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                <?php  | 
            
                            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Usage:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *     $myAnswer =  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *         CountryPrice_Translation::get_country_url_provider()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *             ->getSomething();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class CountryURLProvider extends Object implements CountryURLProviderInterface  | 
            
                            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private static $locale_get_parameter = 'ecomlocale';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * returns the selected country code if there is one ...  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * as an uppercase code, e.g. NZ  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string|null $url  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return bool  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function hasCountrySegment($url = '')  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $this->CurrentCountrySegment($url) ? true : false;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * returns the selected country code if there is onCurrentCountrySegmente ...  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * as an uppercase code, e.g. NZ  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string|null $url  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param bool $includeGetVariable  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return string|null  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function CurrentCountrySegment($url = '', $includeGetVariable = true)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $potentialCountry = '';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($includeGetVariable)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $getVar = Config::inst()->get('CountryURLProvider', 'locale_get_parameter'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if(isset($_GET[$getVar])) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $potentialCountry = $_GET[$getVar];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (strlen($potentialCountry) !== 2) { | 
            
                            
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                            $url = $this->getCurrentURL($url);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $parts = parse_url($url);  | 
            
                            
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                            if (isset($parts['path'])) { | 
            
                            
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                                $path = trim($parts['path'], '/');  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $array = explode('/', $path); | 
            
                            
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                                $potentialCountry = isset($array[0]) ? trim($array[0]) : '';  | 
            
                            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (strlen($potentialCountry) === 2) { | 
            
                            
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                            $potentialCountry = strtoupper($potentialCountry);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $check = EcommerceCountry::get()->filter(['Code' => $potentialCountry])->count();  | 
            
                            
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                            if ($check) { | 
            
                            
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                                return $potentialCountry;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     * replaces a country code in a URL with another one  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param  string $newCountryCode e.g. NZ / nz  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param  string $url  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @return string|null only returns a string if it is different from the original!  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function replaceCountryCodeInUrl($newCountryCode, $url = '')  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $url = $this->getCurrentURL($url);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $oldURL = $url;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        debug::log($url);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $newCountryCode = strtolower($newCountryCode);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $parsedUrl = parse_url($url);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (isset($parsedUrl['path']) && isset($parsedUrl['host'])) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $path = $parsedUrl['path'];  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $path = trim($path, '/');  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $pathParts = explode('/', $path); | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $currentCountryCode = $this->CurrentCountrySegment($url, false);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            if ($currentCountryCode) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                $pathParts[0] = $newCountryCode;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            } else { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                array_unshift($pathParts, $newCountryCode);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $parsedUrl['path'] = implode('/', $pathParts); | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $newURL =  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                $parsedUrl['scheme'] .  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                '://' .  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                Controller::join_links(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    $parsedUrl['host'],  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    $parsedUrl['path']  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            if (isset($parsedUrl['query'])) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                $newURL = $newURL . '?' . $parsedUrl['query'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (trim($oldURL, '/') !== trim($newURL, '/')) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return $newURL;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return '';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param  string|null $url can be a relative one or nothing at all ...  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return string      full URL currently being called.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function getCurrentURL($url = '')  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($url) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $url = Director::absoluteURL($url);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $protocol = Director::is_https() ? 'https://' : 'http://';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $url = $protocol.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (Director::is_site_url($url)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    128
                 | 
                                    
                                                     | 
                
                 | 
                            return $url;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    129
                 | 
                                    
                                                     | 
                
                 | 
                        } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    130
                 | 
                                    
                                                     | 
                
                 | 
                            return Director::absoluteURL('/'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    131
                 | 
                                    
                                                     | 
                
                 | 
                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    132
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    133
                 | 
                                    
                                                     | 
                
                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    134
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                        
The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.
The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.
To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.