How to configure Twig to find templates? - php

Question

I am using Twig with Slim, and am getting the following error:
Warning: file_get_contents(application/templates/config.html): failed
to open stream: No such file or directory in
/var/www/testing/vendor/twig/twig/lib/Twig/Loader/Filesystem.php on
line 131
The script below is located in /var/www/testing/html/index.php, and I have verified that the template exists at /var/www/testing/application/templates/config.html.
$container['view'] = function ($c) {
$view = new \Slim\Views\Twig('../application/templates', [
//'cache' => 'path/to/cache' // See auto_reload option
'debug' => true,
'strict_variables'=> true
]);
$view->addExtension(new \Slim\Views\TwigExtension(
$c['router'],
$c['request']->getUri()
));
$view->addExtension(new \Twig_Extension_Debug());
return $view;
};
$app->get('/config', function (Request $request, Response $response) {
return $this->view->render($response, 'config.html',[]);
});
Line 131 is shown below and returns config.html.
public function getSource($name)
{
return file_get_contents($this->findTemplate($name));
}
I have used this same script in another similar server (however, maybe different PHP version and php.ini and httpd.conf may be different), and do not have this issue?
Obviously, I have configured something incorrectly. How should I configure Twig to find templates?

Answer 1

Yes, that's a problem (bug?) I've encountered last week, and #geggleto solved it.
This is because of Twig update from v1.26.1 from 1.24.2.
This is how Twig grabbed in 1.24.2 (method Twig_Loader_Filesystem::normalizeName):
protected function normalizeName($name)
{
return preg_replace('#/{2,}#', '/', str_replace('\\', '/', (string) $name));
}
And this is how it grabs file in 1.26.1:
private function normalizePath($path)
{
$parts = explode('/', str_replace('\\', '/', $path));
$isPhar = strpos($path, 'phar://') === 0;
$new = array();
foreach ($parts as $i => $part) {
if ('..' === $part) {
array_pop($new);
} elseif ('.' !== $part && ('' !== $part || 0 === $i || $isPhar && $i < 3)) {
$new[] = $part;
}
}
return implode('/', $new);
}
See that array_pop($new); line? That's the one that ruins use of relative path.
#geggleto suggested to use absolute path instead of relative, and it worked:
\Slim\Views\Twig(__DIR__.'/../application/templates')
To sum up: this happens because of Twig new version.