Comment définir un chemin absolu inclus dans PHP

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define( 'ROOT_DIR', dirname(__FILE__) ); 

require_once( ROOT_DIR.'/include/functions.php' ); 

86

$root = $_SERVER['DOCUMENT_ROOT']; include($root."/path/to/file.php"); 

70

ini_set("include_path", "/your_include_path:".ini_get("include_path")); 

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include('/includes/header.php');  

 /home/username/public_html <- absolute path   public_html <- relative path   ./public_html <- same as the path above   ../username/public_html <- another relative path   

require_once(__DIR__ . '/Factories/ViewFactory.php'); 

56

C:\wamp\www\ 

<?php if(!defined('MY_ABS_PATH')) define('MY_ABS_PATH',$_SERVER['DOCUMENT_ROOT'].'MyProyect/')