Cookies
ik wil mijn site namelijk cookie based maken,
zodat je maar 1x hoeft in te loggen enzo..
maar hoe werkt dan zoiets?
//login
}
if($_POST['password'] == "goed"){
setcookie("loggedin", "ik ben wel ingelogd!", time()+3600*24,"/",".phphulp.nl",0);
}
edit: PS: dit is niet de meest veilige manier ^^,
En verder kun je ook sessions gebruiken, daarmee blijft iemand ingelogd totdat hij zijn browser afsluit.
PPS: hou er wel rekeing mee dat er mensen zijn die cookies uitzetten. Dus je site cookie-based maken is ook niet echt een goed idee, nee, maak hem liever cookie-enabled.
Gewijzigd op 10/05/2005 20:25:00 door Jelmer -
edit: hoe haal ik da gegeven van username uit de cookie om te gebruiken in bijv. een query?
Gewijzigd op 12/05/2005 10:52:00 door Yme-Jan
Warning: Cannot modify header information - headers already sent by (output started at /usr/opt/usr/wa4o6920633/DOMAIN/HTML/ts/level/home.php:17) in /usr/opt/usr/wa4o6920633/DOMAIN/HTML/ts/php/login.php on line 15
Code (php)
hij maakt de cookie niet aan.
Fout 2:
wil ik inloggen met sessie:
Code (php)
hij kijkt of de cookie bestaat, besaat niet.
echter de sessie bestaat wel,
tog staat er Niet ingelogd..
hoe kan ik er voor zorgen dat hij de 1 met rust laat als die er niet is..
Edit:
Fout 2 is opgelost
Gewijzigd op 12/05/2005 11:28:00 door Yme-Jan
Code (php)
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<?php
if($session){
echo "You are already logged in.";
}else{
#########################################
if($_SERVER['REQUEST_METHOD'] == POST){
$username = $_POST['username'];
$password = md5($_POST['password']);
$b_cookie = $_POST['cookie'];
$query = mysql_query("SELECT * FROM `ts_members` WHERE `username`='$username' AND `password`='$password'");
$check = mysql_fetch_object($query);
if(mysql_num_rows($query) != 0 && $check->activated == 1){
if($b_cookie == ON){
setcookie("treadstone", "$username", time()+3600*24,"/",".a4o.nl",1);
}else{
$_SESSION['ts'] = $username;
}
echo "<table width=\"90%\" cellSpacing=\"0\" cellPadding=\"2\" border=\"1\" bordercolor=\"#000000\" style=\"border-collapse: collapse\" align=\"center\">";
echo "<tr><td><b>Login</b></td></tr>";
echo "<tr><td>You are logged in successfully. $b_cookie </td></tr>";
echo "</table>";
echo "<meta http-equiv=\"refresh\" content=\"1; url=index.php\">";
}else{
echo "<table width=\"90%\" cellSpacing=\"0\" cellPadding=\"2\" border=\"1\" bordercolor=\"#000000\" style=\"border-collapse: collapse\" align=\"center\">";
echo "<tr><td><b>ERROR</b></td></tr>";
echo "<tr><td>Login Failure:<br>
1. Wrong Username or Password<br>
2. Empty Fields<br>
3. Account UnActivated";
echo "</table>";
}
}else{
?>
if($session){
echo "You are already logged in.";
}else{
#########################################
if($_SERVER['REQUEST_METHOD'] == POST){
$username = $_POST['username'];
$password = md5($_POST['password']);
$b_cookie = $_POST['cookie'];
$query = mysql_query("SELECT * FROM `ts_members` WHERE `username`='$username' AND `password`='$password'");
$check = mysql_fetch_object($query);
if(mysql_num_rows($query) != 0 && $check->activated == 1){
if($b_cookie == ON){
setcookie("treadstone", "$username", time()+3600*24,"/",".a4o.nl",1);
}else{
$_SESSION['ts'] = $username;
}
echo "<table width=\"90%\" cellSpacing=\"0\" cellPadding=\"2\" border=\"1\" bordercolor=\"#000000\" style=\"border-collapse: collapse\" align=\"center\">";
echo "<tr><td><b>Login</b></td></tr>";
echo "<tr><td>You are logged in successfully. $b_cookie </td></tr>";
echo "</table>";
echo "<meta http-equiv=\"refresh\" content=\"1; url=index.php\">";
}else{
echo "<table width=\"90%\" cellSpacing=\"0\" cellPadding=\"2\" border=\"1\" bordercolor=\"#000000\" style=\"border-collapse: collapse\" align=\"center\">";
echo "<tr><td><b>ERROR</b></td></tr>";
echo "<tr><td>Login Failure:<br>
1. Wrong Username or Password<br>
2. Empty Fields<br>
3. Account UnActivated";
echo "</table>";
}
}else{
?>
Code (php)
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<? $_SERVER['PHP_SELF'] ?>
Code (php)
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<?
echo "<table width=\"90%\" cellSpacing=\"0\" cellPadding=\"2\" border=\"1\" bordercolor=\"#000000\" style=\"border-collapse: collapse\" align=\"center\">";
echo "<tr><td width=\"25%\">Username:</td>";
echo "<td width=\"75%\" align=\"center\"><input type=\"text\" style=\"width: 90%\" name=\"username\"></td></tr>";
echo "<tr><td width=\"25%\">Password:</td>";
echo "<td width=\"75%\" align=\"center\"><input type=\"password\" style=\"width: 90%\" name=\"password\"></td></tr>";
echo "<tr><td width=\"25%\">Remember Me:</td>";
echo "<td width=\"75%\" align=\"center\"><input type=\"checkbox\" name=\"cookie\" value=\"ON\"></td></tr>";
echo "<tr><td colspan=\"2\"><input type=\"submit\" value=\"Login\"></td></tr>";
echo "</table>";
echo "</form>";
} }
?>
echo "<table width=\"90%\" cellSpacing=\"0\" cellPadding=\"2\" border=\"1\" bordercolor=\"#000000\" style=\"border-collapse: collapse\" align=\"center\">";
echo "<tr><td width=\"25%\">Username:</td>";
echo "<td width=\"75%\" align=\"center\"><input type=\"text\" style=\"width: 90%\" name=\"username\"></td></tr>";
echo "<tr><td width=\"25%\">Password:</td>";
echo "<td width=\"75%\" align=\"center\"><input type=\"password\" style=\"width: 90%\" name=\"password\"></td></tr>";
echo "<tr><td width=\"25%\">Remember Me:</td>";
echo "<td width=\"75%\" align=\"center\"><input type=\"checkbox\" name=\"cookie\" value=\"ON\"></td></tr>";
echo "<tr><td colspan=\"2\"><input type=\"submit\" value=\"Login\"></td></tr>";
echo "</table>";
echo "</form>";
} }
?>
hier zit de fout op regel 15:
Warning: Cannot modify header information - headers already sent by (output started at /usr/opt/usr/wa4o6920633/DOMAIN/HTML/ts/level/home.php:17) in /usr/opt/usr/wa4o6920633/DOMAIN/HTML/ts/php/login.php on line 15
regel 15 is de setcookie...
weet iemand mss hoe ik dit kan verhelpen?