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<?php |
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namespace Almendra\Http\Helpers; |
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use Psr\Http\Message\UriInterface as PsrUri; |
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class URI |
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{ |
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/** |
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* Retrieve the parameters from the URI |
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* |
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* @param string $uri The URI |
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* @param boolean $serialized It's to be serialized? |
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* @return mixed |
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*/ |
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public static function getQueryParams($uri, $serialized = true) |
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{ |
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$params = ''; |
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// do parameters exist? |
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if (strstr($uri, '?')) { |
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$params = substr($uri, strpos($uri, '?') + 1); |
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} |
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// check the parameters |
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if (!self::isQueryParamsValid($params)) { |
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throw new \InvalidArgumentException("Invalid query parameters"); |
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} |
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if (!$serialized) { |
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$params = static::deserializeQueryParams($params); |
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} |
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return $params; |
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} |
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/** |
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* Returns the query params as an associative array |
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* |
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* @param string $params The query parameters |
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* @return array |
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*/ |
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public static function deserializeQueryParams($params) |
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{ |
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$fields = []; |
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$params = explode('&', $params); |
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foreach ($params as $param) { |
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$parts = explode('=', $param); |
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// eliminate not defined parameters |
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if (count($parts) != 2) { |
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continue; |
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} elseif (null === $parts[0] || '' === $parts[0]) { |
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continue; |
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} |
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$fields[$parts[0]] = $parts[1]; |
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} |
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return $fields; |
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} |
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/** |
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* Serializes the query params |
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* |
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* @param array $queryParams The query params |
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* @return string |
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*/ |
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public static function serializeQueryParams(array $queryParams) |
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{ |
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$params = ''; |
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foreach ($queryParams as $key => $value) { |
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$params .= $key . '=' . $value . '&'; |
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} |
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return substr($params, 0, -1); |
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} |
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/** |
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* Check query parameters validity |
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* |
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* @param string $params The query parameters |
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* @return boolean true if valid |
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*/ |
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public static function isQueryParamsValid($params) |
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{ |
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if (is_array($params)) { |
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throw new \InvalidArgumentException("Query parameters must be an string"); |
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} |
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$params = self::deserializeQueryParams($params); |
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return true; |
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} |
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/** |
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* Percentage encode a query. |
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* |
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* @param string $query The query to be encoded. |
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* @return string |
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*/ |
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public static function percentEncode($query) |
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{ |
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return htmlentities(strip_tags($query), ENT_QUOTES); |
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} |
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public static function isQueryValid($query) |
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{ |
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if (!is_string($query) && !method_exists($query, '__toString')) { |
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return false; |
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} |
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return true; |
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} |
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public static function isValid($uri) |
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{ |
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if (!($uri instanceof PsrUri) && !is_string($uri)) { |
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return false; |
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} |
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return true; |
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} |
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/** |
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* Retrieve the fragment from the URI |
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* |
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* @param string $uri The URI |
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* @return string |
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*/ |
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public static function getQueryFragment($uri) |
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{ |
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return null; |
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} |
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/** |
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* Validates a port within TCP and UDP ranges. |
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* |
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* @param string $port The port |
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* @return boolean |
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*/ |
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public static function isPortValid($port) |
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{ |
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return true; |
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} |
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/** |
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* Validates a path. |
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* |
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* @param string $path The path |
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* @return boolean |
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*/ |
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public static function isPathValid($path) |
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{ |
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return true; |
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} |
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public function validator() |
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{ |
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return [ |
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'name' => [ |
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'min' => 255, |
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], |
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'value' => [ |
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], |
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]; |
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} |
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} |
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This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVar
assignment in line 1 and the$higher
assignment in line 2 are dead. The first because$myVar
is never used and the second because$higher
is always overwritten for every possible time line.