| public __construct ( integer $version = 4 ) | ||
| $version | integer | UUID version to generate (currently, only version 4 is supported) |
public function __construct($version = 4)
{
$uuid = array();
for ($i = 0; $i < 16; $i++) {
$uuid[] = mt_rand(0, 255);
}
// variant (bit 6 = 1, bit 7 = 0)
$uuid[8] = $uuid[8] & 0x3f | 0x80;
/* // weird byte orders make my head hurt!
// version (bits 4-7 = 0100);
$uuid[7] = ( $uuid[7] & 0x0f ) | 0x40;
*/
// version (bits 12-15 = 0100)
$uuid[6] = $uuid[6] & 0xf | 0x40;
$this->uuid = $uuid;
}