public function testConvertToStringMultiWord()
{
$bitString = new BitString(64);
$bitString->setBitsHighToLow(63, '1111111111111111111111111111111100000000000000000000000000000000');
$string = $bitString->__toString();
// 64-bits should map to 8 8-bit characters.
$this->assertEquals(8, strlen($string));
$chars = str_split($string);
$this->assertEquals(chr(255), $chars[0]);
$this->assertEquals(chr(0), $chars[count($chars) - 1]);
$bitString2 = BitString::fromString($string);
$this->assertEquals('1111111111111111111111111111111100000000000000000000000000000000', $bitString2->toBinaryString());
}
/**
* The data is treated as big-endian. The first (left-most) character of the string
* argument is converted into the most significant bits of the resultant bit string.
*
* @param string $string
* @return BitString
*/
public static function fromString($string)
{
$bitCount = strlen($string) * 8;
$bitString = new BitString($bitCount);
$index = $bitCount - 1;
foreach (str_split($string) as $char) {
$bitString->setBitsHighToLow($index, str_pad(decbin(ord($char)), 8, '0', STR_PAD_LEFT));
$index -= 8;
}
return $bitString;
}