public function testPropOf() { $assoc = ['x' => 100, 'y' => 200, 'z' => 300]; $this->assertEquals(P::prop('x', $assoc), P::propOf($assoc, 'x')); }
require_once '../ch08/model/Account.php'; use Model\Account; use Model\User; use Rx\Observable; use Rx\Observer; // SELECT firstname // FROM users // WHERE firstname IS NOT NULL // ORDER BY firstname DESC // LIMIT 1; print_r(P::pipe('\\Model\\User::query', P::map(P::prop('firstname')), P::filter(function ($n) { return !empty($n); }), 'P::reverse', P::take(1))()); P::compose(P::take(1), 'P::reverse', P::filter(function ($n) { return !empty($n); }), P::map(P::prop('firstname')), '\\Model\\User::query')(); // PHP Warning: f() expects // at least 2 parameters, 1 given // $format = P::compose('addExclamation', $repeat(2), 'strtoupper'); // $format('Hello World'); //-> HELLO WORLD HELLO WORLD! $applyTax = P::curry2(function ($rate, $amount) { return $amount + $amount * ($rate / 100); }); $applyTax(6.0); //-> Closure $applyTax(6.0, 100); //-> 106 $applyTax(6.0)(100); //-> 106 // $total = P::compose($currency('USD'), $applyTax(6.0), 'P::sum'); // $total([10.95, 16.99, 25.99]); //-> USD 57.1658