--TEST-- filter_var() and FILTER_SANITIZE_SPECIAL_CHARS --SKIPIF-- <?php if (!extension_loaded("filter")) die("skip"); ?> --FILE-- <?php var_dump(filter_var("?><!@#$%^&*()}{~Qwertyuilfdsasdfgmnbvcxcvbn", FILTER_SANITIZE_SPECIAL_CHARS)); var_dump(filter_var("<data&sons>", FILTER_SANITIZE_SPECIAL_CHARS)); var_dump(filter_var("", FILTER_SANITIZE_SPECIAL_CHARS)); var_dump(filter_var("?><!@#$%^&*()}{~Qwertyuilfdsasdfgmnbvcxcvbn", FILTER_SANITIZE_SPECIAL_CHARS, FILTER_FLAG_ENCODE_LOW)); var_dump(filter_var("<data&sons>", FILTER_SANITIZE_SPECIAL_CHARS, FILTER_FLAG_ENCODE_LOW)); var_dump(filter_var("", FILTER_SANITIZE_SPECIAL_CHARS, FILTER_FLAG_ENCODE_LOW)); var_dump(filter_var("?><!@#$%^&*()}{~Qwertyuilfdsasdfgmnbvcxcvbn", FILTER_SANITIZE_SPECIAL_CHARS, FILTER_FLAG_ENCODE_HIGH)); var_dump(filter_var("<data&sons>", FILTER_SANITIZE_SPECIAL_CHARS, FILTER_FLAG_ENCODE_HIGH)); var_dump(filter_var("", FILTER_SANITIZE_SPECIAL_CHARS, FILTER_FLAG_ENCODE_HIGH)); var_dump(filter_var("кириллица", FILTER_SANITIZE_SPECIAL_CHARS, FILTER_FLAG_ENCODE_HIGH)); var_dump(filter_var("кириллица", FILTER_SANITIZE_SPECIAL_CHARS, FILTER_FLAG_ENCODE_LOW)); echo "Done\n"; ?> --EXPECT-- string(55) "?><!@#$%^&*()}{~Qwertyuilfdsasdfgmnbvcxcvbn" string(23) "<data&sons>" string(0) "" string(55) "?><!@#$%^&*()}{~Qwertyuilfdsasdfgmnbvcxcvbn" string(23) "<data&sons>" string(0) "" string(55) "?><!@#$%^&*()}{~Qwertyuilfdsasdfgmnbvcxcvbn" string(23) "<data&sons>" string(0) "" string(108) "кириллица" string(18) "кириллица" Done