Solución:
Cree una constante con ruta absoluta a la raíz usando define en ShowInfo.php:
define('ROOTPATH', __DIR__);
O PHP <= 5.3
define('ROOTPATH', dirname(__FILE__));
Ahora úsalo:
if (file_exists(ROOTPATH.'/Texts/MyInfo.txt'))
// ...
O usa el DOCUMENT_ROOT definido en $_SERVER:
if (file_exists($_SERVER['DOCUMENT_ROOT'].'/Texts/MyInfo.txt'))
// ...
En PHP hay una variable global que contiene varios detalles relacionados con el servidor. Se llama $ _SERVER. Contiene también la raíz:
$_SERVER['DOCUMENT_ROOT']
El único problema es que las entradas en esta variable las proporciona el servidor web y no hay garantía de que todos los servidores web las ofrezcan.
Siempre es mejor iniciar cualquier proyecto PHP personalizado con un archivo de arranque en el que defina las rutas más utilizadas como constantes, según los valores extraídos de $_SERVER. Debería hacer que la migración de sus proyectos o partes de su proyecto a otro servidor oa otro directorio en el servidor sea mucho más fácil.
Así es como defino mis rutas raíz:
define("LOCAL_PATH_ROOT", $_SERVER["DOCUMENT_ROOT"]);
define("HTTP_PATH_ROOT", isset($_SERVER["HTTP_HOST"]) ? $_SERVER["HTTP_HOST"] : (isset($_SERVER["SERVER_NAME"]) ? $_SERVER["SERVER_NAME"] : '_UNKNOWN_'));
El camino LOCAL_PATH_ROOT es la raíz del documento. El camino HTTP_PATH_ROOT es el equivalente al acceder a la misma ruta a través de HTTP.
En ese momento, la conversión de cualquier ruta local a una ruta HTTP se puede hacer con el siguiente código:
str_replace(LOCAL_PATH_ROOT, RELATIVE_PATH_ROOT, $my_path)
Si desea garantizar la compatibilidad con servidores basados en Windows, también deberá reemplazar el separador de directorios con un separador de URL:
str_replace(LOCAL_PATH_ROOT, RELATIVE_PATH_ROOT, str_replace(DIRECTORY_SEPARATOR, '/', $my_path))
Aquí está el código de arranque completo que estoy usando para el modelo de PHP PowerTools:
defined('LOCAL_PATH_BOOTSTRAP') || define("LOCAL_PATH_BOOTSTRAP", __DIR__);
// -----------------------------------------------------------------------
// DEFINE SEPERATOR ALIASES
// -----------------------------------------------------------------------
define("URL_SEPARATOR", '/');
define("DS", DIRECTORY_SEPARATOR);
define("PS", PATH_SEPARATOR);
define("US", URL_SEPARATOR);
// -----------------------------------------------------------------------
// DEFINE ROOT PATHS
// -----------------------------------------------------------------------
define("RELATIVE_PATH_ROOT", '');
define("LOCAL_PATH_ROOT", $_SERVER["DOCUMENT_ROOT"]);
define("HTTP_PATH_ROOT",
isset($_SERVER["HTTP_HOST"]) ?
$_SERVER["HTTP_HOST"] : (
isset($_SERVER["SERVER_NAME"]) ?
$_SERVER["SERVER_NAME"] : '_UNKNOWN_'));
// -----------------------------------------------------------------------
// DEFINE RELATIVE PATHS
// -----------------------------------------------------------------------
define("RELATIVE_PATH_BASE",
str_replace(LOCAL_PATH_ROOT, RELATIVE_PATH_ROOT, getcwd()));
define("RELATIVE_PATH_APP", dirname(RELATIVE_PATH_BASE));
define("RELATIVE_PATH_LIBRARY", RELATIVE_PATH_APP . DS . 'vendor');
define("RELATIVE_PATH_HELPERS", RELATIVE_PATH_BASE);
define("RELATIVE_PATH_TEMPLATE", RELATIVE_PATH_BASE . DS . 'templates');
define("RELATIVE_PATH_CONFIG", RELATIVE_PATH_BASE . DS . 'config');
define("RELATIVE_PATH_PAGES", RELATIVE_PATH_BASE . DS . 'pages');
define("RELATIVE_PATH_ASSET", RELATIVE_PATH_BASE . DS . 'assets');
define("RELATIVE_PATH_ASSET_IMG", RELATIVE_PATH_ASSET . DS . 'img');
define("RELATIVE_PATH_ASSET_CSS", RELATIVE_PATH_ASSET . DS . 'css');
define("RELATIVE_PATH_ASSET_JS", RELATIVE_PATH_ASSET . DS . 'js');
// -----------------------------------------------------------------------
// DEFINE LOCAL PATHS
// -----------------------------------------------------------------------
define("LOCAL_PATH_BASE", LOCAL_PATH_ROOT . RELATIVE_PATH_BASE);
define("LOCAL_PATH_APP", LOCAL_PATH_ROOT . RELATIVE_PATH_APP);
define("LOCAL_PATH_LIBRARY", LOCAL_PATH_ROOT . RELATIVE_PATH_LIBRARY);
define("LOCAL_PATH_HELPERS", LOCAL_PATH_ROOT . RELATIVE_PATH_HELPERS);
define("LOCAL_PATH_TEMPLATE", LOCAL_PATH_ROOT . RELATIVE_PATH_TEMPLATE);
define("LOCAL_PATH_CONFIG", LOCAL_PATH_ROOT . RELATIVE_PATH_CONFIG);
define("LOCAL_PATH_PAGES", LOCAL_PATH_ROOT . RELATIVE_PATH_PAGES);
define("LOCAL_PATH_ASSET", LOCAL_PATH_ROOT . RELATIVE_PATH_ASSET);
define("LOCAL_PATH_ASSET_IMG", LOCAL_PATH_ROOT . RELATIVE_PATH_ASSET_IMG);
define("LOCAL_PATH_ASSET_CSS", LOCAL_PATH_ROOT . RELATIVE_PATH_ASSET_CSS);
define("LOCAL_PATH_ASSET_JS", LOCAL_PATH_ROOT . RELATIVE_PATH_ASSET_JS);
// -----------------------------------------------------------------------
// DEFINE URL PATHS
// -----------------------------------------------------------------------
if (US === DS) // needed for compatibility with windows
define("HTTP_PATH_BASE", HTTP_PATH_ROOT . RELATIVE_PATH_BASE);
define("HTTP_PATH_APP", HTTP_PATH_ROOT . RELATIVE_PATH_APP);
define("HTTP_PATH_LIBRARY", false);
define("HTTP_PATH_HELPERS", false);
define("HTTP_PATH_TEMPLATE", false);
define("HTTP_PATH_CONFIG", false);
define("HTTP_PATH_PAGES", false);
define("HTTP_PATH_ASSET", HTTP_PATH_ROOT . RELATIVE_PATH_ASSET);
define("HTTP_PATH_ASSET_IMG", HTTP_PATH_ROOT . RELATIVE_PATH_ASSET_IMG);
define("HTTP_PATH_ASSET_CSS", HTTP_PATH_ROOT . RELATIVE_PATH_ASSET_CSS);
define("HTTP_PATH_ASSET_JS", HTTP_PATH_ROOT . RELATIVE_PATH_ASSET_JS);
else
define("HTTP_PATH_BASE", HTTP_PATH_ROOT .
str_replace(DS, US, RELATIVE_PATH_BASE));
define("HTTP_PATH_APP", HTTP_PATH_ROOT .
str_replace(DS, US, RELATIVE_PATH_APP));
define("HTTP_PATH_LIBRARY", false);
define("HTTP_PATH_HELPERS", false);
define("HTTP_PATH_TEMPLATE", false);
define("HTTP_PATH_CONFIG", false);
define("HTTP_PATH_PAGES", false);
define("HTTP_PATH_ASSET", HTTP_PATH_ROOT .
str_replace(DS, US, RELATIVE_PATH_ASSET));
define("HTTP_PATH_ASSET_IMG", HTTP_PATH_ROOT .
str_replace(DS, US, RELATIVE_PATH_ASSET_IMG));
define("HTTP_PATH_ASSET_CSS", HTTP_PATH_ROOT .
str_replace(DS, US, RELATIVE_PATH_ASSET_CSS));
define("HTTP_PATH_ASSET_JS", HTTP_PATH_ROOT .
str_replace(DS, US, RELATIVE_PATH_ASSET_JS));
// -----------------------------------------------------------------------
// DEFINE REQUEST PARAMETERS
// -----------------------------------------------------------------------
define("REQUEST_QUERY",
isset($_SERVER["QUERY_STRING"]) && $_SERVER["QUERY_STRING"] != '' ?
$_SERVER["QUERY_STRING"] : false);
define("REQUEST_METHOD",
isset($_SERVER["REQUEST_METHOD"]) ?
strtoupper($_SERVER["REQUEST_METHOD"]) : false);
define("REQUEST_STATUS",
isset($_SERVER["REDIRECT_STATUS"]) ?
$_SERVER["REDIRECT_STATUS"] : false);
define("REQUEST_PROTOCOL",
isset($_SERVER["HTTP_ORIGIN"]) ?
substr($_SERVER["HTTP_ORIGIN"], 0,
strpos($_SERVER["HTTP_ORIGIN"], '://') + 3) : 'http://');
define("REQUEST_PATH",
isset($_SERVER["REQUEST_URI"]) ?
str_replace(RELATIVE_PATH_BASE, '',
$_SERVER["REQUEST_URI"]) : '_UNKNOWN_');
define("REQUEST_PATH_STRIP_QUERY",
REQUEST_QUERY ?
str_replace('?' . REQUEST_QUERY, '', REQUEST_PATH) : REQUEST_PATH);
// -----------------------------------------------------------------------
// DEFINE SITE PARAMETERS
// -----------------------------------------------------------------------
define("PRODUCTION", false);
define("PAGE_PATH_DEFAULT", US . 'index');
define("PAGE_PATH",
(REQUEST_PATH_STRIP_QUERY === US) ?
PAGE_PATH_DEFAULT : REQUEST_PATH_STRIP_QUERY);
Si agrega el código anterior a su propio proyecto, generando todas las constantes de usuario en este punto (lo que puede hacer con get_defined_constants(true) debería dar un resultado parecido a esto:
array (
'LOCAL_PATH_BOOTSTRAP' => '/var/www/libraries/backend/Data/examples',
'URL_SEPARATOR' => '/',
'DS' => '/',
'PS' => ':',
'US' => '/',
'RELATIVE_PATH_ROOT' => '',
'LOCAL_PATH_ROOT' => '/var/www',
'HTTP_PATH_ROOT' => 'localhost:8888',
'RELATIVE_PATH_BASE' => '/libraries/backend/Data/examples',
'RELATIVE_PATH_APP' => '/libraries/backend/Data',
'RELATIVE_PATH_LIBRARY' => '/libraries/backend/Data/vendor',
'RELATIVE_PATH_HELPERS' => '/libraries/backend/Data/examples',
'RELATIVE_PATH_TEMPLATE' => '/libraries/backend/Data/examples/templates',
'RELATIVE_PATH_CONFIG' => '/libraries/backend/Data/examples/config',
'RELATIVE_PATH_PAGES' => '/libraries/backend/Data/examples/pages',
'RELATIVE_PATH_ASSET' => '/libraries/backend/Data/examples/assets',
'RELATIVE_PATH_ASSET_IMG' => '/libraries/backend/Data/examples/assets/img',
'RELATIVE_PATH_ASSET_CSS' => '/libraries/backend/Data/examples/assets/css',
'RELATIVE_PATH_ASSET_JS' => '/libraries/backend/Data/examples/assets/js',
'LOCAL_PATH_BASE' => '/var/www/libraries/backend/Data/examples',
'LOCAL_PATH_APP' => '/var/www/libraries/backend/Data',
'LOCAL_PATH_LIBRARY' => '/var/www/libraries/backend/Data/vendor',
'LOCAL_PATH_HELPERS' => '/var/www/libraries/backend/Data/examples',
'LOCAL_PATH_TEMPLATE' => '/var/www/libraries/backend/Data/examples/templates',
'LOCAL_PATH_CONFIG' => '/var/www/libraries/backend/Data/examples/config',
'LOCAL_PATH_PAGES' => '/var/www/libraries/backend/Data/examples/pages',
'LOCAL_PATH_ASSET' => '/var/www/libraries/backend/Data/examples/assets',
'LOCAL_PATH_ASSET_IMG' => '/var/www/libraries/backend/Data/examples/assets/img',
'LOCAL_PATH_ASSET_CSS' => '/var/www/libraries/backend/Data/examples/assets/css',
'LOCAL_PATH_ASSET_JS' => '/var/www/libraries/backend/Data/examples/assets/js',
'HTTP_PATH_BASE' => 'localhost:8888/libraries/backend/Data/examples',
'HTTP_PATH_APP' => 'localhost:8888/libraries/backend/Data',
'HTTP_PATH_LIBRARY' => false,
'HTTP_PATH_HELPERS' => false,
'HTTP_PATH_TEMPLATE' => false,
'HTTP_PATH_CONFIG' => false,
'HTTP_PATH_PAGES' => false,
'HTTP_PATH_ASSET' => 'localhost:8888/libraries/backend/Data/examples/assets',
'HTTP_PATH_ASSET_IMG' => 'localhost:8888/libraries/backend/Data/examples/assets/img',
'HTTP_PATH_ASSET_CSS' => 'localhost:8888/libraries/backend/Data/examples/assets/css',
'HTTP_PATH_ASSET_JS' => 'localhost:8888/libraries/backend/Data/examples/assets/js',
'REQUEST_QUERY' => false,
'REQUEST_METHOD' => 'GET',
'REQUEST_STATUS' => false,
'REQUEST_PROTOCOL' => 'http://',
'REQUEST_PATH' => '/',
'REQUEST_PATH_STRIP_QUERY' => '/',
'PRODUCTION' => false,
'PAGE_PATH_DEFAULT' => '/index',
'PAGE_PATH' => '/index',
)
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