0x2039, // 0x8B -> SINGLE LEFT-POINTING ANGLE QUOTATION MARK (‹).
					0x0152, // 0x8C -> LATIN CAPITAL LIGATURE OE (Œ).
					0x8D,   // 0x8D -> (no change).
					0x017D, // 0x8E -> LATIN CAPITAL LETTER Z WITH CARON (Ž).
					0x8F,   // 0x8F -> (no change).
					0x90,   // 0x90 -> (no change).
					0x2018, // 0x91 -> LEFT SINGLE QUOTATION MARK (‘).
					0x2019, // 0x92 -> RIGHT SINGLE QUOTATION MARK (’).
					0x201C, // 0x93 -> LEFT DOUBLE QUOTATION MARK (“).
					0x201D, // 0x94 -> RIGHT DOUBLE QUOTATION MARK (”).
					0x2022, // 0x95 -> BULLET (•).
					0x2013, // 0x96 -> EN DASH (–).
					0x2014, // 0x97 -> EM DASH (—).
					0x02DC, // 0x98 -> SMALL TILDE (˜).
					0x2122, // 0x99 -> TRADE MARK SIGN (™).
					0x0161, // 0x9A -> LATIN SMALL LETTER S WITH CARON (š).
					0x203A, // 0x9B -> SINGLE RIGHT-POINTING ANGLE QUOTATION MARK (›).
					0x0153, // 0x9C -> LATIN SMALL LIGATURE OE (œ).
					0x9D,   // 0x9D -> (no change).
					0x017E, // 0x9E -> LATIN SMALL LETTER Z WITH CARON (ž).
					0x0178, // 0x9F -> LATIN CAPITAL LETTER Y WITH DIAERESIS (Ÿ).
				);

				$code_point = $windows_1252_mapping[ $code_point - 0x80 ];
			}

			$match_byte_length = $end_of_span - $at;
			return self::code_point_to_utf8_bytes( $code_point );
		}

		/** Tracks inner parsing within the named character reference. */
		$name_at = $at + 1;
		// Minimum named character reference is two characters. E.g. `GT`.
		if ( $name_at + 2 > $length ) {
			return null;
		}

		$name_length = 0;
		$replacement = $html5_named_character_references->read_token( $text, $name_at, $name_length );
		if ( false === $replacement ) {
			return null;
		}

		$after_name = $name_at + $name_length;

		// If the match ended with a semicolon then it should always be decoded.
		if ( ';' === $text[ $name_at + $name_length - 1 ] ) {
			$match_byte_length = $after_name - $at;
			return $replacement;
		}

		/*
		 * At this point though there's a match for an entry in the named
		 * character reference table but the match doesn't end in `;`.
		 * It may be allowed if it's followed by something unambiguous.
		 */
		$ambiguous_follower = (
			$after_name < $length &&
			$name_at < $length &&
			(
				ctype_alnum( $text[ $after_name ] ) ||
				'=' === $text[ $after_name ]
			)
		);

		// It's non-ambiguous, safe to leave it in.
		if ( ! $ambiguous_follower ) {
			$match_byte_length = $after_name - $at;
			return $replacement;
		}

		// It's ambiguous, which isn't allowed inside attributes.
		if ( 'attribute' === $context ) {
			return null;
		}

		$match_byte_length = $after_name - $at;
		return $replacement;
	}

	/**
	 * Encode a code point number into the UTF-8 encoding.
	 *
	 * This encoder implements the UTF-8 encoding algorithm for converting
	 * a code point into a byte sequence. If it receives an invalid code
	 * point it will return the Unicode Replacement Character U+FFFD `�`.
	 *
	 * Example:
	 *
	 *     '🅰' === WP_HTML_Decoder::code_point_to_utf8_bytes( 0x1f170 );
	 *
	 *     // Half of a surrogate pair is an invalid code point.
	 *     '�' === WP_HTML_Decoder::code_point_to_utf8_bytes( 0xd83c );
	 *
	 * @since 6.6.0
	 *
	 * @see https://www.rfc-editor.org/rfc/rfc3629 For the UTF-8 standard.
	 *
	 * @param int $code_point Which code point to convert.
	 * @return string Converted code point, or `�` if invalid.
	 */
	public static function code_point_to_utf8_bytes( $code_point ): string {
		// Pre-check to ensure a valid code point.
		if (
			$code_point <= 0 ||
			( $code_point >= 0xD800 && $code_point <= 0xDFFF ) ||
			$code_point > 0x10FFFF
		) {
			return '�';
		}

		if ( $code_point <= 0x7F ) {
			return chr( $code_point );
		}

		if ( $code_point <= 0x7FF ) {
			$byte1 = chr( ( $code_point >> 6 ) | 0xC0 );
			$byte2 = chr( $code_point & 0x3F | 0x80 );

			return "{$byte1}{$byte2}";
		}

		if ( $code_point <= 0xFFFF ) {
			$byte1 = chr( ( $code_point >> 12 ) | 0xE0 );
			$byte2 = chr( ( $code_point >> 6 ) & 0x3F | 0x80 );
			$byte3 = chr( $code_point & 0x3F | 0x80 );

			return "{$byte1}{$byte2}{$byte3}";
		}

		// Any values above U+10FFFF are eliminated above in the pre-check.
		$byte1 = chr( ( $code_point >> 18 ) | 0xF0 );
		$byte2 = chr( ( $code_point >> 12 ) & 0x3F | 0x80 );
		$byte3 = chr( ( $code_point >> 6 ) & 0x3F | 0x80 );
		$byte4 = chr( $code_point & 0x3F | 0x80 );

		return "{$byte1}{$byte2}{$byte3}{$byte4}";
	}
}
<br />
<b>Fatal error</b>:  require_once(): Failed opening required '/home/ocb/public_html/wp-content/plugins/contact-form-7/includes/formatting.php' (include_path='.:/opt/alt/php74/usr/share/pear') in <b>/home/ocb/public_html/wp-content/plugins/contact-form-7/load.php</b> on line <b>6</b><br />