你的意思是做這樣的事情?
$filename = '/results/' . $_POST['username'] . '/' . $_POST['pollname'] . '/time.txt';
if (isset($_POST["submitwrite"])) {
$handle = fopen($filename,"w+");
// etc...
還是我不理解你?
編輯
爲了解決BalusC指出的問題,這是一個比較完整的解決方案。
它確保$_POST['username']
和$_POST['pollname']
值有效,因此它們不會創建無效或可能有害的$filename
。
<?php
$basedir = '/results';
$basename = 'time.txt';
// Get user and poll names
$username = $_POST['username'];
$pollname = $_POST['pollname'];
// Counteract the old magic_qutoes feature, if needed.
if(get_magic_quotes_gpc()) {
$username = stripslashes($username);
$pollname = stripslashes($pollname);
}
// Validate user and poll names.
$regexp = '/^[\w\d\_\-\. \']+$/iu';
if(!preg_match($regexp, $username) || !preg_match($regexp, $pollname)) {
echo 'Username or pollname is invalid. Aborting!';
}
else {
// Compile the complete file name
$filename = $basedir . '/' . $username . '/' . $pollname . '/' . $basename;
// Write to the file
if (isset($_POST["submitwrite"])) {
$handle = fopen($filename,"w+");
if ($handle) {
fwrite($handle, "Dan"."¬".$_POST["username"]."¬".$_POST["pollname"]."¬".$_POST["ans1"]."¬".$_POST["ans2"]."¬".$_POST["ans3"]."¬".time());
fclose($handle);
}
}
}
?>
那麼問題是什麼? – notnoop 2010-01-01 21:29:11