Fix combined RTL and LTR Words in HTML,PHP

is_rtl.html

<bdi>This is Egypt</bdi>

<bdi>هي Egypt</bdi>

<bdi>هي مصر</bdi>

is_rtl.php

<?php
function is_rtl ($char) {
    $uni_RE_PATTERN_ARABIC = "/(
		  \xD8[\x80-\x83\x8B\x8D\x9B\x9E\x9F\xA1-\xBA]  # AL
		| \xD9[\x80-\x8A\xAD-\xAF\xB1-\xBF]             # AL
		| \xDA[\x80-\xBF]                               # AL
		| \xDB[\x80-\x95\x9D\xA5\xA6\xAE\xAF\xBA-\xBF]  # AL
		| \xDC[\x80-\x8D\x90\x92-\xAF]                  # AL
		| \xDD[\x8D-\xAD]                               # AL
		| \xDE[\x80-\xA5\xB1]                           # AL
		| \xEF\xAD[\x90-\xBF]                           # AL
		| \xEF\xAE[\x80-\xB1]                           # AL
		| \xEF\xAF[\x93-\xBF]                           # AL
		| \xEF[\xB0-\xB3][\x80-\xBF]                    # AL
		| \xEF\xB4[\x80-\xBD]                           # AL
		| \xEF\xB5[\x90-\xBF]                           # AL
		| \xEF\xB6[\x80-\x8F\x92-\xBF]                  # AL
		| \xEF\xB7[\x80-\x87\xB0-\xBC]                  # AL
		| \xEF\xB9[\xB0-\xB4\xB6-\xBF]                  # AL
		| \xEF\xBA[\x80-\xBF]                           # AL
		| \xEF\xBB[\x80-\xBC]                           # AL
		| \xD9[\xA0-\xA9\xAB\xAC]                       # AN
		)/x";
    $uni_RE_PATTERN_RTL = "/(
	  \xD6\xBE                                             # R
	| \xD7[\x80\x83\x86\x90-\xAA\xB0-\xB4]                 # R
	| \xDF[\x80-\xAA\xB4\xB5\xBA]                          # R
	| \xE2\x80\x8F                                         # R
	| \xEF\xAC[\x9D\x9F\xA0-\xA8\xAA-\xB6\xB8-\xBC\xBE]    # R
	| \xEF\xAD[\x80\x81\x83\x84\x86-\x8F]                  # R
	| \xF0\x90\xA0[\x80-\x85\x88\x8A-\xB5\xB7\xB8\xBC\xBF] # R
	| \xF0\x90\xA4[\x80-\x99]                              # R
	| \xF0\x90\xA8[\x80\x90-\x93\x95-\x97\x99-\xB3]        # R
	| \xF0\x90\xA9[\x80-\x87\x90-\x98]                     # R
	| \xE2\x80[\xAB\xAE]                                   # RLE & RLO
	)/x";

    if (preg_match($uni_RE_PATTERN_ARABIC, $char) OR preg_match($uni_RE_PATTERN_RTL, $char)) return true; else return false;
}
?>