classe per bakup che non invia gli header

[rocco.mod]

salve ragazzi avrei un problema con una classe per il bakup , sarebbe che non mi effettua il download del files ma bensi' me lo stampa a video , perche sembrerebbe una questione degli otput cortesemente mi date una mano grazie

la richiamo cosi

        $backup = new backup(false, true, true , false);
        $backup->_backup(); 

        class backup {
        var $newline;
        var $struct_only = false;
        var $output = true;
        var $createtable = true;
        var $compress = true;
        var $filename = "";
        var $useragent = "";

        function backup($struct_only = false , $output = true , $createtable = true ,$compress = true, $filename = "" )
        {   
            $this->output = $output;
            $this->createtable = $createtable;
            $this->struct_only = $struct_only;
            $this->compress = $compress;
            $this->filename = $filename;
            $this->newline = $this->_define_newline();
            $this->useragent = trim(substr($_SERVER['HTTP_USER_AGENT'], 0, 60));
        }

        function _backup()
        {
            global $dbcore ;
            $now = gmdate( 'D, d M Y H:i:s' ) . ' GMT';
            $newfile .= "#########################################" . $this->newline;
            $newfile .= "# rcSupport Backup System" . $this->newline;
            $newfile .= "# Database:". DATABASE_NAME  . $this->newline;
            $newfile .= "# Date: $now" . $this->newline;
            $newfile .= "#########################################" . $this->newline . $this->newline;
            $result = $dbcore->query( "SHOW TABLES FROM `".$dbcore->escape(DATABASE_NAME)."`" );
            while ( list($table) = $dbcore->fetch_row($result))
            {
                if ( !$createtable ){
                      $newfile .= $this->_get_def($table);
                      $newfile .= "$this->newline";
                      }
                if ( !$struct_only ){
                       $newfile .= $this->_get_content( $table );
                      $newfile .= "$this->newline";
                }
                $i++;
            }
            $this->_out($newfile);
        }

        function _out($dump)
        {   
            if ($this->filename)
            {
                $fptr = fopen($this->filename, "wb" );
                if ($fptr)
                {
                     if($this->compress)
                    {
                     $gzbackupData = "\x1f\x8b\x08\x00\x00\x00\x00\x00" . substr(gzcompress($dump, 9), 0, -4) . pack('V', crc32($dump)) . pack('V', strlen($dump));
                        fwrite($fptr , $gzbackupData);
                    }else{ 
                        fwrite($fptr , $dump);
                    }
                    fclose($fptr);
                }
            } else {
                if(($this->compress) && ($this->output))
                {
                    $gzbackupData = "\x1f\x8b\x08\x00\x00\x00\x00\x00" . substr(gzcompress($dump, 9), 0, -4) . pack('V', crc32($dump)) . pack('V', strlen($dump));
                    echo $gzbackupData ;
                }else{
                   echo $dump ;
                }
            }
        }

        function _get_def($tablename)
        {
            global $dbcore ;
            $def = "";
            $def .= "#------------------------------------------" . $this->newline;
            $def .= "# Table definition for $tablename" . $this->newline;
            $def .= "#------------------------------------------" . $this->newline;
            $def .= "DROP TABLE IF EXISTS $tablename;" . $this->newline . $this->newline;
            $def .= "CREATE TABLE $tablename (" . $this->newline;
            $result = $dbcore->query( "SHOW FIELDS FROM `".$dbcore->escape($tablename)."`" ) or die( "Table $tablename not existing in database" );
            while ( $row = $dbcore->fetch_array($result) )
            {
                
                 $def .= " ".$row["Field"]."`".$row["Type"];   
                if($row["Null"] != "YES"){
                   $def .= " NOT NULL";
                }
                if($row["Default"] != ""){
                    if ( $row["Default"] == "CURRENT_TIMESTAMP" ){
                         $def .= " default CURRENT_TIMESTAMP";
                        }else{
                            $def .= " default $row[Default]";
                        }
                    }
                if($row['Extra'] != "" ){
                   $def .= " $row[Extra]";
                   }
                   $def .= ",$this->newline";
                }
                   $def = ereg_replace( ",$this->newline$", "", $def);


            $result = $dbcore->query("SHOW KEYS FROM `".$tablename."`" );
            while ($row = $dbcore->fetch_array($result))
            {
                $kname = $row[Key_name];
                if ( ($kname != "PRIMARY") && ($row[Non_unique] == 0) ) $kname = "UNIQUE|$kname";
                if ( !isset($index[$kname]) ) $index[$kname] = array();
                $index[$kname][] = $row[Column_name];
            }

            while (list($x, $columns) = @each($index) )
            {
                $def .= ",$this->newline";
                if ( $x == "PRIMARY" ) $def .= "   PRIMARY KEY (" . implode( $columns, ", " ) . ")";
                else if ( substr($x, 0, 6) == "UNIQUE" ) $def .= "   UNIQUE " . substr( $x, 7 ) . " (" . implode( $columns, ", " ) . ")";
                else  $def .= "   KEY $x (" . implode( $columns, ", " ) . ")";
            }
            $def .= "$this->newline);";

            return (stripslashes($def) );
        }

        function _get_content( $tablename )
        {
            global $dbcore ;
            $content = "";

            $result = $dbcore->query("SELECT * FROM  `".$tablename."`" );

            if ($dbcore->num_rows($result) > 0)
            {
                $content .= "#------------------------------------------" . $this->newline;
                $content .= "# Data inserts for $tablename" . $this->newline;
                $content .= "#------------------------------------------" . $this->newline;
            }

            while ($row = $dbcore->fetch_row($result))
            {
                $insert = "INSERT INTO `".$tablename."` VALUES (";

                for ( $j = 0; $j < $dbcore->num_fields($result); $j++ )
                {
                    if ( !isset($row[$j]) ) $insert .= "NULL,";
                    elseif ( $row[$j] != "" ) $insert .= "'" . addslashes( $row[$j] ) . "',";
                    else  $insert .= "'',";
                }

                $insert = ereg_replace( ",$", "", $insert );
                $insert .= ");$this->newline";
                $content .= $insert;
            }

            return $content . $this->newline;
        }

        function _define_newline()
        {
            $unewline = "\r\n";

            if ( strstr(strtolower($this->useragent), 'win') )
            {
                $unewline = "\r\n";
            }else if ( strstr(strtolower($this->useragent), 'mac') )
            {
              $unewline = "\r";
            }else{
                    $unewline = "\n";
                }

                return $unewline;
        }

        function _get_browser_type()
        {
            $USER_BROWSER_AGENT = "";

            if ( ereg('OPERA(/| )([0-9].[0-9]{1,2})', strtoupper($this->useragent), $log_version) )
            {
            $USER_BROWSER_AGENT = 'OPERA';
            }
            else if ( ereg('MSIE ([0-9].[0-9]{1,2})', strtoupper($this->useragent), $log_version) )
            {
            $USER_BROWSER_AGENT = 'IE';
            }
            else if ( ereg('OMNIWEB/([0-9].[0-9]{1,2})', strtoupper($this->useragent), $log_version) )
            {
            $USER_BROWSER_AGENT = 'OMNIWEB';
            }
            else if ( ereg('MOZILLA/([0-9].[0-9]{1,2})', strtoupper($this->useragent), $log_version) )
            {
            $USER_BROWSER_AGENT = 'MOZILLA';
            }
            else if ( ereg('KONQUEROR/([0-9].[0-9]{1,2})', strtoupper($this->useragent), $log_version) )
            {
            $USER_BROWSER_AGENT = 'KONQUEROR';
            }
            else
            {
            $USER_BROWSER_AGENT = 'OTHER';
            }

         return $USER_BROWSER_AGENT;
        }

        function _get_mime_type()
        {
            $USER_BROWSER_AGENT = $this->_get_browser_type();

            $mime_type = ( $USER_BROWSER_AGENT == 'IE' || $USER_BROWSER_AGENT == 'OPERA' ) ? 'application/octetstream' : 'application/octet-stream';
            return $mime_type;
        }

        function perform_backup()
        {
           
            $now = gmdate( 'D, d M Y H:i:s' ) . 'GMT';
            
            if ($this->compress  && extension_loaded("zlib"))
            {
                $filename =  $filename ? $filename : DATABASE_NAME ;
                $ext = "sql.gz";
            }else{
                $filename =  $filename ? $filename : DATABASE_NAME ;
                $ext = "sql";
            }
            $USER_BROWSER_AGENT = $this->_get_browser_type();
            /*  if ( $this->filename )
            {
                $this->_backup();
            } 
            else */  if($this->output == true )
                   {
                    header('Content-Type: ' . $this->_get_mime_type());
                    header('Expires: ' . $now );
                    if ( $USER_BROWSER_AGENT == 'IE' )
                    {
                        header('Content-Disposition: inline; filename="' . $filename . '.' . $ext . '"' );
                        header('Cache-Control: must-revalidate, post-check=0, pre-check=0' );
                        header('Pragma: public' );
                    }else{
                        header('Content-Disposition: attachment; filename="' . $filename . '.' . $ext . '"' );
                        header('Pragma: no-cache' );
                    }
                    $this->_backup(); 
                } else{
                     echo "<html><body><pre>"; 
                     echo htmlspecialchars( $this->_backup());
                     echo "</PRE></BODY></HTML>";
                } 
        }
    } 

[rocco.mod]

buojn giorno a tutti mi potreste aiutare grazie

[k.b]

Non mi sono letto tutto il codice, ma non e' che magari e' colpa di quel "Content-Disposition: inline;" che viene inviato se il browser e' IE?

[rocco.mod]

ciao , quando ho testato la classe , funzionava perfettamente