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Name	Size	Permission
ID3	[ DIR ]	drwxr-xr-x
IXR	[ DIR ]	drwxr-xr-x
PHPMailer	[ DIR ]	drwxr-xr-x
Requests	[ DIR ]	drwxr-xr-x
SimplePie	[ DIR ]	drwxr-xr-x
Text	[ DIR ]	drwxr-xr-x
assets	[ DIR ]	drwxr-xr-x
block-bindings	[ DIR ]	drwxr-xr-x
block-patterns	[ DIR ]	drwxr-xr-x
block-supports	[ DIR ]	drwxr-xr-x
blocks	[ DIR ]	drwxr-xr-x
certificates	[ DIR ]	drwxr-xr-x
css	[ DIR ]	drwxr-xr-x
customize	[ DIR ]	drwxr-xr-x
fonts	[ DIR ]	drwxr-xr-x
html-api	[ DIR ]	drwxr-xr-x
images	[ DIR ]	drwxr-xr-x
interactivity-api	[ DIR ]	drwxr-xr-x
js	[ DIR ]	drwxr-xr-x
l10n	[ DIR ]	drwxr-xr-x
php-compat	[ DIR ]	drwxr-xr-x
pomo	[ DIR ]	drwxr-xr-x
rest-api	[ DIR ]	drwxr-xr-x
sitemaps	[ DIR ]	drwxr-xr-x
sodium_compat	[ DIR ]	drwxr-xr-x
style-engine	[ DIR ]	drwxr-xr-x
theme-compat	[ DIR ]	drwxr-xr-x
widgets	[ DIR ]	drwxr-xr-x
admin-bar.php	36.03 KB	-rw-r--r--
atomlib.php	11.67 KB	-rw-r--r--
author-template.php	18.51 KB	-rw-r--r--
block-bindings.php	5.51 KB	-rw-r--r--
block-editor.php	27.27 KB	-rw-r--r--
block-i18n.json	316 B	-rw-r--r--
block-patterns.php	12.85 KB	-rw-r--r--
block-template-utils.php	52.6 KB	-rw-r--r--
block-template.php	12 KB	-rw-r--r--
blocks.php	80 KB	-rw-r--r--
bookmark-template.php	12.61 KB	-rw-r--r--
bookmark.php	15.06 KB	-rw-r--r--
cache-compat.php	5.83 KB	-rw-r--r--
cache.php	13.16 KB	-rw-r--r--
canonical.php	33.7 KB	-rw-r--r--
capabilities.php	39.09 KB	-rw-r--r--
category-template.php	55.67 KB	-rw-r--r--
category.php	12.41 KB	-rw-r--r--
class-IXR.php	2.48 KB	-rw-r--r--
class-avif-info.php	28.92 KB	-rw-r--r--
class-feed.php	529 B	-rw-r--r--
class-http.php	367 B	-rw-r--r--
class-json.php	42.66 KB	-rw-r--r--
class-oembed.php	401 B	-rw-r--r--
class-phpass.php	6.55 KB	-rw-r--r--
class-phpmailer.php	664 B	-rw-r--r--
class-pop3.php	20.48 KB	-rw-r--r--
class-requests.php	2.18 KB	-rw-r--r--
class-simplepie.php	95.76 KB	-rw-r--r--
class-smtp.php	457 B	-rw-r--r--
class-snoopy.php	36.83 KB	-rw-r--r--
class-walker-category-dropdown...	2.41 KB	-rw-r--r--
class-walker-category.php	8.28 KB	-rw-r--r--
class-walker-comment.php	13.88 KB	-rw-r--r--
class-walker-nav-menu.php	11.05 KB	-rw-r--r--
class-walker-page-dropdown.php	2.65 KB	-rw-r--r--
class-walker-page.php	7.43 KB	-rw-r--r--
class-wp-admin-bar.php	17.43 KB	-rw-r--r--
class-wp-ajax-response.php	5.14 KB	-rw-r--r--
class-wp-application-passwords...	12.55 KB	-rw-r--r--
class-wp-block-bindings-regist...	8.78 KB	-rw-r--r--
class-wp-block-bindings-source...	2.13 KB	-rw-r--r--
class-wp-block-editor-context....	1.32 KB	-rw-r--r--
class-wp-block-list.php	4.65 KB	-rw-r--r--
class-wp-block-parser-block.ph...	2.5 KB	-rw-r--r--
class-wp-block-parser-frame.ph...	1.87 KB	-rw-r--r--
class-wp-block-parser.php	11.26 KB	-rw-r--r--
class-wp-block-pattern-categor...	5.25 KB	-rw-r--r--
class-wp-block-patterns-regist...	11.34 KB	-rw-r--r--
class-wp-block-styles-registry...	5.75 KB	-rw-r--r--
class-wp-block-supports.php	5.39 KB	-rw-r--r--
class-wp-block-template.php	1.91 KB	-rw-r--r--
class-wp-block-type-registry.p...	4.9 KB	-rw-r--r--
class-wp-block-type.php	16.81 KB	-rw-r--r--
class-wp-block.php	16.71 KB	-rw-r--r--
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class-wp-comment-query.php	46.86 KB	-rw-r--r--
class-wp-comment.php	9.15 KB	-rw-r--r--
class-wp-customize-control.php	25.25 KB	-rw-r--r--
class-wp-customize-manager.php	197.52 KB	-rw-r--r--
class-wp-customize-nav-menus.p...	55.99 KB	-rw-r--r--
class-wp-customize-panel.php	10.42 KB	-rw-r--r--
class-wp-customize-section.php	10.98 KB	-rw-r--r--
class-wp-customize-setting.php	29.19 KB	-rw-r--r--
class-wp-customize-widgets.php	69.93 KB	-rw-r--r--
class-wp-date-query.php	34.89 KB	-rw-r--r--
class-wp-dependencies.php	13.73 KB	-rw-r--r--
class-wp-dependency.php	2.57 KB	-rw-r--r--
class-wp-duotone.php	38.61 KB	-rw-r--r--
class-wp-editor.php	70.47 KB	-rw-r--r--
class-wp-embed.php	15.62 KB	-rw-r--r--
class-wp-error.php	7.33 KB	-rw-r--r--
class-wp-fatal-error-handler.p...	7.76 KB	-rw-r--r--
class-wp-feed-cache-transient....	2.53 KB	-rw-r--r--
class-wp-feed-cache.php	969 B	-rw-r--r--
class-wp-hook.php	15.63 KB	-rw-r--r--
class-wp-http-cookie.php	7.22 KB	-rw-r--r--
class-wp-http-curl.php	12.25 KB	-rw-r--r--
class-wp-http-encoding.php	6.53 KB	-rw-r--r--
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class-wp-http-proxy.php	5.84 KB	-rw-r--r--
class-wp-http-requests-hooks.p...	1.97 KB	-rw-r--r--
class-wp-http-requests-respons...	4.3 KB	-rw-r--r--
class-wp-http-response.php	2.91 KB	-rw-r--r--
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class-wp-http.php	39.76 KB	-rw-r--r--
class-wp-image-editor-gd.php	18.44 KB	-rw-r--r--
class-wp-image-editor-imagick....	31.35 KB	-rw-r--r--
class-wp-image-editor.php	17.19 KB	-rw-r--r--
class-wp-list-util.php	7.27 KB	-rw-r--r--
class-wp-locale-switcher.php	6.47 KB	-rw-r--r--
class-wp-locale.php	15.74 KB	-rw-r--r--
class-wp-matchesmapregex.php	1.79 KB	-rw-r--r--
class-wp-meta-query.php	29.82 KB	-rw-r--r--
class-wp-metadata-lazyloader.p...	6.67 KB	-rw-r--r--
class-wp-navigation-fallback.p...	9 KB	-rw-r--r--
class-wp-network-query.php	18.99 KB	-rw-r--r--
class-wp-network.php	11.9 KB	-rw-r--r--
class-wp-object-cache.php	17.18 KB	-rw-r--r--
class-wp-oembed-controller.php	6.72 KB	-rw-r--r--
class-wp-oembed.php	30.66 KB	-rw-r--r--
class-wp-paused-extensions-sto...	4.97 KB	-rw-r--r--
class-wp-plugin-dependencies.p...	24.78 KB	-rw-r--r--
class-wp-post-type.php	29.28 KB	-rw-r--r--
class-wp-post.php	6.33 KB	-rw-r--r--
class-wp-query.php	148.28 KB	-rw-r--r--
class-wp-recovery-mode-cookie-...	6.72 KB	-rw-r--r--
class-wp-recovery-mode-email-s...	10.92 KB	-rw-r--r--
class-wp-recovery-mode-key-ser...	4.49 KB	-rw-r--r--
class-wp-recovery-mode-link-se...	3.38 KB	-rw-r--r--
class-wp-recovery-mode.php	11.17 KB	-rw-r--r--
class-wp-rewrite.php	61.94 KB	-rw-r--r--
class-wp-role.php	2.46 KB	-rw-r--r--
class-wp-roles.php	8.38 KB	-rw-r--r--
class-wp-script-modules.php	13.16 KB	-rw-r--r--
class-wp-scripts.php	27.25 KB	-rw-r--r--
class-wp-session-tokens.php	7.28 KB	-rw-r--r--
class-wp-simplepie-file.php	3.3 KB	-rw-r--r--
class-wp-simplepie-sanitize-ks...	1.73 KB	-rw-r--r--
class-wp-site-query.php	30.4 KB	-rw-r--r--
class-wp-site.php	7.28 KB	-rw-r--r--
class-wp-styles.php	10.64 KB	-rw-r--r--
class-wp-tax-query.php	19.1 KB	-rw-r--r--
class-wp-taxonomy.php	18.13 KB	-rw-r--r--
class-wp-term-query.php	40.2 KB	-rw-r--r--
class-wp-term.php	5.17 KB	-rw-r--r--
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class-wp-text-diff-renderer-ta...	18.37 KB	-rw-r--r--
class-wp-textdomain-registry.p...	9.64 KB	-rw-r--r--
class-wp-theme-json-data.php	1.52 KB	-rw-r--r--
class-wp-theme-json-resolver.p...	24.6 KB	-rw-r--r--
class-wp-theme-json-schema.php	4.12 KB	-rw-r--r--
class-wp-theme-json.php	132.21 KB	-rw-r--r--
class-wp-theme.php	62.81 KB	-rw-r--r--
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class-wp-user-query.php	42.5 KB	-rw-r--r--
class-wp-user-request.php	2.17 KB	-rw-r--r--
class-wp-user.php	22.29 KB	-rw-r--r--
class-wp-walker.php	12.87 KB	-rw-r--r--
class-wp-widget-factory.php	3.27 KB	-rw-r--r--
class-wp-widget.php	17.96 KB	-rw-r--r--
class-wp-xmlrpc-server.php	209.91 KB	-rw-r--r--
class-wp.php	25.51 KB	-rw-r--r--
class-wpdb.php	116.67 KB	-rw-r--r--
class.wp-dependencies.php	373 B	-rw-r--r--
class.wp-scripts.php	343 B	-rw-r--r--
class.wp-styles.php	338 B	-rw-r--r--
comment-template.php	99.25 KB	-rw-r--r--
comment.php	126.1 KB	-rw-r--r--
compat.php	15.85 KB	-rw-r--r--
cron.php	40.51 KB	-rw-r--r--
date.php	400 B	-rw-r--r--
default-constants.php	10.91 KB	-rw-r--r--
default-filters.php	34.18 KB	-rw-r--r--
default-widgets.php	2.17 KB	-rw-r--r--
deprecated.php	181.5 KB	-rw-r--r--
embed-template.php	338 B	-rw-r--r--
embed.php	36.79 KB	-rw-r--r--
error-protection.php	4.02 KB	-rw-r--r--
error_log	0 B	-rw-r--r--
feed-atom-comments.php	5.38 KB	-rw-r--r--
feed-atom.php	2.98 KB	-rw-r--r--
feed-rdf.php	2.61 KB	-rw-r--r--
feed-rss.php	1.16 KB	-rw-r--r--
feed-rss2-comments.php	4.04 KB	-rw-r--r--
feed-rss2.php	3.71 KB	-rw-r--r--
feed.php	22.52 KB	-rw-r--r--
fonts.php	9.14 KB	-rw-r--r--
formatting.php	327.83 KB	-rw-r--r--
functions.php	271.83 KB	-rw-r--r--
functions.wp-scripts.php	14.22 KB	-rw-r--r--
functions.wp-styles.php	8.38 KB	-rw-r--r--
general-template.php	164 KB	-rw-r--r--
global-styles-and-settings.php	20.76 KB	-rw-r--r--
http.php	23.29 KB	-rw-r--r--
https-detection.php	5.53 KB	-rw-r--r--
https-migration.php	4.63 KB	-rw-r--r--
kses.php	70.26 KB	-rw-r--r--
l10n.php	63.86 KB	-rw-r--r--
link-template.php	152.42 KB	-rw-r--r--
load.php	53.69 KB	-rw-r--r--
locale.php	162 B	-rw-r--r--
media-template.php	60.37 KB	-rw-r--r--
media.php	205.28 KB	-rw-r--r--
meta.php	62.58 KB	-rw-r--r--
ms-blogs.php	25.13 KB	-rw-r--r--
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ms-default-filters.php	6.48 KB	-rw-r--r--
ms-deprecated.php	21.25 KB	-rw-r--r--
ms-files.php	2.65 KB	-rw-r--r--
ms-functions.php	89.1 KB	-rw-r--r--
ms-load.php	19.4 KB	-rw-r--r--
ms-network.php	3.69 KB	-rw-r--r--
ms-settings.php	4.03 KB	-rw-r--r--
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nav-menu-template.php	25.18 KB	-rw-r--r--
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pluggable-deprecated.php	6.12 KB	-rw-r--r--
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plugin.php	34.63 KB	-rw-r--r--
post-formats.php	6.93 KB	-rw-r--r--
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post-thumbnail-template.php	10.07 KB	-rw-r--r--
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query.php	36.17 KB	-rw-r--r--
registration-functions.php	200 B	-rw-r--r--
registration.php	200 B	-rw-r--r--
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revision.php	30.18 KB	-rw-r--r--
rewrite.php	19.06 KB	-rw-r--r--
robots-template.php	5.06 KB	-rw-r--r--
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session.php	258 B	-rw-r--r--
shortcodes.php	23.39 KB	-rw-r--r--
sitemaps.php	3.16 KB	-rw-r--r--
spl-autoload-compat.php	441 B	-rw-r--r--
style-engine.php	7.03 KB	-rw-r--r--
taxonomy.php	170.9 KB	-rw-r--r--
template-canvas.php	544 B	-rw-r--r--
template-loader.php	2.94 KB	-rw-r--r--
template.php	23.59 KB	-rw-r--r--
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user.php	167.56 KB	-rw-r--r--
vars.php	6.24 KB	-rw-r--r--
version.php	960 B	-rw-r--r--
widgets.php	68.95 KB	-rw-r--r--
wp-db.php	445 B	-rw-r--r--
wp-diff.php	647 B	-rw-r--r--

Code Editor : category.php

<?php
/**
 * Taxonomy API: Core category-specific functionality
 *
 * @package WordPress
 * @subpackage Taxonomy
 */

/**
 * Retrieves a list of category objects.
 *
 * If you set the 'taxonomy' argument to 'link_category', the link categories
 * will be returned instead.
 *
 * @since 2.1.0
 *
 * @see get_terms() Type of arguments that can be changed.
 *
 * @param string|array $args {
 *     Optional. Arguments to retrieve categories. See get_terms() for additional options.
 *
 *     @type string $taxonomy Taxonomy to retrieve terms for. Default 'category'.
 * }
 * @return array List of category objects.
 */
function get_categories( $args = '' ) {
	$defaults = array( 'taxonomy' => 'category' );
	$args     = wp_parse_args( $args, $defaults );

/**
	 * Filters the taxonomy used to retrieve terms when calling get_categories().
	 *
	 * @since 2.7.0
	 *
	 * @param string $taxonomy Taxonomy to retrieve terms from.
	 * @param array  $args     An array of arguments. See get_terms().
	 */
	$args['taxonomy'] = apply_filters( 'get_categories_taxonomy', $args['taxonomy'], $args );

// Back compat.
	if ( isset( $args['type'] ) && 'link' === $args['type'] ) {
		_deprecated_argument(
			__FUNCTION__,
			'3.0.0',
			sprintf(
				/* translators: 1: "type => link", 2: "taxonomy => link_category" */
				__( '%1$s is deprecated. Use %2$s instead.' ),
				'<code>type => link</code>',
				'<code>taxonomy => link_category</code>'
			)
		);
		$args['taxonomy'] = 'link_category';
	}

$categories = get_terms( $args );

if ( is_wp_error( $categories ) ) {
		$categories = array();
	} else {
		$categories = (array) $categories;
		foreach ( array_keys( $categories ) as $k ) {
			_make_cat_compat( $categories[ $k ] );
		}
	}

return $categories;
}

/**
 * Retrieves category data given a category ID or category object.
 *
 * If you pass the $category parameter an object, which is assumed to be the
 * category row object retrieved the database. It will cache the category data.
 *
 * If you pass $category an integer of the category ID, then that category will
 * be retrieved from the database, if it isn't already cached, and pass it back.
 *
 * If you look at get_term(), then both types will be passed through several
 * filters and finally sanitized based on the $filter parameter value.
 *
 * @since 1.5.1
 *
 * @param int|object $category Category ID or category row object.
 * @param string     $output   Optional. The required return type. One of OBJECT, ARRAY_A, or ARRAY_N, which
 *                             correspond to a WP_Term object, an associative array, or a numeric array,
 *                             respectively. Default OBJECT.
 * @param string     $filter   Optional. How to sanitize category fields. Default 'raw'.
 * @return object|array|WP_Error|null Category data in type defined by $output parameter.
 *                                    WP_Error if $category is empty, null if it does not exist.
 */
function get_category( $category, $output = OBJECT, $filter = 'raw' ) {
	$category = get_term( $category, 'category', $output, $filter );

if ( is_wp_error( $category ) ) {
		return $category;
	}

_make_cat_compat( $category );

return $category;
}

/**
 * Retrieves a category based on URL containing the category slug.
 *
 * Breaks the $category_path parameter up to get the category slug.
 *
 * Tries to find the child path and will return it. If it doesn't find a
 * match, then it will return the first category matching slug, if $full_match,
 * is set to false. If it does not, then it will return null.
 *
 * It is also possible that it will return a WP_Error object on failure. Check
 * for it when using this function.
 *
 * @since 2.1.0
 *
 * @param string $category_path URL containing category slugs.
 * @param bool   $full_match    Optional. Whether full path should be matched.
 * @param string $output        Optional. The required return type. One of OBJECT, ARRAY_A, or ARRAY_N, which
 *                              correspond to a WP_Term object, an associative array, or a numeric array,
 *                              respectively. Default OBJECT.
 * @return WP_Term|array|WP_Error|null Type is based on $output value.
 */
function get_category_by_path( $category_path, $full_match = true, $output = OBJECT ) {
	$category_path  = rawurlencode( urldecode( $category_path ) );
	$category_path  = str_replace( '%2F', '/', $category_path );
	$category_path  = str_replace( '%20', ' ', $category_path );
	$category_paths = '/' . trim( $category_path, '/' );
	$leaf_path      = sanitize_title( basename( $category_paths ) );
	$category_paths = explode( '/', $category_paths );
	$full_path      = '';

foreach ( (array) $category_paths as $pathdir ) {
		$full_path .= ( '' !== $pathdir ? '/' : '' ) . sanitize_title( $pathdir );
	}

$categories = get_terms(
		array(
			'taxonomy' => 'category',
			'get'      => 'all',
			'slug'     => $leaf_path,
		)
	);

if ( empty( $categories ) ) {
		return;
	}

foreach ( $categories as $category ) {
		$path        = '/' . $leaf_path;
		$curcategory = $category;

while ( ( 0 !== $curcategory->parent ) && ( $curcategory->parent !== $curcategory->term_id ) ) {
			$curcategory = get_term( $curcategory->parent, 'category' );

if ( is_wp_error( $curcategory ) ) {
				return $curcategory;
			}

$path = '/' . $curcategory->slug . $path;
		}

if ( $path === $full_path ) {
			$category = get_term( $category->term_id, 'category', $output );
			_make_cat_compat( $category );

return $category;
		}
	}

// If full matching is not required, return the first cat that matches the leaf.
	if ( ! $full_match ) {
		$category = get_term( reset( $categories )->term_id, 'category', $output );
		_make_cat_compat( $category );

return $category;
	}
}

/**
 * Retrieves a category object by category slug.
 *
 * @since 2.3.0
 *
 * @param string $slug The category slug.
 * @return object|false Category data object on success, false if not found.
 */
function get_category_by_slug( $slug ) {
	$category = get_term_by( 'slug', $slug, 'category' );

if ( $category ) {
		_make_cat_compat( $category );
	}

return $category;
}

/**
 * Retrieves the ID of a category from its name.
 *
 * @since 1.0.0
 *
 * @param string $cat_name Category name.
 * @return int Category ID on success, 0 if the category doesn't exist.
 */
function get_cat_ID( $cat_name ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionNameInvalid
	$cat = get_term_by( 'name', $cat_name, 'category' );

if ( $cat ) {
		return $cat->term_id;
	}

return 0;
}

/**
 * Retrieves the name of a category from its ID.
 *
 * @since 1.0.0
 *
 * @param int $cat_id Category ID.
 * @return string Category name, or an empty string if the category doesn't exist.
 */
function get_cat_name( $cat_id ) {
	$cat_id   = (int) $cat_id;
	$category = get_term( $cat_id, 'category' );

if ( ! $category || is_wp_error( $category ) ) {
		return '';
	}

return $category->name;
}

/**
 * Checks if a category is an ancestor of another category.
 *
 * You can use either an ID or the category object for both parameters.
 * If you use an integer, the category will be retrieved.
 *
 * @since 2.1.0
 *
 * @param int|object $cat1 ID or object to check if this is the parent category.
 * @param int|object $cat2 The child category.
 * @return bool Whether $cat2 is child of $cat1.
 */
function cat_is_ancestor_of( $cat1, $cat2 ) {
	return term_is_ancestor_of( $cat1, $cat2, 'category' );
}

/**
 * Sanitizes category data based on context.
 *
 * @since 2.3.0
 *
 * @param object|array $category Category data.
 * @param string       $context  Optional. Default 'display'.
 * @return object|array Same type as $category with sanitized data for safe use.
 */
function sanitize_category( $category, $context = 'display' ) {
	return sanitize_term( $category, 'category', $context );
}

/**
 * Sanitizes data in single category key field.
 *
 * @since 2.3.0
 *
 * @param string $field   Category key to sanitize.
 * @param mixed  $value   Category value to sanitize.
 * @param int    $cat_id  Category ID.
 * @param string $context What filter to use, 'raw', 'display', etc.
 * @return mixed Value after $value has been sanitized.
 */
function sanitize_category_field( $field, $value, $cat_id, $context ) {
	return sanitize_term_field( $field, $value, $cat_id, 'category', $context );
}

/* Tags */

/**
 * Retrieves all post tags.
 *
 * @since 2.3.0
 *
 * @param string|array $args {
 *     Optional. Arguments to retrieve tags. See get_terms() for additional options.
 *
 *     @type string $taxonomy Taxonomy to retrieve terms for. Default 'post_tag'.
 * }
 * @return WP_Term[]|int|WP_Error Array of 'post_tag' term objects, a count thereof,
 *                                or WP_Error if any of the taxonomies do not exist.
 */
function get_tags( $args = '' ) {
	$defaults = array( 'taxonomy' => 'post_tag' );
	$args     = wp_parse_args( $args, $defaults );

$tags = get_terms( $args );

if ( empty( $tags ) ) {
		$tags = array();
	} else {
		/**
		 * Filters the array of term objects returned for the 'post_tag' taxonomy.
		 *
		 * @since 2.3.0
		 *
		 * @param WP_Term[]|int|WP_Error $tags Array of 'post_tag' term objects, a count thereof,
		 *                                     or WP_Error if any of the taxonomies do not exist.
		 * @param array                  $args An array of arguments. See {@see get_terms()}.
		 */
		$tags = apply_filters( 'get_tags', $tags, $args );
	}

return $tags;
}

/**
 * Retrieves a post tag by tag ID or tag object.
 *
 * If you pass the $tag parameter an object, which is assumed to be the tag row
 * object retrieved from the database, it will cache the tag data.
 *
 * If you pass $tag an integer of the tag ID, then that tag will be retrieved
 * from the database, if it isn't already cached, and passed back.
 *
 * If you look at get_term(), both types will be passed through several filters
 * and finally sanitized based on the $filter parameter value.
 *
 * @since 2.3.0
 *
 * @param int|WP_Term|object $tag    A tag ID or object.
 * @param string             $output Optional. The required return type. One of OBJECT, ARRAY_A, or ARRAY_N, which
 *                                   correspond to a WP_Term object, an associative array, or a numeric array,
 *                                   respectively. Default OBJECT.
 * @param string             $filter Optional. How to sanitize tag fields. Default 'raw'.
 * @return WP_Term|array|WP_Error|null Tag data in type defined by $output parameter.
 *                                     WP_Error if $tag is empty, null if it does not exist.
 */
function get_tag( $tag, $output = OBJECT, $filter = 'raw' ) {
	return get_term( $tag, 'post_tag', $output, $filter );
}

/* Cache */

/**
 * Removes the category cache data based on ID.
 *
 * @since 2.1.0
 *
 * @param int $id Category ID
 */
function clean_category_cache( $id ) {
	clean_term_cache( $id, 'category' );
}

/**
 * Updates category structure to old pre-2.3 from new taxonomy structure.
 *
 * This function was added for the taxonomy support to update the new category
 * structure with the old category one. This will maintain compatibility with
 * plugins and themes which depend on the old key or property names.
 *
 * The parameter should only be passed a variable and not create the array or
 * object inline to the parameter. The reason for this is that parameter is
 * passed by reference and PHP will fail unless it has the variable.
 *
 * There is no return value, because everything is updated on the variable you
 * pass to it. This is one of the features with using pass by reference in PHP.
 *
 * @since 2.3.0
 * @since 4.4.0 The `$category` parameter now also accepts a WP_Term object.
 * @access private
 *
 * @param array|object|WP_Term $category Category row object or array.
 */
function _make_cat_compat( &$category ) {
	if ( is_object( $category ) && ! is_wp_error( $category ) ) {
		$category->cat_ID               = $category->term_id;
		$category->category_count       = $category->count;
		$category->category_description = $category->description;
		$category->cat_name             = $category->name;
		$category->category_nicename    = $category->slug;
		$category->category_parent      = $category->parent;
	} elseif ( is_array( $category ) && isset( $category['term_id'] ) ) {
		$category['cat_ID']               = &$category['term_id'];
		$category['category_count']       = &$category['count'];
		$category['category_description'] = &$category['description'];
		$category['cat_name']             = &$category['name'];
		$category['category_nicename']    = &$category['slug'];
		$category['category_parent']      = &$category['parent'];
	}
}

${this.title}

Code Editor : category.php