public function testConvertFromString()
{
$string = chr(255) . chr(254) . chr(253);
$bitString = BitString::fromString($string);
$this->assertEquals(24, $bitString->getLength());
$this->assertEquals('111111111111111011111101', $bitString->toBinaryString());
// BitString should convert back to the original string.
$string2 = $bitString->__toString();
$this->assertEquals($string, $string2);
}
/**
* 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;
}
