<form action = "flight_time002_99.php" method = "post">
??? <br />
<select name="f_in">
<option value = "0">?????</option>
<option value = "1">????</option>
<option value = "2">??</option>
<option value = "3">???????</option>
</select>
<input type="submit" value="??" />
</form>

<form action = "flight_time002_99.php" method = "post">
<p>
<input name="f_in" type="radio" value="1">
????
<input name="f_in" type="radio" value="2">
??
<input name="f_in" type="radio" value="3">
???????</p>
<p>
<input type="submit" name="Submit" value="??">
</p>
</form>

<?php
//*********?????????? *************** //
$f_in = $_POST['f_in'];
//*********switch????????????***********//
switch($f_in){
case 0;
echo "<h3>????????????</h3>";
break;

case 1;
echo "<h3>??????</h3>";
$city = "1";//??????$city???
break;

case 2;
echo "<h3>????</h3>";
$city = "2";
break;

case 3;
echo "<h3>?????????</h3>";
$city = "3";
break;

}

//*********????????????******************//

$fname = 'flight_time002_99.txt';
$data1 = @fopen($fname,'r') or exit('???????????????</body></html>');
echo "<table border=\"1\" cellpadding=\"5\">\n";
echo "<h4>???????</h4>\n";
echo "<tr><th>??</th><th>???</th><th>???</th><th>????</th><th>????</th><th>????</th></tr>\n";

while(!feof($data1)){ //eof??????????
$string = trim(fgets($data1));//????????????????????
$dt = strtok($string,','); //?????????????????

if($dt == $city){
echo "<tr>\n";

while($dt){ //$dt??????????
echo "<td>".$dt. "</td>\n";
$dt = strtok(",");
}
echo "</tr>\n";

}
}
fclose($data1);
?>

</body>