Gecko [ www.foryou-vip.com ]

Name	Size	Permission	Date
ID3	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
IXR	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
PHPMailer	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
Requests	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
SimplePie	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
Text	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
assets	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
block-patterns	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
block-supports	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
blocks	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
certificates	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
css	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
customize	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
fonts	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
html-api	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
images	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
js	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
php-compat	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
pomo	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
rest-api	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
sitemaps	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
sodium_compat	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
style-engine	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
theme-compat	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
widgets	[ DIR ]	drwxr-xr-x	2025-11-08 11:17
admin-bar.php	34.31 KB	-rw-r--r--	2023-08-16 10:52
atomlib.php	11.67 KB	-rw-r--r--	2022-04-21 13:24
author-template.php	18.51 KB	-rw-r--r--	2023-08-16 10:52
block-editor.php	26.95 KB	-rw-r--r--	2023-08-16 10:52
block-i18n.json	316 B	-rw-r--r--	2021-08-11 11:08
block-patterns.php	15.53 KB	-rw-r--r--	2023-08-16 10:52
block-template-utils.php	47.98 KB	-rw-r--r--	2023-08-16 10:52
block-template.php	10.34 KB	-rw-r--r--	2023-08-16 10:52
blocks.php	53.85 KB	-rw-r--r--	2023-08-16 10:52
bookmark-template.php	12.61 KB	-rw-r--r--	2023-08-16 10:52
bookmark.php	15.02 KB	-rw-r--r--	2023-08-16 10:52
cache-compat.php	5.83 KB	-rw-r--r--	2022-10-10 20:22
cache.php	13.16 KB	-rw-r--r--	2022-10-10 20:22
canonical.php	32.56 KB	-rw-r--r--	2023-08-16 10:52
capabilities.php	39.09 KB	-rw-r--r--	2023-08-16 10:52
category-template.php	55.67 KB	-rw-r--r--	2023-08-16 10:52
category.php	12.4 KB	-rw-r--r--	2023-08-16 10:52
class-IXR.php	2.48 KB	-rw-r--r--	2020-02-06 07:33
class-feed.php	529 B	-rw-r--r--	2020-02-06 07:33
class-http.php	367 B	-rw-r--r--	2022-06-17 13:20
class-json.php	42.66 KB	-rw-r--r--	2023-08-16 10:52
class-oembed.php	401 B	-rw-r--r--	2022-06-17 13:20
class-phpass.php	6.55 KB	-rw-r--r--	2023-08-16 10:52
class-phpmailer.php	664 B	-rw-r--r--	2020-07-21 14:58
class-pop3.php	20.48 KB	-rw-r--r--	2023-08-16 10:52
class-requests.php	2.18 KB	-rw-r--r--	2023-08-16 10:52
class-simplepie.php	95.82 KB	-rw-r--r--	2023-08-16 10:52
class-smtp.php	457 B	-rw-r--r--	2021-01-26 14:45
class-snoopy.php	36.83 KB	-rw-r--r--	2023-08-16 10:52
class-walker-category-dropdown.php	2.42 KB	-rw-r--r--	2022-01-30 20:25
class-walker-category.php	8.28 KB	-rw-r--r--	2023-08-16 10:52
class-walker-comment.php	13.88 KB	-rw-r--r--	2022-01-30 20:25
class-walker-nav-menu.php	11.05 KB	-rw-r--r--	2023-08-16 10:52
class-walker-page-dropdown.php	2.65 KB	-rw-r--r--	2023-08-16 10:52
class-walker-page.php	7.44 KB	-rw-r--r--	2023-08-16 10:52
class-wp-admin-bar.php	16.96 KB	-rw-r--r--	2023-08-16 10:52
class-wp-ajax-response.php	5.14 KB	-rw-r--r--	2022-09-12 17:47
class-wp-application-passwords.php	12.55 KB	-rw-r--r--	2023-08-16 10:52
class-wp-block-editor-context.php	1.32 KB	-rw-r--r--	2022-09-12 17:47
class-wp-block-list.php	4.64 KB	-rw-r--r--	2022-09-12 17:47
class-wp-block-parser-block.php	2.5 KB	-rw-r--r--	2023-08-16 10:52
class-wp-block-parser-frame.php	1.87 KB	-rw-r--r--	2023-08-16 10:52
class-wp-block-parser.php	11.49 KB	-rw-r--r--	2023-08-16 10:52
class-wp-block-pattern-categories-registry.php	5.25 KB	-rw-r--r--	2022-09-12 17:47
class-wp-block-patterns-registry.php	8.2 KB	-rw-r--r--	2023-08-16 10:52
class-wp-block-styles-registry.php	5.75 KB	-rw-r--r--	2022-09-12 17:47
class-wp-block-supports.php	5.39 KB	-rw-r--r--	2023-08-16 10:52
class-wp-block-template.php	1.91 KB	-rw-r--r--	2023-08-16 10:52
class-wp-block-type-registry.php	4.56 KB	-rw-r--r--	2022-09-12 17:47
class-wp-block-type.php	13.97 KB	-rw-r--r--	2023-08-16 10:52
class-wp-block.php	8.21 KB	-rw-r--r--	2023-08-16 10:52
class-wp-classic-to-block-menu-converter.php	3.84 KB	-rw-r--r--	2023-08-16 10:52
class-wp-comment-query.php	46.71 KB	-rw-r--r--	2023-08-16 10:52
class-wp-comment.php	9.14 KB	-rw-r--r--	2023-08-16 10:52
class-wp-customize-control.php	25.24 KB	-rw-r--r--	2023-08-16 10:52
class-wp-customize-manager.php	197.42 KB	-rw-r--r--	2023-08-16 10:52
class-wp-customize-nav-menus.php	55.96 KB	-rw-r--r--	2023-08-16 10:52
class-wp-customize-panel.php	10.42 KB	-rw-r--r--	2023-08-16 10:52
class-wp-customize-section.php	10.98 KB	-rw-r--r--	2023-08-16 10:52
class-wp-customize-setting.php	29.19 KB	-rw-r--r--	2022-09-12 17:47
class-wp-customize-widgets.php	69.95 KB	-rw-r--r--	2023-08-16 10:52
class-wp-date-query.php	34.88 KB	-rw-r--r--	2023-08-16 10:52
class-wp-dependencies.php	13.73 KB	-rw-r--r--	2023-08-16 10:52
class-wp-dependency.php	2.57 KB	-rw-r--r--	2023-08-16 10:52
class-wp-duotone.php	38.44 KB	-rw-r--r--	2023-08-16 10:52
class-wp-editor.php	70.39 KB	-rw-r--r--	2023-08-16 10:52
class-wp-embed.php	15.62 KB	-rw-r--r--	2023-08-16 10:52
class-wp-error.php	7.33 KB	-rw-r--r--	2023-08-16 10:52
class-wp-fatal-error-handler.php	7.69 KB	-rw-r--r--	2023-08-16 10:52
class-wp-feed-cache-transient.php	2.53 KB	-rw-r--r--	2022-09-12 17:47
class-wp-feed-cache.php	996 B	-rw-r--r--	2022-09-12 17:47
class-wp-hook.php	15.26 KB	-rw-r--r--	2023-08-16 10:52
class-wp-http-cookie.php	7.22 KB	-rw-r--r--	2023-08-16 10:52
class-wp-http-curl.php	12.2 KB	-rw-r--r--	2023-08-16 10:52
class-wp-http-encoding.php	6.53 KB	-rw-r--r--	2023-08-16 10:52
class-wp-http-ixr-client.php	3.42 KB	-rw-r--r--	2022-09-12 17:47
class-wp-http-proxy.php	5.84 KB	-rw-r--r--	2023-08-16 10:52
class-wp-http-requests-hooks.php	1.97 KB	-rw-r--r--	2023-08-16 10:52
class-wp-http-requests-response.php	4.3 KB	-rw-r--r--	2023-08-16 10:52
class-wp-http-response.php	2.91 KB	-rw-r--r--	2022-09-12 17:47
class-wp-http-streams.php	16.42 KB	-rw-r--r--	2023-08-16 10:52
class-wp-http.php	39.4 KB	-rw-r--r--	2023-08-16 10:52
class-wp-image-editor-gd.php	16.23 KB	-rw-r--r--	2023-08-16 10:52
class-wp-image-editor-imagick.php	29.29 KB	-rw-r--r--	2023-08-16 10:52
class-wp-image-editor.php	16.73 KB	-rw-r--r--	2023-08-16 10:52
class-wp-list-util.php	7.27 KB	-rw-r--r--	2023-08-16 10:52
class-wp-locale-switcher.php	6.41 KB	-rw-r--r--	2023-08-16 10:52
class-wp-locale.php	15.74 KB	-rw-r--r--	2023-08-16 10:52
class-wp-matchesmapregex.php	1.78 KB	-rw-r--r--	2022-09-12 17:47
class-wp-meta-query.php	29.82 KB	-rw-r--r--	2023-08-16 10:52
class-wp-metadata-lazyloader.php	6.67 KB	-rw-r--r--	2023-08-16 10:52
class-wp-navigation-fallback.php	6.73 KB	-rw-r--r--	2023-08-16 10:52
class-wp-network-query.php	18.84 KB	-rw-r--r--	2023-08-16 10:52
class-wp-network.php	11.9 KB	-rw-r--r--	2023-08-16 10:52
class-wp-object-cache.php	17.18 KB	-rw-r--r--	2023-08-16 10:52
class-wp-oembed-controller.php	6.72 KB	-rw-r--r--	2023-08-16 10:52
class-wp-oembed.php	30.66 KB	-rw-r--r--	2023-08-16 10:52
class-wp-paused-extensions-storage.php	4.94 KB	-rw-r--r--	2022-09-12 17:47
class-wp-post-type.php	25.36 KB	-rw-r--r--	2023-08-16 10:52
class-wp-post.php	6.33 KB	-rw-r--r--	2022-09-12 17:47
class-wp-query.php	147.17 KB	-rw-r--r--	2023-08-16 10:52
class-wp-recovery-mode-cookie-service.php	6.72 KB	-rw-r--r--	2022-10-04 05:59
class-wp-recovery-mode-email-service.php	10.92 KB	-rw-r--r--	2023-08-16 10:52
class-wp-recovery-mode-key-service.php	4.4 KB	-rw-r--r--	2023-08-16 10:52
class-wp-recovery-mode-link-service.php	3.38 KB	-rw-r--r--	2022-09-12 17:47
class-wp-recovery-mode.php	11.17 KB	-rw-r--r--	2023-08-16 10:52
class-wp-rewrite.php	61.56 KB	-rw-r--r--	2023-08-16 10:52
class-wp-role.php	2.46 KB	-rw-r--r--	2022-09-12 17:47
class-wp-roles.php	8.38 KB	-rw-r--r--	2022-10-24 21:25
class-wp-scripts.php	27.69 KB	-rw-r--r--	2023-08-16 10:52
class-wp-session-tokens.php	7.28 KB	-rw-r--r--	2022-09-12 17:47
class-wp-simplepie-file.php	3.32 KB	-rw-r--r--	2023-08-16 10:52
class-wp-simplepie-sanitize-kses.php	1.76 KB	-rw-r--r--	2022-09-12 17:47
class-wp-site-query.php	30.29 KB	-rw-r--r--	2023-08-16 10:52
class-wp-site.php	7.28 KB	-rw-r--r--	2022-09-12 17:47
class-wp-styles.php	10.64 KB	-rw-r--r--	2023-08-16 10:52
class-wp-tax-query.php	19.09 KB	-rw-r--r--	2023-08-16 10:52
class-wp-taxonomy.php	18.13 KB	-rw-r--r--	2023-08-16 10:52
class-wp-term-query.php	39.5 KB	-rw-r--r--	2023-08-16 10:52
class-wp-term.php	5.17 KB	-rw-r--r--	2022-09-12 17:47
class-wp-text-diff-renderer-inline.php	830 B	-rw-r--r--	2023-08-16 10:52
class-wp-text-diff-renderer-table.php	16.78 KB	-rw-r--r--	2023-08-16 10:52
class-wp-textdomain-registry.php	5.84 KB	-rw-r--r--	2023-08-16 10:52
class-wp-theme-json-data.php	1.52 KB	-rw-r--r--	2022-10-11 17:00
class-wp-theme-json-resolver.php	24.09 KB	-rw-r--r--	2023-08-16 10:52
class-wp-theme-json-schema.php	4.2 KB	-rw-r--r--	2023-08-16 10:52
class-wp-theme-json.php	125.74 KB	-rw-r--r--	2023-08-16 10:52
class-wp-theme.php	54.05 KB	-rw-r--r--	2023-08-16 10:52
class-wp-user-meta-session-tokens.php	2.92 KB	-rw-r--r--	2019-01-09 06:04
class-wp-user-query.php	41.25 KB	-rw-r--r--	2023-08-16 10:52
class-wp-user-request.php	2.17 KB	-rw-r--r--	2022-09-12 17:47
class-wp-user.php	22.23 KB	-rw-r--r--	2023-08-16 10:52
class-wp-walker.php	12.86 KB	-rw-r--r--	2022-09-12 17:47
class-wp-widget-factory.php	3.27 KB	-rw-r--r--	2022-09-12 17:47
class-wp-widget.php	17.95 KB	-rw-r--r--	2023-08-16 10:52
class-wp-xmlrpc-server.php	209.11 KB	-rw-r--r--	2023-08-16 10:52
class-wp.php	25.37 KB	-rw-r--r--	2023-08-16 10:52
class-wpdb.php	117.6 KB	-rw-r--r--	2023-08-16 10:52
class.wp-dependencies.php	373 B	-rw-r--r--	2022-09-20 16:17
class.wp-scripts.php	343 B	-rw-r--r--	2022-09-20 16:17
class.wp-styles.php	338 B	-rw-r--r--	2022-09-20 16:17
comment-template.php	98.94 KB	-rw-r--r--	2023-08-16 10:52
comment.php	125.52 KB	-rw-r--r--	2023-08-16 10:52
compat.php	14.86 KB	-rw-r--r--	2023-08-16 10:52
cron.php	40.57 KB	-rw-r--r--	2023-08-16 10:52
date.php	400 B	-rw-r--r--	2022-06-17 13:20
default-constants.php	10.72 KB	-rw-r--r--	2023-08-16 10:52
default-filters.php	31.87 KB	-rw-r--r--	2023-08-16 10:52
default-widgets.php	2.17 KB	-rw-r--r--	2021-05-25 10:27
deprecated.php	155.76 KB	-rw-r--r--	2023-08-16 10:52
embed-template.php	338 B	-rw-r--r--	2022-06-17 13:20
embed.php	36.59 KB	-rw-r--r--	2023-08-16 10:52
error-protection.php	4.02 KB	-rw-r--r--	2023-08-16 10:52
feed-atom-comments.php	5.32 KB	-rw-r--r--	2023-08-16 10:52
feed-atom.php	2.98 KB	-rw-r--r--	2021-11-29 10:52
feed-rdf.php	2.61 KB	-rw-r--r--	2020-01-29 01:45
feed-rss.php	1.16 KB	-rw-r--r--	2020-01-29 01:45
feed-rss2-comments.php	3.98 KB	-rw-r--r--	2023-08-16 10:52
feed-rss2.php	3.71 KB	-rw-r--r--	2020-01-29 01:45
feed.php	22.52 KB	-rw-r--r--	2023-08-16 10:52
formatting.php	326.41 KB	-rw-r--r--	2023-08-16 10:52
functions.php	259.35 KB	-rw-r--r--	2023-08-16 10:52
functions.wp-scripts.php	14.41 KB	-rw-r--r--	2023-08-16 10:52
functions.wp-styles.php	8.38 KB	-rw-r--r--	2023-08-16 10:52
general-template.php	163.79 KB	-rw-r--r--	2023-08-16 10:52
global-styles-and-settings.php	18.4 KB	-rw-r--r--	2023-08-16 10:52
http.php	23.29 KB	-rw-r--r--	2023-08-16 10:52
https-detection.php	6.35 KB	-rw-r--r--	2023-08-16 10:52
https-migration.php	4.63 KB	-rw-r--r--	2023-08-16 10:52
kses.php	69.99 KB	-rw-r--r--	2023-08-16 10:52
l10n.php	61.31 KB	-rw-r--r--	2023-08-16 10:52
link-template.php	150.89 KB	-rw-r--r--	2023-08-16 10:52
load.php	52.69 KB	-rw-r--r--	2023-08-16 10:52
locale.php	162 B	-rw-r--r--	2019-10-08 19:19
media-template.php	60.16 KB	-rw-r--r--	2023-08-16 10:52
media.php	199.68 KB	-rw-r--r--	2023-08-16 10:52
meta.php	61.79 KB	-rw-r--r--	2023-08-16 10:52
ms-blogs.php	25.03 KB	-rw-r--r--	2023-08-16 10:52
ms-default-constants.php	4.79 KB	-rw-r--r--	2023-08-16 10:52
ms-default-filters.php	6.48 KB	-rw-r--r--	2023-08-16 10:52
ms-deprecated.php	21.25 KB	-rw-r--r--	2023-08-16 10:52
ms-files.php	2.59 KB	-rw-r--r--	2023-08-16 10:52
ms-functions.php	89.12 KB	-rw-r--r--	2023-08-16 10:52
ms-load.php	19.4 KB	-rw-r--r--	2023-08-16 10:52
ms-network.php	3.69 KB	-rw-r--r--	2023-08-16 10:52
ms-settings.php	4.03 KB	-rw-r--r--	2023-08-16 10:52
ms-site.php	39.53 KB	-rw-r--r--	2023-08-16 10:52
nav-menu-template.php	25.18 KB	-rw-r--r--	2023-08-16 10:52
nav-menu.php	43.04 KB	-rw-r--r--	2023-08-16 10:52
navigation-fallback.php	2.24 KB	-rw-r--r--	2023-08-16 10:52
option.php	78.17 KB	-rw-r--r--	2023-08-16 10:52
pluggable-deprecated.php	6.12 KB	-rw-r--r--	2020-01-11 19:32
pluggable.php	108.86 KB	-rw-r--r--	2023-08-16 10:52
plugin.php	34.63 KB	-rw-r--r--	2023-08-16 10:52
post-formats.php	6.93 KB	-rw-r--r--	2023-08-16 10:52
post-template.php	65.34 KB	-rw-r--r--	2023-08-16 10:52
post-thumbnail-template.php	10.07 KB	-rw-r--r--	2023-08-16 10:52
post.php	267.33 KB	-rw-r--r--	2023-08-16 10:52
query.php	36.16 KB	-rw-r--r--	2023-08-16 10:52
registration-functions.php	200 B	-rw-r--r--	2020-11-12 12:17
registration.php	200 B	-rw-r--r--	2020-11-12 12:17
rest-api.php	94.73 KB	-rw-r--r--	2023-08-16 10:52
revision.php	24.84 KB	-rw-r--r--	2023-08-16 10:52
rewrite.php	19.06 KB	-rw-r--r--	2023-08-16 10:52
robots-template.php	5.06 KB	-rw-r--r--	2022-04-06 17:33
rss-functions.php	255 B	-rw-r--r--	2020-11-16 23:52
rss.php	22.48 KB	-rw-r--r--	2023-08-16 10:52
script-loader.php	133.87 KB	-rw-r--r--	2023-08-16 10:52
session.php	258 B	-rw-r--r--	2020-02-06 07:33
shortcodes.php	22.36 KB	-rw-r--r--	2023-08-16 10:52
sitemaps.php	3.16 KB	-rw-r--r--	2021-05-15 19:38
spl-autoload-compat.php	441 B	-rw-r--r--	2020-11-12 12:17
style-engine.php	7.03 KB	-rw-r--r--	2023-08-16 10:52
taxonomy.php	168.83 KB	-rw-r--r--	2023-08-16 10:52
template-canvas.php	592 B	-rw-r--r--	2021-12-10 21:30
template-loader.php	2.94 KB	-rw-r--r--	2020-05-26 11:37
template.php	22.78 KB	-rw-r--r--	2023-08-16 10:52
theme-i18n.json	1.12 KB	-rw-r--r--	2022-09-21 13:43
theme-previews.php	2.48 KB	-rw-r--r--	2023-08-16 10:52
theme-templates.php	5.39 KB	-rw-r--r--	2023-08-16 10:52
theme.json	7.03 KB	-rw-r--r--	2023-08-16 10:52
theme.php	127.81 KB	-rw-r--r--	2023-08-16 10:52
update.php	35.89 KB	-rw-r--r--	2023-08-16 10:52
user.php	166.91 KB	-rw-r--r--	2023-08-16 10:52
vars.php	5.7 KB	-rw-r--r--	2023-08-16 10:52
version.php	926 B	-rw-r--r--	2023-08-16 10:52
widgets.php	68.24 KB	-rw-r--r--	2023-08-16 10:52

Rename

<?php
/**
 * WordPress Post Thumbnail Template Functions.
 *
 * Support for post thumbnails.
 * Theme's functions.php must call add_theme_support( 'post-thumbnails' ) to use these.
 *
 * @package WordPress
 * @subpackage Template
 */

/**
 * Determines whether a post has an image attached.
 *
 * For more information on this and similar theme functions, check out
 * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
 * Conditional Tags} article in the Theme Developer Handbook.
 *
 * @since 2.9.0
 * @since 4.4.0 `$post` can be a post ID or WP_Post object.
 *
 * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
 * @return bool Whether the post has an image attached.
 */
function has_post_thumbnail( $post = null ) {
	$thumbnail_id  = get_post_thumbnail_id( $post );
	$has_thumbnail = (bool) $thumbnail_id;

/**
	 * Filters whether a post has a post thumbnail.
	 *
	 * @since 5.1.0
	 *
	 * @param bool             $has_thumbnail true if the post has a post thumbnail, otherwise false.
	 * @param int|WP_Post|null $post          Post ID or WP_Post object. Default is global `$post`.
	 * @param int|false        $thumbnail_id  Post thumbnail ID or false if the post does not exist.
	 */
	return (bool) apply_filters( 'has_post_thumbnail', $has_thumbnail, $post, $thumbnail_id );
}

/**
 * Retrieves the post thumbnail ID.
 *
 * @since 2.9.0
 * @since 4.4.0 `$post` can be a post ID or WP_Post object.
 * @since 5.5.0 The return value for a non-existing post
 *              was changed to false instead of an empty string.
 *
 * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
 * @return int|false Post thumbnail ID (which can be 0 if the thumbnail is not set),
 *                   or false if the post does not exist.
 */
function get_post_thumbnail_id( $post = null ) {
	$post = get_post( $post );

if ( ! $post ) {
		return false;
	}

$thumbnail_id = (int) get_post_meta( $post->ID, '_thumbnail_id', true );

/**
	 * Filters the post thumbnail ID.
	 *
	 * @since 5.9.0
	 *
	 * @param int|false        $thumbnail_id Post thumbnail ID or false if the post does not exist.
	 * @param int|WP_Post|null $post         Post ID or WP_Post object. Default is global `$post`.
	 */
	return (int) apply_filters( 'post_thumbnail_id', $thumbnail_id, $post );
}

/**
 * Displays the post thumbnail.
 *
 * When a theme adds 'post-thumbnail' support, a special 'post-thumbnail' image size
 * is registered, which differs from the 'thumbnail' image size managed via the
 * Settings > Media screen.
 *
 * When using the_post_thumbnail() or related functions, the 'post-thumbnail' image
 * size is used by default, though a different size can be specified instead as needed.
 *
 * @since 2.9.0
 *
 * @see get_the_post_thumbnail()
 *
 * @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array of
 *                           width and height values in pixels (in that order). Default 'post-thumbnail'.
 * @param string|array $attr Optional. Query string or array of attributes. Default empty.
 */
function the_post_thumbnail( $size = 'post-thumbnail', $attr = '' ) {
	echo get_the_post_thumbnail( null, $size, $attr );
}

/**
 * Updates cache for thumbnails in the current loop.
 *
 * @since 3.2.0
 *
 * @global WP_Query $wp_query WordPress Query object.
 *
 * @param WP_Query $wp_query Optional. A WP_Query instance. Defaults to the $wp_query global.
 */
function update_post_thumbnail_cache( $wp_query = null ) {
	if ( ! $wp_query ) {
		$wp_query = $GLOBALS['wp_query'];
	}

if ( $wp_query->thumbnails_cached ) {
		return;
	}

$thumb_ids = array();

foreach ( $wp_query->posts as $post ) {
		$id = get_post_thumbnail_id( $post->ID );
		if ( $id ) {
			$thumb_ids[] = $id;
		}
	}

if ( ! empty( $thumb_ids ) ) {
		_prime_post_caches( $thumb_ids, false, true );
	}

$wp_query->thumbnails_cached = true;
}

/**
 * Retrieves the post thumbnail.
 *
 * When a theme adds 'post-thumbnail' support, a special 'post-thumbnail' image size
 * is registered, which differs from the 'thumbnail' image size managed via the
 * Settings > Media screen.
 *
 * When using the_post_thumbnail() or related functions, the 'post-thumbnail' image
 * size is used by default, though a different size can be specified instead as needed.
 *
 * @since 2.9.0
 * @since 4.4.0 `$post` can be a post ID or WP_Post object.
 *
 * @param int|WP_Post  $post Optional. Post ID or WP_Post object.  Default is global `$post`.
 * @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array of
 *                           width and height values in pixels (in that order). Default 'post-thumbnail'.
 * @param string|array $attr Optional. Query string or array of attributes. Default empty.
 * @return string The post thumbnail image tag.
 */
function get_the_post_thumbnail( $post = null, $size = 'post-thumbnail', $attr = '' ) {
	$post = get_post( $post );

if ( ! $post ) {
		return '';
	}

$post_thumbnail_id = get_post_thumbnail_id( $post );

/**
	 * Filters the post thumbnail size.
	 *
	 * @since 2.9.0
	 * @since 4.9.0 Added the `$post_id` parameter.
	 *
	 * @param string|int[] $size    Requested image size. Can be any registered image size name, or
	 *                              an array of width and height values in pixels (in that order).
	 * @param int          $post_id The post ID.
	 */
	$size = apply_filters( 'post_thumbnail_size', $size, $post->ID );

if ( $post_thumbnail_id ) {

/**
		 * Fires before fetching the post thumbnail HTML.
		 *
		 * Provides "just in time" filtering of all filters in wp_get_attachment_image().
		 *
		 * @since 2.9.0
		 *
		 * @param int          $post_id           The post ID.
		 * @param int          $post_thumbnail_id The post thumbnail ID.
		 * @param string|int[] $size              Requested image size. Can be any registered image size name, or
		 *                                        an array of width and height values in pixels (in that order).
		 */
		do_action( 'begin_fetch_post_thumbnail_html', $post->ID, $post_thumbnail_id, $size );

if ( in_the_loop() ) {
			update_post_thumbnail_cache();
		}

$html = wp_get_attachment_image( $post_thumbnail_id, $size, false, $attr );

/**
		 * Fires after fetching the post thumbnail HTML.
		 *
		 * @since 2.9.0
		 *
		 * @param int          $post_id           The post ID.
		 * @param int          $post_thumbnail_id The post thumbnail ID.
		 * @param string|int[] $size              Requested image size. Can be any registered image size name, or
		 *                                        an array of width and height values in pixels (in that order).
		 */
		do_action( 'end_fetch_post_thumbnail_html', $post->ID, $post_thumbnail_id, $size );

} else {
		$html = '';
	}

/**
	 * Filters the post thumbnail HTML.
	 *
	 * @since 2.9.0
	 *
	 * @param string       $html              The post thumbnail HTML.
	 * @param int          $post_id           The post ID.
	 * @param int          $post_thumbnail_id The post thumbnail ID, or 0 if there isn't one.
	 * @param string|int[] $size              Requested image size. Can be any registered image size name, or
	 *                                        an array of width and height values in pixels (in that order).
	 * @param string|array $attr              Query string or array of attributes.
	 */
	return apply_filters( 'post_thumbnail_html', $html, $post->ID, $post_thumbnail_id, $size, $attr );
}

/**
 * Returns the post thumbnail URL.
 *
 * @since 4.4.0
 *
 * @param int|WP_Post  $post Optional. Post ID or WP_Post object.  Default is global `$post`.
 * @param string|int[] $size Optional. Registered image size to retrieve the source for or a flat array
 *                           of height and width dimensions. Default 'post-thumbnail'.
 * @return string|false Post thumbnail URL or false if no image is available. If `$size` does not match
 *                      any registered image size, the original image URL will be returned.
 */
function get_the_post_thumbnail_url( $post = null, $size = 'post-thumbnail' ) {
	$post_thumbnail_id = get_post_thumbnail_id( $post );

if ( ! $post_thumbnail_id ) {
		return false;
	}

$thumbnail_url = wp_get_attachment_image_url( $post_thumbnail_id, $size );

/**
	 * Filters the post thumbnail URL.
	 *
	 * @since 5.9.0
	 *
	 * @param string|false     $thumbnail_url Post thumbnail URL or false if the post does not exist.
	 * @param int|WP_Post|null $post          Post ID or WP_Post object. Default is global `$post`.
	 * @param string|int[]     $size          Registered image size to retrieve the source for or a flat array
	 *                                        of height and width dimensions. Default 'post-thumbnail'.
	 */
	return apply_filters( 'post_thumbnail_url', $thumbnail_url, $post, $size );
}

/**
 * Displays the post thumbnail URL.
 *
 * @since 4.4.0
 *
 * @param string|int[] $size Optional. Image size to use. Accepts any valid image size,
 *                           or an array of width and height values in pixels (in that order).
 *                           Default 'post-thumbnail'.
 */
function the_post_thumbnail_url( $size = 'post-thumbnail' ) {
	$url = get_the_post_thumbnail_url( null, $size );

if ( $url ) {
		echo esc_url( $url );
	}
}

/**
 * Returns the post thumbnail caption.
 *
 * @since 4.6.0
 *
 * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
 * @return string Post thumbnail caption.
 */
function get_the_post_thumbnail_caption( $post = null ) {
	$post_thumbnail_id = get_post_thumbnail_id( $post );

if ( ! $post_thumbnail_id ) {
		return '';
	}

$caption = wp_get_attachment_caption( $post_thumbnail_id );

if ( ! $caption ) {
		$caption = '';
	}

return $caption;
}

/**
 * Displays the post thumbnail caption.
 *
 * @since 4.6.0
 *
 * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
 */
function the_post_thumbnail_caption( $post = null ) {
	/**
	 * Filters the displayed post thumbnail caption.
	 *
	 * @since 4.6.0
	 *
	 * @param string $caption Caption for the given attachment.
	 */
	echo apply_filters( 'the_post_thumbnail_caption', get_the_post_thumbnail_caption( $post ) );
}