Proxy Error?

[Clone512]

Why does this always yield a 502 proxy error?

 

<?php

  require("connect.php");

  include("design/header.php");

  include("design/navigation.php");

 

 

  if(!isset($_SESSION['user'])) {

  die("You must <a href='' style='color:blue'>login</a> first!");

  }

  $user = $_SESSION['user'];

 

  $id = $_GET['id'];

  if($id) {

  $query = mysql_query("SELECT * FROM inbox WHERE id='$id'");

  while ($row = mysql_fetch_assoc($query)) {

    $from = $row['from'];

    $to = $row['to'];

    $message = $row['message'];

    $sbj = $row['subject'];

    $title = $sbj;

   

    if(substr($title, 1, 3)!="RE:") {

    $title = "RE: ".$title;

    }

 

    if($to != $user) {

    echo "You cannot view other peoples' mail!";

    }

    else {

    $t = $row['sent'];

    $secs = time()-$t;

 

    $minutes = 0;

    $seconds = 0;

    $hours = 0;

    if($secs >= 60) {

      for($x=0;$x<=$secs;$x++) {

      if($x == ($minutes + 1)*60) {

        $minutes++;

        $seconds = $secs - ($minutes * 60);

      }

      }

      if($minutes >= 60) {

      $storemin = $minutes;

      for($x=0;$x<=$storemin;$x++) {

        if($x == ($hours + 1)*60) {

        $hours++;

        $minutes = $minutes - 60;

        }

      }

      }

    }

    $mode = $_GET['mode'];

    $submit = $_POST['submit'];

 

    if($mode == 'send' && $submit) {

      $id = $_GET['id'];

      $query = mysql_query("SELECT * FROM inbox WHERE id='$id'");

      $row = mysql_fetch_assoc($query);

      $t = time();

      $to = $row['from'];

      $subject = $_POST['subject'];

      $reply = $_POST['reply'];

 

      mysql_query("INSERT INTO inbox VALUES ('$t', '$to', '$user', '$subject', '$reply', '')");

 

      echo "<script language='javascript'>window.location='inbox.php';</script>";

    }

 

    if($mode && $mode == 'reply') {

    if($hours > 1) {

      $d = date("m/ d/ y");

      $sPattern = '/\s*/m';

      $d = preg_replace( $sPattern, '', $d );

      $m = "Sent by $user at $d";

      if(strlen($m)!=52) {

      $alt = false;

      for($x=0;$x<52;$x++) {

      if(strlen($m)==52) {

        break;

      }

        if($alt) {

        $m = "-".$m;

        }

        else {

        $m = $m."-";

        }

        $alt = !$alt;

      }

      }

      echo "<form action='message.php?id=$id&mode=send' method='POST'><center><b>Sent by $from $hours Hours, $minutes Minutes, and $seconds Seconds ago:</b><br><input type='text' size='57' name='subject' value='$title'><br><textarea cols=50 rows=9>$message</textarea><br><br><br>

      <textarea cols=50 rows=9 name='reply'>\n\n\n$m\n$message</textarea><br>

                

                

                

                

                

               

             

      <input type='submit' value='Send' name='submit'></form>";

    }

    if($hours==1) {

      $d = date("m/ d/ y");

      $sPattern = '/\s*/m';

      $d = preg_replace( $sPattern, '', $d );

      $m = "Sent by $user at $d";

      if(strlen($m)!=52) {

      $alt = false;

      for($x=0;$x<52;$x++) {

      if(strlen($m)==52) {

        break;

      }

        if($alt) {

        $m = "-".$m;

        }

        else {

        $m = $m."-";

        }

        $alt = !$alt;

      }

      }

      echo "<form action='message.php?id=$id&mode=send' method='POST'><center><b>Sent by $from $hours Hour, $minutes Minutes, and $seconds Seconds ago:</b><br><input type='text' size='57' name='subject' value='$title'><br><textarea cols=50 rows=9>$message</textarea><br><br><br>

      <textarea cols=50 rows=9 name='reply'>\n\n\n$m\n$message</textarea><br>

                

                

                

                

                

               

             

      <input type='submit' value='Send' name='submit'></form>";

    }

    if($minutes > 0 && $hours < 1) {

      $d = date("m/ d/ y");

      $sPattern = '/\s*/m';

      $d = preg_replace( $sPattern, '', $d );

      $m = "Sent by $user at $d";

      if(strlen($m)!=52) {

      $alt = false;

      for($x=0;$x<52;$x++) {

      if(strlen($m)==52) {

        break;

      }

        if($alt) {

        $m = "-".$m;

        }

        else {

        $m = $m."-";

        }

        $alt = !$alt;

      }

      }

      echo "<form action='message.php?id=$id&mode=send' method='POST'><center><b>Sent by $from $minutes Minutes, and $seconds Seconds ago:</b><br><input type='text' size='57' name='subject' value='$title'><br><textarea cols=50 rows=9>$message</textarea><br><br><br>

      <textarea cols=50 rows=9 name='reply'>\n\n\n$m\n$message</textarea><br>

                

                

                

                

                

               

             

      <input type='submit' value='Send' name='submit'></form>";

    }

    if ($minutes == 0) {

      $d = date("m/ d/ y");

      $sPattern = '/\s*/m';

      $d = preg_replace( $sPattern, '', $d );

      $m = "Sent by $user at $d";

      if(strlen($m)!=52) {

      $alt = false;

      for($x=0;$x<52;$x++) {

      if(strlen($m)==52) {

        break;

      }

        if($alt) {

        $m = "-".$m;

        }

        else {

        $m = $m."-";

        }

        $alt = !$alt;

      }

      }

      echo "<form action='message.php?id=$id&mode=send' method='POST'><center><b>Sent by $from $seconds Seconds ago:</b><br><textarea cols=50 rows=9>$message</textarea><br><br>

      <textarea cols=50 rows=9 name='reply'>\n\n\n$m\n$message</textarea><br>

                

                

                

                

                

               

             

      <input type='submit' value='Send' name='submit'></form>";

    }

    }

    else {

    if($hours==1) {

      echo "<center><b>Sent by $from $hours Hour, $minutes Minutes, and $seconds Seconds ago:</b><br><textarea cols=50 rows=9>$message</textarea><br>          

                

                

                

                

         

      <input type='button' value='Delete' onclick='javascript:window.location=\"delete.php?id=$id\"'><input type='button' value='Reply' onclick='javascript:window.location=\"message.php?id=$id&mode=reply\"'>";

    }

    if($hours > 1) {

      echo "<center><b>Sent by $from $hours Hours, $minutes Minutes, and $seconds Seconds ago:</b><br><br>Subject:<br>$sbj<br><textarea cols=50 rows=9>$message</textarea><br>          

                

                

                

                

         

      <input type='button' value='Delete' onclick='javascript:window.location=\"delete.php?id=$id\"'><input type='button' value='Reply' onclick='javascript:window.location=\"message.php?id=$id&mode=reply\"'>";

    }

    if($minutes > 0 && $hours < 1) {

      echo "<center><b>Sent by $from $minutes Minutes, and $seconds Seconds ago:</b><br><textarea cols=50 rows=9>$message</textarea><br>          

                

                

                

                

         

      <input type='button' value='Delete' onclick='javascript:window.location=\"delete.php?id=$id\"'><input type='button' value='Reply' onclick='javascript:window.location=\"message.php?id=$id&mode=reply\"'>";

    }

    if ($minutes == 0 && $hours == 0) {

      echo "<center><b>Sent by $from $seconds Seconds ago:</b><br><textarea cols=50 rows=9>$message</textarea><br>          

                

                

                

                

         

      <input type='button' value='Delete' onclick='javascript:window.location=\"delete.php?id=$id\"'><input type='button' value='Reply'>";

    }

    }

    }

  }

  }

include("design/footer.php");

?>