private static function _GetInt4d($data, $pos)
	{
		// FIX: represent numbers correctly on 64-bit system
		// http://sourceforge.net/tracker/index.php?func=detail&aid=1487372&group_id=99160&atid=623334
		// Hacked by Andreas Rehm 2006 to ensure correct result of the <<24 block on 32 and 64bit systems
		$_or_24 = ord($data[$pos + 3]);
		if ($_or_24 >= 128) {
			// negative number
			$_ord_24 = -abs((256 - $_or_24) << 24);
		} else {
			$_ord_24 = ($_or_24 & 127) << 24;
		}
		return ord($data[$pos]) | (ord($data[$pos + 1]) << 8) | (ord($data[$pos + 2]) << 16) | $_ord_24;
	}
private static function _GetInt4d($data, $pos)
	{
		// FIX: represent numbers correctly on 64-bit system
		// http://sourceforge.net/tracker/index.php?func=detail&aid=1487372&group_id=99160&atid=623334
		// Hacked by Andreas Rehm 2006 to ensure correct result of the <<24 block on 32 and 64bit systems
		$_or_24 = ord($data[$pos + 3]);
		if ($_or_24 >= 128) {
			// negative number
			$_ord_24 = -abs((256 - $_or_24) << 24);
		} else {
			$_ord_24 = ($_or_24 & 127) << 24;
		}
		return ord($data[$pos]) | (ord($data[$pos + 1]) << 8) | (ord($data[$pos + 2]) << 16) | $_ord_24;
	}
private static function _GetInt4d ( $ data , $ pos ) { // FIX: represent numbers correctly on 64-bit system // http://sourceforge.net/tracker/index.php?func=detail&aid=1487372&group_id=99160&atid=623334 // Hacked by Andreas Rehm 2006 to ensure correct result of the <<24 block on 32 and 64bit systems $ _or_24 = ord ( $ data [ $ pos + 3 ] ) ; if ( $ _or_24 >= 128 ) { // negative number $ _ord_24 = - abs ( ( 256 - $ _or_24 ) << 24 ) ; } else { $ _ord_24 = ( $ _or_24 & 127 ) << 24 ; } return ord ( $ data [ $ pos ] ) | ( ord ( $ data [ $ pos + 1 ] ) << 8 ) | ( ord ( $ data [ $ pos + 2 ] ) << 16 ) | $ _ord_24 ; }
Read 4 bytes of data at specified position

@param string $data
@param int $pos
@return int
Read 4 bytes of data at specified position