function testMapMulti()
{
$a = array(1, 2, 3);
$b = array("one", "two", "three");
$this->assertEquals(array(array(1, "one"), array(2, "two"), array(3, "three")), iterator_to_array(itertools\map(function ($a, $b) {
return array($a, $b);
}, itertools\to_iterator($a), itertools\to_iterator($b))));
}
function getTimestamp()
{
$lastModifiedTimes = iterator_to_array(itertools\filter(itertools\map(function ($file) {
if (file_exists($file)) {
return @filemtime($file);
}
}, $this->prerequisites)));
if ($lastModifiedTimes) {
return max($lastModifiedTimes);
}
return 0;
}
/**
*
*/
public function testMapMoreIterable()
{
$lambda = function (...$args) {
return call_user_func('array_sum', $args);
};
$a = [1, 2, 3, 4];
$b = [17, 12, 11, 10];
$c = [-1, -4, 5, 9];
$twoIterable = map($lambda, $a, $b);
$threeIterable = map($lambda, $a, $b, $c);
$this->assertSame([18, 14, 14, 14], to_array($twoIterable));
$this->assertSame([17, 10, 19, 23], to_array($threeIterable));
}
function map($callback)
{
$this->iterator = itertools\map($callback, $this->getIterator());
return $this;
}
