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<?php |
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/** |
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* Wrapping function By Dimas Lanjaka |
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* @author Dimas Lanjaka <[email protected]> |
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*/ |
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/** |
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* An example CORS-compliant method. It will allow any GET, POST, or OPTIONS requests from any origin. |
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* |
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* In a production environment, you probably want to be more restrictive, but this gives you the general idea of what is involved. For the nitty-gritty low-down, read: |
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* - https://developer.mozilla.org/en/HTTP_access_control |
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* - https://fetch.spec.whatwg.org/#http-cors-protocol |
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* @return void |
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*/ |
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function cors() |
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{ |
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if (!headers_sent()) return; |
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// Allow from any origin |
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if (isset($_SERVER['HTTP_ORIGIN'])) { |
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// Decide if the origin in $_SERVER['HTTP_ORIGIN'] is one |
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// you want to allow, and if so: |
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header("Access-Control-Allow-Origin: {$_SERVER['HTTP_ORIGIN']}"); |
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header('Access-Control-Allow-Credentials: true'); |
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header('Access-Control-Max-Age: 86400'); // cache for 1 day |
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} |
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// Access-Control headers are received during OPTIONS requests |
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if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') { |
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if (isset($_SERVER['HTTP_ACCESS_CONTROL_REQUEST_METHOD'])) { |
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// may also be using PUT, PATCH, HEAD etc |
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header("Access-Control-Allow-Methods: GET, POST, OPTIONS"); |
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} |
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if (isset($_SERVER['HTTP_ACCESS_CONTROL_REQUEST_HEADERS'])) { |
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header("Access-Control-Allow-Headers: {$_SERVER['HTTP_ACCESS_CONTROL_REQUEST_HEADERS']}"); |
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} |
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exit(0); |
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} |
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//echo "You have CORS!"; |
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} |
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/** |
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* Check if string start with needle string |
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* |
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* @param string $haystack |
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* @param string $needle |
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* @return boolean |
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*/ |
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function startsWith($haystack, $needle) |
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{ |
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$length = strlen($needle); |
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return substr($haystack, 0, $length) === $needle; |
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} |
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/** |
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* Check if string ends with needle string |
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* |
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* @param string $haystack |
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* @param string $needle |
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* @return boolean |
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*/ |
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function endsWith($haystack, $needle) |
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{ |
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$length = strlen($needle); |
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if (!$length) { |
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return true; |
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} |
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return substr($haystack, -$length) === $needle; |
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} |
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/** |
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* Convert string or number or float to number/float value |
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* |
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* @param int|float|string $val |
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* @return int|float|null |
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*/ |
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function toNumber($val) |
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{ |
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if (is_string($val)) { |
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if (preg_match('/^\d*\.?\d*$/m', $val, $matches)) { |
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$val = $matches[0]; |
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} else if (preg_match('/^\d*\.?\d*/m', $val, $matches)) { |
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$val = $matches[0]; |
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} |
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} |
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if (is_numeric($val)) { |
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$int = (int)$val; |
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$float = (float)$val; |
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$val = ($int == $float) ? $int : $float; |
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return $val; |
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} else { |
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trigger_error("Cannot cast $val to a number", E_USER_WARNING); |
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return null; |
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} |
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} |
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/** |
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* Convert path to url |
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* |
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* @param string $file |
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* @param string $Protocol |
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* @return void |
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*/ |
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function path2url($file, $Protocol = 'http://') |
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{ |
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$file = realpath($file); |
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//var_dump($file); |
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if ($file) { |
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return $Protocol . $_SERVER['HTTP_HOST'] . fixurl(str_replace(fixpath($_SERVER['DOCUMENT_ROOT']), '', fixpath($file))); |
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} |
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//echo debug_backtrace()[1]['function']; |
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} |
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/** |
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* Get URL Origin by Path |
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*/ |
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function getOrigin($path) |
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{ |
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return (isset($_SERVER['HTTPS']) && 'on' === $_SERVER['HTTPS'] ? 'https' : 'http') . "://$_SERVER[HTTP_HOST]$path"; |
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} |
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/** |
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* Fix url |
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* |
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* @param string $url |
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* @return string fixed url |
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*/ |
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function fixurl(string $url) |
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{ |
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$remove_backslash = preg_replace('/[\/\\\\]{2,100}/m', '/', $url); |
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return str_replace("\\", "/", $remove_backslash); |
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} |
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/** |
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* Fix path separator based OS |
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* |
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* @param string $subject |
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* @return string |
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*/ |
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function fixpath(string $subject) |
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{ |
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$replace = (DIRECTORY_SEPARATOR === '\\') |
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? str_replace('/', '\\', $subject) |
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: str_replace('\\', '/', $subject); |
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return preg_replace('/[\/\\\\]{2,100}/m', DIRECTORY_SEPARATOR, $replace); |
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} |
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/** |
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* Write to file |
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* |
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* @param string $file |
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* @param string $content |
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* @param boolean $append |
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* @return void |
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*/ |
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function write($file, $content, bool $append = false) |
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{ |
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if (!file_exists(dirname($file))) { |
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mkdir(dirname($file)); |
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} |
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if (file_exists($file)) delete($file); |
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file_put_contents($file, $content, ($append ? FILE_APPEND : 0)); |
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} |
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/** |
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* Delete file or directory. |
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* Unset array or object. |
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* @param mixed $object |
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* @return void |
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*/ |
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function delete($object) |
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{ |
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if (is_file($object) || is_dir($object)) { |
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unlink($object); |
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} else if (is_array($object) || is_object($object)) { |
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unset($object); |
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} |
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} |
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/** |
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* Get All included files |
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* |
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* @return string|false|void |
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*/ |
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function get_includes() |
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{ |
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$included = array_values(array_filter(array_map(function ($arr) { |
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if (is_string($arr)) { |
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if (strpos($arr, 'vendor')) { |
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return ''; |
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} |
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} |
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return $arr; |
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}, get_included_files()))); |
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$included[] = 'total included files: ' . count(get_included_files()); |
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$inc = \JSON\json::json($included, false, false); |
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return $inc; |
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} |
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/** |
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* check session name exist ($_SESSION) |
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*/ |
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function is_session(string $sessionName) |
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{ |
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return isset($_SESSION[$sessionName]); |
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} |
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/** |
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* Get session value by name ($_SESSION) |
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*/ |
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function get_session(string $sessionName) |
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{ |
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if (is_session($sessionName)) { |
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return $_SESSION[$sessionName]; |
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} |
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} |
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/** |
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* Set session |
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*/ |
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function set_session(string $name, $value) |
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{ |
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$_SESSION[$name] = $value; |
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} |
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/** |
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* Parse URL deeper. |
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*/ |
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function parse_url2($url, $encoded = false) |
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{ |
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if ($encoded) { |
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$url = urldecode($url); |
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} |
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$url = html_entity_decode($url); |
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$parts = parse_url($url); |
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if (isset($parts['query'])) { |
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parse_str($parts['query'], $query); |
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$parts['original_query'] = $parts['query']; |
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$parts['query'] = $query; |
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} |
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return array_merge($parts); |
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} |
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In general, usage of exit should be done with care and only when running in a scripting context like a CLI script.