In case you're running a version of PHP that doesn't have this function...
if (!function_exists('stream_resolve_include_path')) {
/**
* Resolve filename against the include path.
*
* stream_resolve_include_path was introduced in PHP 5.3.2. This is kinda a PHP_Compat layer for those not using that version.
*
* @param Integer $length
* @return String
* @access public
*/
function stream_resolve_include_path($filename)
{
$paths = PATH_SEPARATOR == ':' ?
preg_split('#(?<!phar):#', get_include_path()) :
explode(PATH_SEPARATOR, get_include_path());
foreach ($paths as $prefix) {
$ds = substr($prefix, -1) == DIRECTORY_SEPARATOR ? '' : DIRECTORY_SEPARATOR;
$file = $prefix . $ds . $filename;
if (file_exists($file)) {
return $file;
}
}
return false;
}
}
stream_resolve_include_path
(PHP 5 >= 5.3.2, PHP 7, PHP 8)
stream_resolve_include_path — Résout un nom de fichier suivant les règles du chemin d'inclusion
Description
Résout le nom de fichier filename en utilisant
le chemin d'inclusion, en utilisant les mêmes règles que les fonctions
fopen()/include.
Liste de paramètres
-
filename -
Le nom de fichier à résoudre.
Valeurs de retour
Retourne une chaîne de caractères contenant le nom de fichier absolu résolu,
ou false si une erreur survient.
Exemples
Exemple #1 Exemple avec stream_resolve_include_path()
Exemple simple d'utilisation.
<?php
var_dump(stream_resolve_include_path("test.php"));
?>Résultat de l'exemple ci-dessus est similaire à :
string(22) "/var/www/html/test.php"
add a note
User Contributed Notes 5 notes
zelnaga at gmail dot com ¶
10 years ago
tambet dot matiisen at gmail dot com ¶
11 years ago
stream_resolve_include_path() seems to cache it's output. After I renamed a file, I had to restart Apache for stream_resolve_include_path() to not return non-existing file name. This was on Windows.
kawewong at gmail dot com ¶
3 years ago
In some case like this, you can't use `realpath()` or `file_exists()` without resolve its path.
Example:
file.php
subfolder/
..|- included.php
..|- subfolder/
.........|- another-included.php
file.php contents:
```
<?php
var_dump(file_exists('subfolder/included.php'));// true
include 'subfolder/included.php';
?>
```
subfolder/included.php contents:
```
<?php
var_dump(file_exists('subfolder/another-included.php'));// false but the file is really exists.
var_dump(file_exists(stream_resolve_include_path('subfolder/another-included.php')));// with `stream_resolve_include_path()` function, it returns true now.
include 'subfolder/another-included.php';// working fine, no errors.
?>
```
subfolder/subfolder/another-included.php contents:
```
<?php
echo 'Hello world';
?>
```
sebastian dot krebs at kingcrunch dot de ¶
13 years ago
It really behaves like `include` and will only resolve the filename against the include-path, if the path is relative. It makes not much sense to resolve already absolute pathnames anyway.
kontakt at victorjonsson dot se ¶
12 years ago
This seems to be a great alternative to file_exists.
if( file_exists(__DIR__.'/som-file.php') )
Goes way slower than:
if( stream_resolve_inlcude_path(__DIR__.'/som-file.php') !== false)
