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@ 2015-11-11T20:41:20Z

<?php

function gen() {
  // TODO: HHVM currently does not support yield from (or yield) as
  // expressions. As such, this test had to be slightly modified.
  // The original line was:
  // var_dump(yield from gen($a + 1));
  //$b = yield from gen($a + 1);
  yield 1;
  yield 2;
  var_dump('in the middle of gen');
  yield 3;
  yield 4;
}

function bar($gen) {
  // TODO: HHVM currently does not support yield from (or yield) as
  // expressions. As such, this test had to be slightly modified.
  // The original line was:
  // var_dump(yield from gen($a + 1));
  yield from $gen;
}

/* Twice a Generator from bar() using yield from on $gen */
$gen = gen();
$gens[] = bar($gen);
$gens[] = bar($gen);

do {
  foreach ($gens as $g) {
    var_dump($g->current());
    $g->next();
  }
} while($gens[0]->valid());
var_dump($gens[1]->valid());

Output for git.master, git.master_jit, rfc.property-hooks: int(1) int(2) string(20) "in the middle of gen" int(3) int(4) int(4) NULL bool(false)

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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