如何将相关目录中的图像包含到php中的根目录中

Question

|root 
| subdir 1 
|   subdir 2
|     subdir 3
|       subdir 4
|         subdir 5 
|              myphp.php 

|relativeroot2(images directory)
   img1.jpg

In the above myphp.php script Iam trying to include the (img1.jpg)from relativeroot2 dir.Iam not able to do that how can i include it . when i say $_SERVER['DOCUMENT_ROOT'] iam returned with value as "root" from ther how can include it <img src ="<?php echo $_SERVER['DOCUMENT_ROOT']?>"/relativeroot2/img1.jpg">

Answer 1

Assuming this is how your web folder looks

 root
  /includes
  /relativeroot1
  /relativeroot2

Create a file named path.php in the includes folder above and insert the following

<?php

if (session_id() == '') {
    session_start(); /* if not already done */
}

/* replace value below with appropriate header to root distance of this include file */

$header_to_root_distance = 1;
$header_dir = dirname(__FILE__);

$root_distance = substr_count($header_dir, DIRECTORY_SEPARATOR) - $header_to_root_distance;

  if($_SERVER['SERVER_ADDR']){
     $include_distance = substr_count(dirname($_SERVER['SCRIPT_FILENAME']), "/");
  }else{
     $include_distance = substr_count(dirname($_SERVER['SCRIPT_FILENAME']), "\\");
  }

$r_path = str_repeat('../', $include_distance - $root_distance);
$_SESSION['r_path'] = $r_path;

 /* Note - $r_path holds your relative url starting from the root folder */

?>

Create a .htaccess file in the root folder above and insert the following

<IfModule php5_module>
    php_value include_path "includes/"
</IfModule>

Now open the file you want a relative path e.g your myphp.php script and insert the following at the top

<?php require 'path.php' ?>

So to request for any relative path from any file in your case. Just do the following

  <img src="<?php echo $r_path.'relativeroot2/img.jpg' ?>" title="My Image" />