; $start = 0; if ( -1 == $max_depth ) { $end = $total_top; } $this->max_pages = 1; } else { $paging = true; $start = ( (int) $page_num - 1 ) * (int) $per_page; $end = $start + $per_page; if ( -1 == $max_depth ) { $this->max_pages = ceil( $total_top / $per_page ); } } // Flat display. if ( -1 == $max_depth ) { if ( ! empty( $args[0]['reverse_top_level'] ) ) { $elements = array_reverse( $elements ); $oldstart = $start; $start = $total_top - $end; $end = $total_top - $oldstart; } $empty_array = array(); foreach ( $elements as $e ) { ++$count; if ( $count < $start ) { continue; } if ( $count >= $end ) { break; } $this->display_element( $e, $empty_array, 1, 0, $args, $output ); } return $output; } /* * Separate elements into two buckets: top level and children elements. * Children_elements is two dimensional array, e.g. * $children_elements[10][] contains all sub-elements whose parent is 10. */ $top_level_elements = array(); $children_elements = array(); foreach ( $elements as $e ) { if ( empty( $e->$parent_field ) ) { $top_level_elements[] = $e; } else { $children_elements[ $e->$parent_field ][] = $e; } } $total_top = count( $top_level_elements ); if ( $paging ) { $this->max_pages = ceil( $total_top / $per_page ); } else { $end = $total_top; } if ( ! empty( $args[0]['reverse_top_level'] ) ) { $top_level_elements = array_reverse( $top_level_elements ); $oldstart = $start; $start = $total_top - $end; $end = $total_top - $oldstart; } if ( ! empty( $args[0]['reverse_children'] ) ) { foreach ( $children_elements as $parent => $children ) { $children_elements[ $parent ] = array_reverse( $children ); } } foreach ( $top_level_elements as $e ) { ++$count; // For the last page, need to unset earlier children in order to keep track of orphans. if ( $end >= $total_top && $count < $start ) { $this->unset_children( $e, $children_elements ); } if ( $count < $start ) { continue; } if ( $count >= $end ) { break; } $this->display_element( $e, $children_elements, $max_depth, 0, $args, $output ); } if ( $end >= $total_top && count( $children_elements ) > 0 ) { $empty_array = array(); foreach ( $children_elements as $orphans ) { foreach ( $orphans as $op ) { $this->display_element( $op, $empty_array, 1, 0, $args, $output ); } } } return $output; } /** * Calculates the total number of root elements. * * @since 2.7.0 * * @param array $elements Elements to list. * @return int Number of root elements. */ public function get_number_of_root_elements( $elements ) { $num = 0; $parent_field = $this->db_fields['parent']; foreach ( $elements as $e ) { if ( empty( $e->$parent_field ) ) { ++$num; } } return $num; } /** * Unsets all the children for a given top level element. * * @since 2.7.0 * * @param object $element The top level element. * @param array $children_elements The children elements. */ public function unset_children( $element, &$children_elements ) { if ( ! $element || ! $children_elements ) { return; } $id_field = $this->db_fields['id']; $id = $element->$id_field; if ( ! empty( $children_elements[ $id ] ) && is_array( $children_elements[ $id ] ) ) { foreach ( (array) $children_elements[ $id ] as $child ) { $this->unset_children( $child, $children_elements ); } } unset( $children_elements[ $id ] ); } }