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[SOLVED] help with header()

SN1P3R_85

By SN1P3R_85
in PHP Coding Help

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SN1P3R_85 Member

SN1P3R_85

Posted
Posted

I honestly dont' really understand the header() funciton, all i know is that i've used it to redirect pages, and its worked some of the times. I've read that if there is any output before you execute the header(), that it wont' work. I am trying to redirect to another page after a use inputs some information in an html form. I store a session previously that contains the url. If you have any questions about my code, please just ask. I've been struggling with this for around a day, and i can't figure out whats wrong. Here is the code:

 

<html>

<head>

<link rel="stylesheet" type="text/css" href="/css/standard.css">

</head>

 

<body>

 

<table class="lnk_bar" border="1" width="100%">

<tr>

<td width="20%"><b><a href="/index.php">home</a></b></td>

<td width="20%"><b><a href="/calc.php">calculator</a></b></td>

<td width="20%"><b><a href="/cobolt.mp3">song</a></b></td>

<td width="20%"><b><a href="/forums/forum_menu.php">forum</a></b></td>

<td width="20%"><b><a href="/register.php">register</a></b></td>

</tr>

</table>

 

<h4 class="forum_in">forum input</h4>

<form class="one" action="forum_process.php" method="post">                //here is the user input

<textarea rows="6" cols="40" name="forum">

</textarea>

<input type="submit" value="submit" />

</form>

 

<?php

include( '../SQL_PASS.inc' );              //mysql login information

include( '../user.inc' );                      //user validation script

 

if (isset($_POST['forum']) && strlen($_POST['forum'])>0)      //if there is text in the input, it will execute the code

{

$url = $_SESSION['return_url'];                              //a session i saved on the previous page, just contains the url

$msg = $_POST['forum'];

 

if (!$con)

{

die('Cannot connect: ' . mysql_error());

}

 

if (!$db_select)

{

die('Cannot select database: ' . mysql_error());

}

 

$username = $user->Username;           //just a pointer variable that contains the username

$insert = mysql_query("INSERT INTO `test_forum` (`User_info`, `User_msg`)

VALUES ('$username', '$msg')");

 

if ($insert)            //here is where it should redirect. It executes fine, and runs the query, but just stays on the same page :(

{

mysql_close($con);                  //first i close my sql connection

header("Location: $url");            //the header should redirect to $url

}

else

{

die('post failed: ' . mysql_error());

}

 

}

else

{

echo "field are not filled";

}

 

?>

 

</body>

</html>

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The Little Guy Prolific Member

The Little Guy

Posted
Posted

More than likely do it like this:

<?php
if (isset($_POST['forum']) && strlen($_POST['forum'])>0)      //if there is text in the input, it will execute the code
{
   $url = $_SESSION['return_url'];                              //a session i saved on the previous page, just contains the url
   $msg = $_POST['forum'];
   
   if (!$con)
   {
      die('Cannot connect: ' . mysql_error());
   }
   
   if (!$db_select)
   {
      die('Cannot select database: ' . mysql_error());
   }

   $username = $user->Username;             //just a pointer variable that contains the username
   $insert = mysql_query("INSERT INTO `test_forum` (`User_info`, `User_msg`)
   VALUES ('$username', '$msg')");

   if ($insert)            //here is where it should redirect. It executes fine, and runs the query, but just stays on the same page Sad
   {
      mysql_close($con);                   //first i close my sql connection
      header("Location: $url");            //the header should redirect to $url
   }
   else
   {
      die('post failed: ' . mysql_error());
   }
   
}
else
{
   echo "field are not filled";
}
?>
<html>
<head>
<link rel="stylesheet" type="text/css" href="/css/standard.css">
</head>

<body>

<table class="lnk_bar" border="1" width="100%">
<tr>
<td width="20%"><a href="/index.php">home[/url]</td>
<td width="20%"><a href="/calc.php">calculator[/url]</td>
<td width="20%"><a href="/cobolt.mp3">song[/url]</td>
<td width="20%"><a href="/forums/forum_menu.php">forum[/url]</td>
<td width="20%"><a href="/register.php">register[/url]</td>
</tr>
</table>

<h4 class="forum_in">forum input</h4>
<form class="one" action="forum_process.php" method="post">                //here is the user input
<textarea rows="6" cols="40" name="forum">
</textarea>
<input type="submit" value="submit" />
</form>

<?php
include( '../SQL_PASS.inc' );              //mysql login information
include( '../user.inc' );                      //user validation script

?>

</body>
</html>

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dubc07 Member

dubc07

Posted
Posted

use this instead

 echo '<meta content="0; URL=../login.php" http-equiv="Refresh" />';

 

 

so it would be 

 if ($insert)            //here is where it should redirect. It executes fine, and runs the query, but just stays on the same page Sad
  {
     mysql_close($con);                   //first i close my sql connection
     echo '<meta content="0; URL=../$url" http-equiv="Refresh" />';            //the header should redirect to $url

 

You can change the 0 to a higher number to allow more time for redirect.

ENJOY

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dubc07 Member

dubc07

Posted
Posted

<?php

 

<?php

if (isset($_POST['forum']) && strlen($_POST['forum'])>0)      //if there is text in the input, it will execute the code

{

  $url = $_SESSION['return_url'];                              //a session i saved on the previous page, just contains the url

  $msg = $_POST['forum'];

 

  if (!$con)

  {

      die('Cannot connect: ' . mysql_error());

  }

 

  if (!$db_select)

  {

      die('Cannot select database: ' . mysql_error());

  }

 

  $username = $user->Username;            //just a pointer variable that contains the username

  $insert = mysql_query("INSERT INTO `test_forum` (`User_info`, `User_msg`)

  VALUES ('$username', '$msg')");

 

  if ($insert)            //here is where it should redirect. It executes fine, and runs the query, but just stays on the same page Sad

  {

      mysql_close($con);                  //first i close my sql connection

      echo '<meta content="0; URL=../"'.$url.'".php" http-equiv="Refresh" />';            //the header should redirect to $url

  }

  else

  {

      die('post failed: ' . mysql_error());

  }

 

}

else

{

  echo "field are not filled";

}

?>

<html>

<head>

<link rel="stylesheet" type="text/css" href="/css/standard.css">

</head>

 

<body>

 

<table class="lnk_bar" border="1" width="100%">

<tr>

<td width="20%"><a href="/index.php">home[/url]</td>

<td width="20%"><a href="/calc.php">calculator[/url]</td>

<td width="20%"><a href="/cobolt.mp3">song[/url]</td>

<td width="20%"><a href="/forums/forum_menu.php">forum[/url]</td>

<td width="20%"><a href="/register.php">register[/url]</td>

</tr>

</table>

 

<h4 class="forum_in">forum input</h4>

<form class="one" action="forum_process.php" method="post">                //here is the user input

<textarea rows="6" cols="40" name="forum">

</textarea>

<input type="submit" value="submit" />

</form>

 

<?php

include( '../SQL_PASS.inc' );              //mysql login information

include( '../user.inc' );                      //user validation script

 

?>

 

</body>

</html>

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SN1P3R_85 Member

SN1P3R_85

Posted
  • Author
Posted

ya, i figured it out after a while. I used the meta thing, and it redirects me, but it redirects me to the main page. Since i set the session, im guessing this is one of my other errors. This is the $url variable: $url = $_SESSION['return_url'];

               

$_SESSION['return_url'] = "http://".$_SERVER['HTTP_HOST'].$_SERVER['SCRIPT_NAME'];                                                                                                                                                                                       

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SN1P3R_85 Member

SN1P3R_85

Posted
  • Author
Posted

could you explain the meta thing you wrote. echo '<meta http-equiv="Refresh" content="3;url=../"'.$url.'" />';

 

I understand what http-equiv does, i understand what the content does, but why did you move up one directory before inserting the url? also, don't you have to end the quote that started with content?

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