f_open沒有創建文件？

Question

我開始使用Windows記事本文件保存該人員的「feed」的社交網絡。但是，在我的帳戶保存頁面上，我的PHP似乎不起作用。它不會保存文件。很抱歉，如果我是「小白」

這裏是我的代碼：

<?php 
$u = $_POST['user']; 
$n = $_POST['name']; 
$p = $_POST['password']; 
$e = $_POST['email']; 
$f = $_POST['email'] . ".txt"; 

$con=mysqli_connect("localhost","root","password","account"); 
mysqli_query($con,"INSERT INTO socialnet (name,user,password,file,email) VALUES ($n,$u,$p,$f,$e)"); 

$o = fopen('/' . $f,'c'); 

fwrite($o,"Hi. I just joined. Wait a few until I get my feed going"); 
fclose($o); 
echo "<b>Your account has been saved. Now, please click the link at the top of the page to go back and log in.</b>"; 

?> 

請，沒有嚴厲的迴應。

Answer 1

您不允許將文件寫入服務器的根目錄（/）。選擇或創建一個目錄，你做有寫權限，並用它來代替。