public function Reader::__construct in Smart IP 7.2

Same name in this branch

1. 7.2 includes/vendor/geoip2/geoip2/src/Database/Reader.php \GeoIp2\Database\Reader::__construct()
2. 7.2 includes/vendor/maxmind-db/reader/src/MaxMind/Db/Reader.php \MaxMind\Db\Reader::__construct()

Same name and namespace in other branches

1. 6.2 includes/vendor/maxmind-db/reader/src/MaxMind/Db/Reader.php \MaxMind\Db\Reader::__construct()

Constructs a Reader for the MaxMind DB format. The file passed to it must be a valid MaxMind DB file such as a GeoIp2 database file.

Parameters

string $database: the MaxMind DB file to use.

Throws

\InvalidArgumentException for invalid database path or unknown arguments

\MaxMind\Db\Reader\InvalidDatabaseException if the database is invalid or there is an error reading from it.

File

includes/vendor/maxmind-db/reader/src/MaxMind/Db/Reader.php, line 37

Class

Reader

Instances of this class provide a reader for the MaxMind DB format. IP addresses can be looked up using the <code>get</code> method.

Namespace

MaxMind\Db

Code

public function __construct($database) {
  if (func_num_args() != 1) {
    throw new \InvalidArgumentException('The constructor takes exactly one argument.');
  }
  if (!is_readable($database)) {
    throw new \InvalidArgumentException("The file \"{$database}\" does not exist or is not readable.");
  }
  $this->fileHandle = @fopen($database, 'rb');
  if ($this->fileHandle === false) {
    throw new \InvalidArgumentException("Error opening \"{$database}\".");
  }
  $this->fileSize = @filesize($database);
  if ($this->fileSize === false) {
    throw new \UnexpectedValueException("Error determining the size of \"{$database}\".");
  }
  $start = $this
    ->findMetadataStart($database);
  $metadataDecoder = new Decoder($this->fileHandle, $start);
  list($metadataArray) = $metadataDecoder
    ->decode($start);
  $this->metadata = new Metadata($metadataArray);
  $this->decoder = new Decoder($this->fileHandle, $this->metadata->searchTreeSize + self::$DATA_SECTION_SEPARATOR_SIZE);
}