在PHP中使用include函数

Question

So, i am working on an eCommerce style of website and i own a host/domain. From my understanding, i should place my PHP files in another location than public_html(for security purposes), the location of index.html being in /home/user/public_html. I want to put my PHP files in the php folder. I have tried using:

include("home/user/php/file.php") or include("../php/file.php") .

I have enabled the use of these commands in the ini file and i also tried to set permissions to the folders(read/write/execute).One thing that was working is to set a subdomain with its "root" folder to the php folder, but i guess that defeats the purpose of having the files somewhere else on the server, especially because i was using an object to place my php like so:

<object class="php-script" data="database.php"></object>

and under my java scripts i put :

<?php
    include("/home/user/php/database.php");
?>

Thanks in advance for helping me.

Answer 1

Just try the following code. see what it outputs. basically u need to use: $_SERVER['DOCUMENT_ROOT'] to navigate to file instead typing path yourself.

//to get site url 
echo $site_url = "http://" . $_SERVER['SERVER_NAME'] . dirname($_SERVER['PHP_SELF']); 

//to the folder
echo $dir = $_SERVER['DOCUMENT_ROOT'].'/user/php/';

if (file_exists($dir) == false) {
echo  "Directory $dir not found!";
} else {
echo "directory found and we are ready to proceed.";
}

let me know your response, i ll help u further.

Answer 2

Normally using relative paths with include or require means using relative paths starting from the directory your first called script of an URL call is located.

Example:

application
    src
        database.php
        somescript.php
    public (document root)
        index.php
        news.php

http://example.com/index.php

public/index.php

<?php
include '../src/database.php'

This should be easy to understand.

http://example.com/news.php

public/news.php

<?php
include '../src/somescript.php';

src/somescript.php

<?php
include '../src/database.php';

So take care of the include in somescript.php . It doesn't matter that it is in the src folder. An include like include 'database.php' will fail, because it's the path of the news.php which matters.

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Edit (2018-04-04)

I forgot to mention. Consider to use require() / require_once() instead of include() / include_once() .

Difference between require, include, require_once and include_once?