Search the Community

YO WWW.W3SCHOOLS.COM SECURITY CERTIFICATE EXPIRED 5/5/2020 SOOOOOOOOOO GET A NEW CERTIFICATE MEH

Hi, in some code of w3schools, I found that there is !important attribute. But I didn't understand it's using. Guys, please help me to understand it. Thank you in advance.

First of all,A BIG thanks to w3schools for teaching me HTML..But now I am getting interested in Ethical Hacking..There is no site in Milky Way like W3schools I know but still is there any site as close as w3schools that can teach me ethical hacking step by step for Free?!?!

Hi for all, I am now develop web pages ,one of them is downloading and uploading file from DB and to DB I programed it by php and it is OK when the file's name written in English ,the problem happened when the file's name written in Arabic , I did not know where the problem exactly notes: 1- I changed the encoding in DB to UTF-8. 2- Also in my code I try to encode it but still the problem not solved . please try to help me download code: mysql_query("SET NAMES 'UTF8'"); mysql_query('SET CHARACTER SET utf8'); mysql_query('character_set_server=utf8'); if(isset($_GET['id2'])) { // if id is set then get the file with the id from database $id = $_GET['id2']; $query = "SELECT attachname, attachtype, attachsize, attachment " . "FROM additional_task WHERE ID = '$id'"; $result = mysql_query($query) or die('Error, query failed'); list($attachname,$attachtype,$attachsize,$attachment) = mysql_fetch_array($result); header("Content-length:$attachsize"); if( $attachtype=="application/docx"){ header("Content-type: application/docx; charset=utf-8 ; filename=<utf8 byte sequence>'"); } if( $attachtype=="application/pdf"){ header("Content-type: application/pdf; charset=utf-8 encoding=UTF-8'"); } if( $attachtype=="application/png"){ header("Content-type: application/png; charset=utf-8 encoding=UTF-8'"); } else{ header("Content-type: $attachtype; charset=utf-8 encoding=UTF-8'"); } //$dncoded_fname = base64_decode($attachname); header("Content-Disposition: attachment; filename=$attachname"); header('Content-Description: File Transfer'); header('Content-Type: application/octet-stream'); header('Expires: 0'); header('Cache-Control: must-revalidate'); header('Pragma: public'); header("Content-Transfer-Encoding: binary"); ob_clean(); flush(); readfile("$attachname");