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📁 abilities-api	Folder	-
📄 abilities-api.php	File	24369	Edit Download
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📄 atomlib.php	File	12181	Edit Download
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📄 block-bindings.php	File	7526	Edit Download
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📄 block-patterns.php	File	13213	Edit Download
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📄 block-template-utils.php	File	62484	Edit Download
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📄 blocks.php	File	114739	Edit Download
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📄 class-IXR.php	File	2616	Edit Download
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📄 class-wp-ajax-response.php	File	5266	Edit Download
📄 class-wp-application-passwords.php	File	17099	Edit Download
📄 class-wp-block-bindings-registry.php	File	8482	Edit Download
📄 class-wp-block-bindings-source.php	File	2992	Edit Download
📄 class-wp-block-editor-context.php	File	1350	Edit Download
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📄 class-wp-block-metadata-registry.php	File	11895	Edit Download
📄 class-wp-block-parser-block.php	File	2555	Edit Download
📄 class-wp-block-parser-frame.php	File	2017	Edit Download
📄 class-wp-block-parser.php	File	11516	Edit Download
📄 class-wp-block-pattern-categories-registry.php	File	5450	Edit Download
📄 class-wp-block-patterns-registry.php	File	10851	Edit Download
📄 class-wp-block-processor.php	File	69469	Edit Download
📄 class-wp-block-styles-registry.php	File	6497	Edit Download
📄 class-wp-block-supports.php	File	5626	Edit Download
📄 class-wp-block-template.php	File	2033	Edit Download
📄 class-wp-block-templates-registry.php	File	7193	Edit Download
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📄 class-wp-classic-to-block-menu-converter.php	File	4070	Edit Download
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📄 class-wp-duotone.php	File	40783	Edit Download
📄 class-wp-editor.php	File	72335	Edit Download
📄 class-wp-embed.php	File	15931	Edit Download
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📄 class-wp-http-encoding.php	File	6689	Edit Download
📄 class-wp-http-ixr-client.php	File	3501	Edit Download
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📄 class-wp-http-requests-hooks.php	File	2022	Edit Download
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📄 class-wp-http.php	File	41570	Edit Download
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📄 class-wp-list-util.php	File	7443	Edit Download
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📄 class-wp-locale.php	File	16883	Edit Download
📄 class-wp-matchesmapregex.php	File	1828	Edit Download
📄 class-wp-meta-query.php	File	30533	Edit Download
📄 class-wp-metadata-lazyloader.php	File	6833	Edit Download
📄 class-wp-navigation-fallback.php	File	9193	Edit Download
📄 class-wp-network-query.php	File	19887	Edit Download
📄 class-wp-network.php	File	12296	Edit Download
📄 class-wp-object-cache.php	File	17524	Edit Download
📄 class-wp-oembed-controller.php	File	6905	Edit Download
📄 class-wp-oembed.php	File	31670	Edit Download
📄 class-wp-paused-extensions-storage.php	File	5111	Edit Download
📄 class-wp-phpmailer.php	File	4348	Edit Download
📄 class-wp-plugin-dependencies.php	File	25315	Edit Download
📄 class-wp-post-type.php	File	30680	Edit Download
📄 class-wp-post.php	File	6491	Edit Download
📄 class-wp-query.php	File	163744	Edit Download
📄 class-wp-recovery-mode-cookie-service.php	File	6877	Edit Download
📄 class-wp-recovery-mode-email-service.php	File	11183	Edit Download
📄 class-wp-recovery-mode-key-service.php	File	4884	Edit Download
📄 class-wp-recovery-mode-link-service.php	File	3463	Edit Download
📄 class-wp-recovery-mode.php	File	11453	Edit Download
📄 class-wp-rewrite.php	File	63687	Edit Download
📄 class-wp-role.php	File	2523	Edit Download
📄 class-wp-roles.php	File	9394	Edit Download
📄 class-wp-script-modules.php	File	31882	Edit Download
📄 class-wp-scripts.php	File	34177	Edit Download
📄 class-wp-session-tokens.php	File	7319	Edit Download
📄 class-wp-simplepie-file.php	File	3552	Edit Download
📄 class-wp-simplepie-sanitize-kses.php	File	1910	Edit Download
📄 class-wp-site-query.php	File	31655	Edit Download
📄 class-wp-site.php	File	7467	Edit Download
📄 class-wp-speculation-rules.php	File	7527	Edit Download
📄 class-wp-styles.php	File	12144	Edit Download
📄 class-wp-tax-query.php	File	19577	Edit Download
📄 class-wp-taxonomy.php	File	18559	Edit Download
📄 class-wp-term-query.php	File	40953	Edit Download
📄 class-wp-term.php	File	5298	Edit Download
📄 class-wp-text-diff-renderer-inline.php	File	979	Edit Download
📄 class-wp-text-diff-renderer-table.php	File	18880	Edit Download
📄 class-wp-textdomain-registry.php	File	10481	Edit Download
📄 class-wp-theme-json-data.php	File	1809	Edit Download
📄 class-wp-theme-json-resolver.php	File	35738	Edit Download
📄 class-wp-theme-json-schema.php	File	7367	Edit Download
📄 class-wp-theme-json.php	File	164347	Edit Download
📄 class-wp-theme.php	File	65810	Edit Download
📄 class-wp-token-map.php	File	28618	Edit Download
📄 class-wp-url-pattern-prefixer.php	File	4802	Edit Download
📄 class-wp-user-meta-session-tokens.php	File	3011	Edit Download
📄 class-wp-user-query.php	File	44166	Edit Download
📄 class-wp-user-request.php	File	2305	Edit Download
📄 class-wp-user.php	File	23044	Edit Download
📄 class-wp-walker.php	File	13322	Edit Download
📄 class-wp-widget-factory.php	File	3347	Edit Download
📄 class-wp-widget.php	File	18429	Edit Download
📄 class-wp-xmlrpc-server.php	File	215447	Edit Download
📄 class-wp.php	File	26481	Edit Download
📄 class-wpdb.php	File	118627	Edit Download
📄 class.wp-dependencies.php	File	373	Edit Download
📄 class.wp-scripts.php	File	343	Edit Download
📄 class.wp-styles.php	File	338	Edit Download
📄 comment-template.php	File	103145	Edit Download
📄 comment.php	File	134069	Edit Download
📄 compat-utf8.php	File	19554	Edit Download
📄 compat.php	File	17830	Edit Download
📄 cron.php	File	42988	Edit Download
📁 css	Folder	-
📁 customize	Folder	-
📄 date.php	File	400	Edit Download
📄 default-constants.php	File	11365	Edit Download
📄 default-filters.php	File	37910	Edit Download
📄 default-widgets.php	File	2295	Edit Download
📄 deprecated.php	File	192644	Edit Download
📄 embed-template.php	File	338	Edit Download
📄 embed.php	File	38911	Edit Download
📄 error-protection.php	File	4121	Edit Download
📄 feed-atom-comments.php	File	5504	Edit Download
📄 feed-atom.php	File	3121	Edit Download
📄 feed-rdf.php	File	2668	Edit Download
📄 feed-rss.php	File	1189	Edit Download
📄 feed-rss2-comments.php	File	4136	Edit Download
📄 feed-rss2.php	File	3799	Edit Download
📄 feed.php	File	23579	Edit Download
📁 fonts	Folder	-
📄 fonts.php	File	9790	Edit Download
📄 formatting.php	File	354741	Edit Download
📄 functions.php	File	288600	Edit Download
📄 functions.wp-scripts.php	File	15311	Edit Download
📄 functions.wp-styles.php	File	8641	Edit Download
📄 general-template.php	File	173004	Edit Download
📄 global-styles-and-settings.php	File	21204	Edit Download
📁 html-api	Folder	-
📄 http.php	File	25878	Edit Download
📄 https-detection.php	File	5857	Edit Download
📄 https-migration.php	File	4741	Edit Download
📁 images	Folder	-
📁 interactivity-api	Folder	-
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📄 kses.php	File	83677	Edit Download
📁 l10n	Folder	-
📄 l10n.php	File	68797	Edit Download
📄 link-template.php	File	160117	Edit Download
📄 load.php	File	56510	Edit Download
📄 locale.php	File	162	Edit Download
📄 media-template.php	File	63197	Edit Download
📄 media.php	File	221186	Edit Download
📄 meta.php	File	66556	Edit Download
📄 ms-blogs.php	File	25845	Edit Download
📄 ms-default-constants.php	File	4921	Edit Download
📄 ms-default-filters.php	File	6636	Edit Download
📄 ms-deprecated.php	File	21759	Edit Download
📄 ms-files.php	File	2857	Edit Download
📄 ms-functions.php	File	91842	Edit Download
📄 ms-load.php	File	19887	Edit Download
📄 ms-network.php	File	3782	Edit Download
📄 ms-settings.php	File	4204	Edit Download
📄 ms-site.php	File	41717	Edit Download
📄 nav-menu-template.php	File	25990	Edit Download
📄 nav-menu.php	File	44373	Edit Download
📄 option.php	File	105035	Edit Download
📁 php-compat	Folder	-
📄 pluggable-deprecated.php	File	6324	Edit Download
📄 pluggable.php	File	127440	Edit Download
📄 plugin.php	File	36501	Edit Download
📁 pomo	Folder	-
📄 post-formats.php	File	7102	Edit Download
📄 post-template.php	File	68648	Edit Download
📄 post-thumbnail-template.php	File	10879	Edit Download
📄 post.php	File	296072	Edit Download
📄 query.php	File	37095	Edit Download
📄 registration-functions.php	File	200	Edit Download
📄 registration.php	File	200	Edit Download
📁 rest-api	Folder	-
📄 rest-api.php	File	100654	Edit Download
📄 revision.php	File	30741	Edit Download
📄 rewrite.php	File	19490	Edit Download
📄 robots-template.php	File	5185	Edit Download
📄 rss-functions.php	File	255	Edit Download
📄 rss.php	File	23203	Edit Download
📄 script-loader.php	File	153993	Edit Download
📄 script-modules.php	File	9911	Edit Download
📄 session.php	File	258	Edit Download
📄 shortcodes.php	File	24050	Edit Download
📁 sitemaps	Folder	-
📄 sitemaps.php	File	3238	Edit Download
📁 sodium_compat	Folder	-
📄 speculative-loading.php	File	8600	Edit Download
📄 spl-autoload-compat.php	File	441	Edit Download
📁 style-engine	Folder	-
📄 style-engine.php	File	7563	Edit Download
📄 taxonomy.php	File	177058	Edit Download
📄 template-canvas.php	File	544	Edit Download
📄 template-loader.php	File	3929	Edit Download
📄 template.php	File	36834	Edit Download
📁 theme-compat	Folder	-
📄 theme-i18n.json	File	1526	Edit Download
📄 theme-previews.php	File	2910	Edit Download
📄 theme-templates.php	File	6238	Edit Download
📄 theme.json	File	8921	Edit Download
📄 theme.php	File	135008	Edit Download
📄 update.php	File	38353	Edit Download
📄 user.php	File	178062	Edit Download
📄 utf8.php	File	7260	Edit Download
📄 vars.php	File	6562	Edit Download
📄 version.php	File	1104	Edit Download
📁 widgets	Folder	-
📄 widgets.php	File	71129	Edit Download
📄 wp-db.php	File	445	Edit Download
📄 wp-diff.php	File	799	Edit Download

📝 Editing: utf8.php Size: 7,260 bytes Lines: 178 Type: .php

<?php

if ( extension_loaded( 'mbstring' ) ) :
	/**
	 * Determines if a given byte string represents a valid UTF-8 encoding.
	 *
	 * Note that it’s unlikely for non-UTF-8 data to validate as UTF-8, but
	 * it is still possible. Many texts are simultaneously valid UTF-8,
	 * valid US-ASCII, and valid ISO-8859-1 (`latin1`).
	 *
	 * Example:
	 *
	 *     true === wp_is_valid_utf8( '' );
	 *     true === wp_is_valid_utf8( 'just a test' );
	 *     true === wp_is_valid_utf8( "\xE2\x9C\x8F" );    // Pencil, U+270F.
	 *     true === wp_is_valid_utf8( "\u{270F}" );        // Pencil, U+270F.
	 *     true === wp_is_valid_utf8( '✏' );              // Pencil, U+270F.
	 *
	 *     false === wp_is_valid_utf8( "just \xC0 test" ); // Invalid bytes.
	 *     false === wp_is_valid_utf8( "\xE2\x9C" );       // Invalid/incomplete sequences.
	 *     false === wp_is_valid_utf8( "\xC1\xBF" );       // Overlong sequences.
	 *     false === wp_is_valid_utf8( "\xED\xB0\x80" );   // Surrogate halves.
	 *     false === wp_is_valid_utf8( "B\xFCch" );        // ISO-8859-1 high-bytes.
	 *                                                     // E.g. The “ü” in ISO-8859-1 is a single byte 0xFC,
	 *                                                     // but in UTF-8 is the two-byte sequence 0xC3 0xBC.
	 *
	 *  A “valid” string consists of “well-formed UTF-8 code unit sequence[s],” meaning
	 *  that the bytes conform to the UTF-8 encoding scheme, all characters use the minimal
	 *  byte sequence required by UTF-8, and that no sequence encodes a UTF-16 surrogate
	 *  code point or any character above the representable range.
	 *
	 * @see https://www.unicode.org/versions/Unicode16.0.0/core-spec/chapter-3/#G32860
	 *
	 * @since 6.9.0
	 *
	 * @param string $bytes String which might contain text encoded as UTF-8.
	 * @return bool Whether the provided bytes can decode as valid UTF-8.
	 */
	function wp_is_valid_utf8( string $bytes ): bool {
		return mb_check_encoding( $bytes, 'UTF-8' );
	}
else :
	/**
	 * Fallback function for validating UTF-8.
	 *
	 * @ignore
	 * @private
	 *
	 * @since 6.9.0
	 */
	function wp_is_valid_utf8( string $string ): bool {
		return _wp_is_valid_utf8_fallback( $string );
	}
endif;

if (
	extension_loaded( 'mbstring' ) &&
	// Maximal subpart substitution introduced by php/php-src@04e59c916f12b322ac55f22314e31bd0176d01cb.
	version_compare( PHP_VERSION, '8.1.6', '>=' )
) :
	/**
	 * Replaces ill-formed UTF-8 byte sequences with the Unicode Replacement Character.
	 *
	 * Knowing what to do in the presence of text encoding issues can be complicated.
	 * This function replaces invalid spans of bytes to neutralize any corruption that
	 * may be there and prevent it from causing further problems downstream.
	 *
	 * However, it’s not always ideal to replace those bytes. In some settings it may
	 * be best to leave the invalid bytes in the string so that downstream code can handle
	 * them in a specific way. Replacing the bytes too early, like escaping for HTML too
	 * early, can introduce other forms of corruption and data loss.
	 *
	 * When in doubt, use this function to replace spans of invalid bytes.
	 *
	 * Replacement follows the “maximal subpart” algorithm for secure and interoperable
	 * strings. This can lead to sequences of multiple replacement characters in a row.
	 *
	 * Example:
	 *
	 *     // Valid strings come through unchanged.
	 *     'test' === wp_scrub_utf8( 'test' );
	 *
	 *     // Invalid sequences of bytes are replaced.
	 *     $invalid = "the byte \xC0 is never allowed in a UTF-8 string.";
	 *     "the byte \u{FFFD} is never allowed in a UTF-8 string." === wp_scrub_utf8( $invalid, true );
	 *     'the byte � is never allowed in a UTF-8 string.' === wp_scrub_utf8( $invalid, true );
	 *
	 *     // Maximal subparts are replaced individually.
	 *     '.�.' === wp_scrub_utf8( ".\xC0." );              // C0 is never valid.
	 *     '.�.' === wp_scrub_utf8( ".\xE2\x8C." );          // Missing A3 at end.
	 *     '.��.' === wp_scrub_utf8( ".\xE2\x8C\xE2\x8C." ); // Maximal subparts replaced separately.
	 *     '.��.' === wp_scrub_utf8( ".\xC1\xBF." );         // Overlong sequence.
	 *     '.���.' === wp_scrub_utf8( ".\xED\xA0\x80." );    // Surrogate half.
	 *
	 * Note! The Unicode Replacement Character is itself a Unicode character (U+FFFD).
	 * Once a span of invalid bytes has been replaced by one, it will not be possible
	 * to know whether the replacement character was originally intended to be there
	 * or if it is the result of scrubbing bytes. It is ideal to leave replacement for
	 * display only, but some contexts (e.g. generating XML or passing data into a
	 * large language model) require valid input strings.
	 *
	 * @since 6.9.0
	 *
	 * @see https://www.unicode.org/versions/Unicode16.0.0/core-spec/chapter-5/#G40630
	 *
	 * @param string $text String which is assumed to be UTF-8 but may contain invalid sequences of bytes.
	 * @return string Input text with invalid sequences of bytes replaced with the Unicode replacement character.
	 */
	function wp_scrub_utf8( $text ) {
		/*
		 * While it looks like setting the substitute character could fail,
		 * the internal PHP code will never fail when provided a valid
		 * code point as a number. In this case, there’s no need to check
		 * its return value to see if it succeeded.
		 */
		$prev_replacement_character = mb_substitute_character();
		mb_substitute_character( 0xFFFD );
		$scrubbed = mb_scrub( $text, 'UTF-8' );
		mb_substitute_character( $prev_replacement_character );

return $scrubbed;
	}
else :
	/**
	 * Fallback function for scrubbing UTF-8.
	 *
	 * @ignore
	 * @private
	 *
	 * @since 6.9.0
	 */
	function wp_scrub_utf8( $text ) {
		return _wp_scrub_utf8_fallback( $text );
	}
endif;

if ( _wp_can_use_pcre_u() ) :
	/**
	 * Returns whether the given string contains Unicode noncharacters.
	 *
	 * XML recommends against using noncharacters and HTML forbids their
	 * use in attribute names. Unicode recommends that they not be used
	 * in open exchange of data.
	 *
	 * Noncharacters are code points within the following ranges:
	 *  - U+FDD0–U+FDEF
	 *  - U+FFFE–U+FFFF
	 *  - U+1FFFE, U+1FFFF, U+2FFFE, U+2FFFF, …, U+10FFFE, U+10FFFF
	 *
	 * @see https://www.unicode.org/versions/Unicode17.0.0/core-spec/chapter-23/#G12612
	 * @see https://www.w3.org/TR/xml/#charsets
	 * @see https://html.spec.whatwg.org/#attributes-2
	 *
	 * @since 6.9.0
	 *
	 * @param string $text Are there noncharacters in this string?
	 * @return bool Whether noncharacters were found in the string.
	 */
	function wp_has_noncharacters( string $text ): bool {
		return 1 === preg_match(
			'/[\x{FDD0}-\x{FDEF}\x{FFFE}\x{FFFF}\x{1FFFE}\x{1FFFF}\x{2FFFE}\x{2FFFF}\x{3FFFE}\x{3FFFF}\x{4FFFE}\x{4FFFF}\x{5FFFE}\x{5FFFF}\x{6FFFE}\x{6FFFF}\x{7FFFE}\x{7FFFF}\x{8FFFE}\x{8FFFF}\x{9FFFE}\x{9FFFF}\x{AFFFE}\x{AFFFF}\x{BFFFE}\x{BFFFF}\x{CFFFE}\x{CFFFF}\x{DFFFE}\x{DFFFF}\x{EFFFE}\x{EFFFF}\x{FFFFE}\x{FFFFF}\x{10FFFE}\x{10FFFF}]/u',
			$text
		);
	}
else :
	/**
	 * Fallback function for detecting noncharacters in a text.
	 *
	 * @ignore
	 * @private
	 *
	 * @since 6.9.0
	 */
	function wp_has_noncharacters( string $text ): bool {
		return _wp_has_noncharacters_fallback( $text );
	}
endif;

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