<?

if ( isset($name) == 0 || isset($c_name) == 0 ) {
  echo ( "<form action=form.php method=post>" );
  echo ( "<p>Bitte geben Sie Ihren Namen ein." );
  echo ( "<br><input type=text name=name size=30 maxlength=30>" );
  echo ( "<p>Wiederholen Sie bitte die Eingabe." );
  echo ( "<br><input type=text name=c_name size=30 maxlength=30>" );
  echo ( "<p><input type=reset value=Cancel><input type=submit value=Senden>" );
  echo ( "</form>" );
} elseif ( $name == "" || $c_name == "" ) {
  echo ( "Bitte Eingabefelder ausfüllen. | <a href=\"javascript:history.back()\">Korrektur</a>" );
} elseif ( $name != $c_name ) {
  echo ( "Wiederholung ungleich Eingabe. | <a href=\"javascript:history.back()\">Korrektur</a>" );
} else {
  echo ( "Die Eingabe ist korrekt. | <a href=\"/project/manual/php_man_j.shtml\">Ende</a>" );
};

<?

$path = "/home/www/pub/fh1000/huecker.com/msw/php/samples/gb";
$file = "$path/.gb.count";

if ( file_exists ( $path ) == 0 ) { mkdir ( $path, 0777 ); };
if ( file_exists ( $file ) == 0 ) { touch ( $file ); };

if ( isset($name) == 0 || isset($email) == 0 || isset($note) == 0) {

  echo ( "<form action=gb_input.php method=post>" );

  echo ( "<p>Bitte geben Sie Ihren Namen ein." );
  echo ( "<br><input type=text name=name size=30 maxlength=30>" );

  echo ( "<p>Ihre E-Mail Adresse." );
  echo ( "<br><input type=text name=email size=30 maxlength=30>" );

  echo ( "<p>Ihr Beitrag zu unserem Gästebuch." );
  echo ( "<br><textarea name=note rows=6 cols=43 wrap=virtual></textarea>" );

  echo ( "<p><input type=reset value=Cancel><input type=submit value=Senden>" );
  echo ( "</form>" );

} elseif ( $name == "" || $email == "" || $note == "" ) {

  echo ( "Bitte Eingabefelder ausfüllen. | <a href=\"javascript:history.back()\">Korrektur</a>" );

} else {

  $fp = fopen($file, 'r+');
   flock ($fp, LOCK_SH);
   $count = fread($fp, 4096);
   rewind ( $fp );
   fwrite($fp, ++$count);
   fflush ($fp);
   flock ($fp, LOCK_UN);
  fclose($fp);

  $note = str_replace("\x0d", "<br>", $note);
  $note = str_replace("\n", "", $note);

  $fp = fopen ( "$path/$count.dat", 'w' );
   fwrite ( $fp, time() . "\n" ); // . Gästebuch schreiben
   fwrite ( $fp, "$name\n" ); // . Gästebuch schreiben
   fwrite ( $fp, "$email\n" ); // . Gästebuch schreiben
   fwrite ( $fp, "$note" ); // . Gästebuch schreiben
  fclose ( $fp );

<?

$path = "/home/www/pub/fh1000/huecker.com/msw/php/samples/gb";

$handle = opendir ("$path");
while ($file = readdir ( $handle ) ) {
  if ( substr_count ( $file, '.dat' ) == 1 ) { $files[] = $file; };
};
closedir ( $handle );

rsort( $files ); // rsort = increasing (absteigend); sort = decreasing(aufsteigend);
foreach ( $files as $file ) {
  $fp = fopen ( "$path/$file", 'r' );
   $time = fgets ( $fp, 4096 );
   $name = fgets ( $fp, 4096 );
   $email = fgets ( $fp, 4096 );
   $note = fgets ( $fp, 4096 );
  fclose ( $fp );

  setlocale(LC_ALL, 'de_DE');
  $time = strftime ( "%A, %d. %B %Y %H:%M:%S %Z", $time );
  $name = chop ( $name );
  $email = chop ( $email );
  $note = chop ( $note );
  $note = stripslashes ( $note ); // (\"\'\n) -> (" ')