in PHP
$arabic_regex = '/[\x{0600}-\x{06FF}|\x{0750}-\x{077f}|\x{fb50}-\x{fbc1}|\x{fbd3}-\x{fd3f}|\x{fd50}-\x{fd8f}|\x{fd92}-\x{fdc7}|\x{fe70}-\x{fefc}|\x{FDF0}-\x{FDFD}]/u';