f_open没有创建文件？

Question

我开始使用Windows记事本文件保存该人员的“feed”的社交网络。但是，在我的帐户保存页面上，我的PHP似乎不起作用。它不会保存文件。很抱歉，如果我是“小白”

这里是我的代码：

<?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>"; 

?> 

请，没有严厉的回应。

Answer 1

您不允许将文件写入服务器的根目录（/）。选择或创建一个目录，你做有写权限，并用它来代替。