How to grab an image file in codeigniter [duplicate] - php

I'm making an intranet for a post-sale customer service entreprise. Employee need to be able to upload img files to the intranet's server and i need to store them in a directory with is BEFORE www (the website's root directory).
Doing this using php is pretty easy but how to include these imgs on the website once they're uploaded ?
I tried this code
<img src="../img/img.png"/>
This is not working because i can't send a file if it is OUTSIDE the server's www directory ...
Is there any proper way to do that ?
Current treeview :
server root directory
|www
|(all server files)
|img
|(all img files)
(the server's index.php is located in www and the files are in img)

You cannot directly access any file outside your web directory. As your question includes the tag PHP as well, I assume you may want to use it.
What you can do is the following:
Inside your www directory, create a "image.php" file, with a similar content to:
<?php
header('Content-Type: image/png');
readfile("../img/" . $_GET['img']);
?>
And call your images with
<img src="image.php?img=myimage.png" />
Please be aware that your PHP file shouldn't be that simple :) As you may want to address multiple image formats (and providing the correct header for them), checking for malicious file path/inclusions (you don't want to use $_GET without validating/sanitizing the input), extra caching etc. etc. etc.
But this should give you an idea on how you can target your issue.

It depends on what you are trying to accomplish and how.
With "simple" html commands it is as you found out. You can't go to a directory outside of the www root.
(for xampp applications on C for exmple it is most of the time c:\xampp\htdocs).
If you are ok with using serverside commands to accomplish what you want to achieve then you could use php to do a workaround, by reading the appropriate files in via PHP.
For example if your file is named "myimg.gif" and lies in "c:\pics"
<img SRC="data:image/gif;base64,<?php echo base64_encode(file_get_contents("c:\pics\myimg.gif"));?>">
With that you are reading the contents of the file and writing it directly into the img tag.
Be aware that you need to change image/gif to what you really need there.

You can't directly access file outside/above your root directory (www or public_html).
You can create virtual directory in Apache server configuration. Google "apache virtual directory" for more information.
Virtual directory configuration example:
<IfModule alias_module>
Alias /uploaded_images/ "/home/someuser/somewhere"
<Directory "/home/someuser/somewhere">
Allow from all
</Directory>
</IfModule>
uploaded_images directory will be available from web like normal directory in www directory. You can copy files from there to another location (kind of buffering).
You can also open/copy that file by ftp from php level without changing anything in apache, but this may be really slow (use it only if you can't control apache config, virtual directory is much better).
php.net: FTP

I Agree with #kamil's idea about creating a virtual directory. However if you want to go the php route, I wrote some code that open's images in a directory before WWW and copies them to the www/images folder.
<?php
$imagepath = "../images/";
define('IMGPATH', realpath($imagepath).DIRECTORY_SEPARATOR);
$cachewwwimg = "images/";
$imagename = 'image.jpg';
copy(IMGPATH.$imagename, $cachewwwimg.$imagename)
?>
<img src="<?php echo $cacheimg.$imagename;?>"/>

I solved this by simply creating a symbolic link pointing to the global physical folder on my hosting. I didn't have root access, so I created a simple PHP file, calling it symbolic_link.php, that i put in the root of my website and that creates the symbolic link for me. Here it is:
<?php
$target = '/home/<user>/images/'; // hosting physical directory
$link = 'images'; // symbolic link inside root of web site
unlink($link);
symlink($target, $link);
After the creation of the symbolic link, I deleted the file.
This is the hosting directory structure:
/home/<user> // hosting root
|
+--/images // hosting global dir
| |
| +--/logo.png // global image
|
+--/www.website.com // hosting website dir
|
+--/images // symbolic link
Now you can use the image as if it were in your website folder:
<img src="https://www.website.com/images/logo.png" alt="...">

Related

How do I upload my localhost site to an online server?

Now I know that you have to FTP the files to the server but I'm more confused about the directory structure... Let me explain..
Here is the localhost directory structure
C:/wamp/www/store/{Here is the entire project}
Here is the online server directory structure
htdocs/{The project will go here}
My problem
As you can see, my root directory for the project is "/store" in the localhost environment. So I used relative path in my code to refer to the root directory which is the "/store/". You can see that I use this type of referencing throughout the project.
print "<div class='globalerror'>
<div class='globalerror-content'>
<h5>Uh-oh! There's an error</h5>
<p>You must go back</p><br/>
<p class='back'><a href='/store/'>Go back</a></p>
</div>
</div>";
If I upload the files to "htdocs" It will give me an error, which is, Directory not found. If I create a folder named "store" inside the htdocs folder... I'd have to go www.mydomain.com/store (which I don't want)
So, did I messed up pretty badly? Or is there a simple fix? Or do I have to edit all the "/store" to "/" in my project?
Simple, You have to change path of directory. Create new directory and give the path of that directory. Because there is no directory in your server.
Currently you can do modify the .htaccess file and can manage urls, change from store to root
Ref 1
Ref 2
Ref 3
The best option is to set the base url in single variable and use the variable around the project.
You can consider the below option, If you are willing to edit the all the links.
settings.php
/*
Local Server = http://localhost/store/
Online Server = http://www.example.com/
*/
$WEBSITE_URL = 'http://www.example.com/';
The php files
Find & Replace /store/ with $WEBSITE_URL , check the single/double quotes
require_once('settings.php');
print "<div class='globalerror'>
<div class='globalerror-content'>
<h5>Uh-oh! There's an error</h5>
<p>You must go back</p><br/>
<p class='back'><a href='".$WEBSITE_URL."'>Go back</a></p>
</div>
</div>";
Have you try URL rewriting with .htacess ?
URL rewriting with PHP
If it possible you could change the Folder inside Apache configuration( i presume you use Apache)
Using a directory in VirtualHost ServerName

Find filepath to public_html directory or it's equivalent using PHP

I'm creating a .php file that will be uploaded to the root directory of a server. I need that .php file to then figure out the path to the public_html folder or it's equivalent.
I need to do this because I want my .php file to be able to be uploaded to the root and used on any hosting account. Because many hosting companies use different file paths to the public_html folder or even call it something different, I'm trying to figure out how to detect it.
Preferable there is a server variable or easy test to do this. If not, the public_html folder will always contain a particular file so maybe I could search for this particular file and get the path that way. I'm just worried about a filename search being heavy on memory.
The .php file that is being executed is located inside the ROOT directory and needs to locate the public_html folder.
Like this: /home/user/file.php
needs to detect
/home/user/public_html/ or /home/user/var/www/ or /home/user/website.com/html/ etc.
The challenge with this is that a server can have very many public_html's so outside of the context of a request there is no real way to find out what that is.
One thing that you might be able to do to get this information from a php script (if you know the url to get to the host) is to create a php file called docroot.php that looks like this.
<?php
if ($_SERVER["REMOTE_ADDR"] == '127.0.0.1'){
echo $_SERVER["DOCUMENT_ROOT"];
}
Then within your file.php your would do something like
$docRoot = trim(file_get_contents("http://www.mydomain.com/docroot.php"));
This makes the assumption that the server can resolve to itself via the local interface by name.
I found this website which provided me with the only good solution I have found after scouring the web...
$root = preg_replace("!${_SERVER['SCRIPT_NAME']}$!", "", $_SERVER['SCRIPT_FILENAME']);
The way this works is by getting the full path of the file and then removing the relative path of the file from the full path.

Include php files when they are in different folders

Most of my website is in my root directory. And In that directory there is "css", "functions", "images" folder. Everything works fine when I include php files within index.php or any other root file. It includes it fine and executes it fine.
But problem occurres when I made folder "blog". So this is totally new and separate root folder with CMS and its own "root" files. And I try to include css from main root directory or some php files from "functions" folder in main root directory, Everything breaks down. I know I have to include it as ../functions/myfile.com. But this files includes some other files so it just wont work properly and won't be able to include other files properly.
Is there any idea how to fix this problem?
You can get to the root from within each site using $_SERVER['DOCUMENT_ROOT']. For testing ONLY you can echo out the path to make sure it's working, if you do it the right way. You NEVER want to show the local server paths for things like includes and requires.
Site 1
echo $_SERVER['DOCUMENT_ROOT']; //should be '/main_web_folder/';
Includes under site one would be at:
echo $_SERVER['DOCUMENT_ROOT'].'/includes/'; // should be '/main_web_folder/includes/';
Site 2
echo $_SERVER['DOCUMENT_ROOT']; //should be '/main_web_folder/blog/';
The actual code to access includes from site1 inside of site2 you would say:
include($_SERVER['DOCUMENT_ROOT'].'/../includes/file_from_site_1.php');
It will only use the relative path of the file executing the query if you try to access it by excluding the document root and the root slash:
//(not as fool-proof or non-platform specific)
include('../includes/file_from_site_1.php');
Included paths have no place in code on the front end (live) of the site anywhere, and should be secured and used in production environments only.
Additionally for URLs on the site itself you can make them relative to the domain. Browsers will automatically fill in the rest because they know which page they are looking at. So instead of:
<a href='http://www.__domain__name__here__.com/contact/'>Contact</a>
You should use:
<a href='/contact/'>Contact</a>
For good SEO you'll want to make sure that the URLs for the blog do not exist in the other domain, otherwise it may be marked as a duplicate site. With that being said you might also want to add a line to your robots.txt file for ONLY site1:
User-agent: *
Disallow: /blog/
Other possibilities:
Look up your IP address and include this snippet of code:
function is_dev(){
//use the external IP from Google.
//If you're hosting locally it's 127.0.01 unless you've changed it.
$ip_address='xxx.xxx.xxx.xxx';
if ($_SERVER['REMOTE_ADDR']==$ip_address){
return true;
} else {
return false;
}
}
if(is_dev()){
echo $_SERVER['DOCUMENT_ROOT'];
}
Remember if your ISP changes your IP, as in you have a DCHP Dynamic IP, you'll need to change the IP in that file to see the results. I would put that file in an include, then require it on pages for debugging.
If you're okay with modern methods like using the browser console log you could do this instead and view it in the browser's debugging interface:
if(is_dev()){
echo "<script>".PHP_EOL;
echo "console.log('".$_SERVER['DOCUMENT_ROOT']."');".PHP_EOL;
echo "</script>".PHP_EOL;
}
If I understand you correctly, You have two folders, one houses your php script that you want to include into a file that is in another folder?
If this is the case, you just have to follow the trail the right way.
Let's assume your folders are set up like this:
root
includes
php_scripts
script.php
blog
content
index.php
If this is the proposed folder structure, and you are trying to include the "Script.php" file into your "index.php" folder, you need to include it this way:
include("../../../includes/php_scripts/script.php");
The way I do it is visual. I put my mouse pointer on the index.php (looking at the file structure), then every time I go UP a folder, I type another "../" Then you have to make sure you go UP the folder structure ABOVE the folders that you want to start going DOWN into. After that, it's just normal folder hierarchy.
i had the same issue and found a code on https://css-tricks.com/php-include-from-root/ that fixed it
<?php
$path = $_SERVER['DOCUMENT_ROOT'];
$path .= "/common/header.php";
include_once($path);
?>
None of the above answers fixed this issue for me.
I did it as following (Laravel with Ubuntu server):
<?php
$footerFile = '/var/www/website/main/resources/views/emails/elements/emailfooter.blade.php';
include($footerFile);
?>
Try to never use relative paths. Use a generic include where you assign the DocumentRoot server variable to a global variable, and construct absolute paths from there. Alternatively, for larger projects, consider implementing a PSR-0 SPL autoloader.

Access a file which is located before / outside the server root directory?

I'm making an intranet for a post-sale customer service entreprise. Employee need to be able to upload img files to the intranet's server and i need to store them in a directory with is BEFORE www (the website's root directory).
Doing this using php is pretty easy but how to include these imgs on the website once they're uploaded ?
I tried this code
<img src="../img/img.png"/>
This is not working because i can't send a file if it is OUTSIDE the server's www directory ...
Is there any proper way to do that ?
Current treeview :
server root directory
|www
|(all server files)
|img
|(all img files)
(the server's index.php is located in www and the files are in img)
You cannot directly access any file outside your web directory. As your question includes the tag PHP as well, I assume you may want to use it.
What you can do is the following:
Inside your www directory, create a "image.php" file, with a similar content to:
<?php
header('Content-Type: image/png');
readfile("../img/" . $_GET['img']);
?>
And call your images with
<img src="image.php?img=myimage.png" />
Please be aware that your PHP file shouldn't be that simple :) As you may want to address multiple image formats (and providing the correct header for them), checking for malicious file path/inclusions (you don't want to use $_GET without validating/sanitizing the input), extra caching etc. etc. etc.
But this should give you an idea on how you can target your issue.
It depends on what you are trying to accomplish and how.
With "simple" html commands it is as you found out. You can't go to a directory outside of the www root.
(for xampp applications on C for exmple it is most of the time c:\xampp\htdocs).
If you are ok with using serverside commands to accomplish what you want to achieve then you could use php to do a workaround, by reading the appropriate files in via PHP.
For example if your file is named "myimg.gif" and lies in "c:\pics"
<img SRC="data:image/gif;base64,<?php echo base64_encode(file_get_contents("c:\pics\myimg.gif"));?>">
With that you are reading the contents of the file and writing it directly into the img tag.
Be aware that you need to change image/gif to what you really need there.
You can't directly access file outside/above your root directory (www or public_html).
You can create virtual directory in Apache server configuration. Google "apache virtual directory" for more information.
Virtual directory configuration example:
<IfModule alias_module>
Alias /uploaded_images/ "/home/someuser/somewhere"
<Directory "/home/someuser/somewhere">
Allow from all
</Directory>
</IfModule>
uploaded_images directory will be available from web like normal directory in www directory. You can copy files from there to another location (kind of buffering).
You can also open/copy that file by ftp from php level without changing anything in apache, but this may be really slow (use it only if you can't control apache config, virtual directory is much better).
php.net: FTP
I Agree with #kamil's idea about creating a virtual directory. However if you want to go the php route, I wrote some code that open's images in a directory before WWW and copies them to the www/images folder.
<?php
$imagepath = "../images/";
define('IMGPATH', realpath($imagepath).DIRECTORY_SEPARATOR);
$cachewwwimg = "images/";
$imagename = 'image.jpg';
copy(IMGPATH.$imagename, $cachewwwimg.$imagename)
?>
<img src="<?php echo $cacheimg.$imagename;?>"/>
I solved this by simply creating a symbolic link pointing to the global physical folder on my hosting. I didn't have root access, so I created a simple PHP file, calling it symbolic_link.php, that i put in the root of my website and that creates the symbolic link for me. Here it is:
<?php
$target = '/home/<user>/images/'; // hosting physical directory
$link = 'images'; // symbolic link inside root of web site
unlink($link);
symlink($target, $link);
After the creation of the symbolic link, I deleted the file.
This is the hosting directory structure:
/home/<user> // hosting root
|
+--/images // hosting global dir
| |
| +--/logo.png // global image
|
+--/www.website.com // hosting website dir
|
+--/images // symbolic link
Now you can use the image as if it were in your website folder:
<img src="https://www.website.com/images/logo.png" alt="...">

Acessing image folder outside wamp folder

i have my web folder in c:/wamp/www/ which is the default webroot for wamp. Then i have a folder image in c:/image/ that contains images been processed by another application which i wont like to relocate. I want to be able to load up an image with its file name from c:/image/
e.g. img src = "c:/image/FA12.jpg"
within my PHP scripts. I really Need Help on this Please. Thanks for your support.
If you need to read a file into php use "c:\image\FA12.jpg". You may also create a link "file://c\image\FA12.jpg". There's no way to create a relative path, since it is outside root dir.
As per my knowledge it is better to create a folder of your images under your localhost or server ('var/www/images') to have a proper relative URL to that images.
Url's like c:\image\fa12.jpg can create problems when you make your product online. Other wise you can do provide static urls as kirilloid suggest or you can copy that images to some proper folder in your localhost sever with use of php function "copy" and use that folder as a reference. avoid static url's if possible.:)
as i have linux system now i tested below code locally. create one file test.php under /www and put below code in it and run file in browser. see if this can be your solution
<?php $link = $_SERVER['DOCUMENT_ROOT'];
$domain = strstr($link, '/www');
echo $domain;//this will output /www
$root = strstr($link, '/www', true);
echo "<br>".$root;//this will output /var
?>
You can try this by putting "/wamp/www" instead of "/www" in above code and you will get c:/ (perhaps) in $root and then appeng folder name images and path accordingly to $root.
May this will help you

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