Pokerank is a poker hand scoring algorithm written in PHP. The algorithm assigns a score to a poker hand such that a better hand has a higher score (eg. King-High Straight Flush > King-High Straight).The algorithm is loosely built upon the work of Cactus Kev and uses a lookup table containing the 7462 distinct hand values that a hand may take.

$pokerank = new Pokerank();
$pokerank->setLookup(require ".." . DIRECTORY_SEPARATOR . "src" . DIRECTORY_SEPARATOR . "lookup.php");

// Royal flush
$card1 = $pokerank->toInt(Pokerank::SPADE, Pokerank::ACE);
$card2 = $pokerank->toInt(Pokerank::SPADE, Pokerank::KING);
$card3 = $pokerank->toInt(Pokerank::SPADE, Pokerank::QUEEN);
$card4 = $pokerank->toInt(Pokerank::SPADE, Pokerank::JACK);
$card5 = $pokerank->toInt(Pokerank::SPADE, Pokerank::TEN);

echo "Score of Royal Flush: ", $pokerank->score($card1, $card2, $card3, $card4, $card5);
echo "\n";

This is a sample usage of the algorithm. See sample/sample.php for more.

The program was developed using PHP5.4 and used some features (eg. [] vs array ()) not available to 5.3 and below. It shouldn't be too hard to port though.