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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class MY_Router extends CI_Router {
/**
* This version of _parse_routes acts the same as the older version
* except that it now allows for callbacks to be used as an alternative
* to the original route styles. Backreferences are set to the
* parameters of the callback. Note: Remember to give default values to
* the parameters that can be empty.
*/
function _parse_routes()
{
// Turn the segment array into a URI string
$uri = implode('/', $this->uri->segments);
// Is there a literal match? If so we're done
if (isset($this->routes[$uri]))
{
return $this->_set_request(explode('/', $this->routes[$uri]));
}
// Loop through the route array looking for wild-cards
foreach ($this->routes as $key => $val)
{
// Convert wild-cards to RegEx
$key = str_replace(':any', '.+', str_replace(':num', '[0-9]+', $key));
// Does the RegEx match?
if (preg_match('#^'.$key.'$#', $uri))
{
// Are we using a callback?
$callable = is_callable($val);
// Determine the appropriate preg_replace to use.
$preg_replace_type = $callable? 'preg_replace_callback': 'preg_replace';
// Are we using callbacks to process the matches?
if($callable){
$val = function($matches)use($val){
// Remove the string we are matching against from the matches array.
array_shift($matches);
// Distribute the matches to the arguments of the user's callback.
return call_user_func_array($val, $matches);
};
}
// Do we have a back-reference?
if ($callable OR (strpos($val, '$') !== FALSE AND strpos($key, '(') !== FALSE))
{
$val = call_user_func($preg_replace_type, '#^'.$key.'$#', $val, $uri);
}
return $this->_set_request(explode('/', $val));
}
}
// If we got this far it means we didn't encounter a
// matching route so we'll set the site default route
$this->_set_request($this->uri->segments);
}
}
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