hola tengo un problema que cuando inicio sesion en una pagina que estoy haciendo me aparece esto
Cita: Warning: Cannot modify header information - headers already sent by (output started at /home/likespos/public_html/entrar.php:2) in /home/likespos/public_html/entrar.php on line 18
Warning: Cannot modify header information - headers already sent by (output started at /home/likespos/public_html/entrar.php:2) in /home/likespos/public_html/entrar.php on line 19
Warning: Cannot modify header information - headers already sent by (output started at /home/likespos/public_html/entrar.php:2) in /home/likespos/public_html/entrar.php on line 20
Warning: Cannot modify header information - headers already sent by (output started at /home/likespos/public_html/entrar.php:2) in /home/likespos/public_html/entrar.php on line 21
Warning: Cannot modify header information - headers already sent by (output started at /home/likespos/public_html/entrar.php:2) in /home/likespos/public_html/entrar.php on line 22
Warning: Cannot modify header information - headers already sent by (output started at /home/likespos/public_html/entrar.php:2) in /home/likespos/public_html/entrar.php on line 23
Warning: Cannot modify header information - headers already sent by (output started at /home/likespos/public_html/entrar.php:2) in /home/likespos/public_html/entrar.php on line 24
este es el php
Código PHP:
<?php
require 'config.php' ;
if($_POST[enviar]) {
function quitar($texto) {
$texto = trim($texto) ;
$texto = htmlspecialchars($texto) ;
$texto = str_replace(chr(160),'',$texto) ;
return $texto ;
}
$nick = quitar($_POST[nick]) ;
$contrasena = quitar($_POST[contrasena]) ;
$con = mysql_query("select id,contrasena,imagen,exten,voto_usuario from usuarios where nick='$nick'") ;
$datos = mysql_fetch_assoc($con) ;
if(mysql_num_rows($con)) {
if($datos[contrasena] == $contrasena) {
setcookie('uid',$datos[id],time()+604800) ;
setcookie('unick',$nick,time()+604800) ;
setcookie('ucontrasena',$contrasena,time()+604800) ;
setcookie('uimagen',$datos[imagen],time()+604800) ;
setcookie('uexten',$datos[exten],time()+604800) ;
setcookie('uvoto_usuario',$datos[voto_usuario],time()+604800) ;
header("location: $_SERVER[HTTP_REFERER]") ;
}
else {
echo '<style type="text/css">
body {
background-color: #333;
}
</style><p style="color:#EFEFEF; font-size: 36px; font-weight: bold; font-family: Verdana, Geneva, sans-serif;">La contraseña es incorrecta. Haz click <a href="javascript:history.back(-1)">aquí</a> para regresar.</p>' ;
}
}
else {
echo '<style type="text/css">
body {
background-color: #333;
}
</style><p style="color:#EFEFEF; font-size: 36px; font-weight: bold; font-family: Verdana, Geneva, sans-serif;">El nick no existe. Haz click <a href="javascript:history.back(-1)">aquí</a> para regresar.</p>' ;
}
}
?>
parase ser un error al crear las cookie espero que alguien pueda ayudarme :S