function testHash()
{
$data = array(603604794, -1992726684, 1050533917, -2049282207, 378026414, -38779290, -25761049, -551699343);
$result = array(31505934, 205022762, -1518051379, -194223946, 2000539338, 1835853132, -99974255, 477201633);
$this->assertEqual(Sha256::hash($data), $result);
}
function find($iterations = 0xffffffff)
{
$ret = null;
while ($this->nonce < 0xffffffff && $iterations--) {
$this->data[3] = $this->nonce;
$h0 = Sha256::hash($this->midstate, $this->data);
for ($j = 0; $j < 8; $j++) {
$this->hash1[$j] = $h0[$j];
}
$h = Sha256::hash($this->hash1);
if ($h[7] == 0) {
foreach ($this->data as $d) {
$this->half[] = $d;
}
$ret = $this->half;
break;
}
$this->nonce++;
#if ($this->nonce % 100 == 0) {
# echo '|' . $this->nonce . '|';
# if ($this->nonce % 1000 === 0) echo '<br>';
# ob_flush();
# flush();
#}
}
return $ret;
}
