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<?php function genmer($gens) { foreach($gens as $gen) { while($gen->valid()) { yield $gen->current(); $gen->next(); } } } function gen_one_to_three() { for ($i = 1; $i <= 3; $i++) { // Note that $i is preserved between yields. yield $i; } } $on = gen_one_to_three(); $two = gen_one_to_three(); $three = gen_one_to_three(); $merged = genmer([$on, $two, $three]); foreach($merged as $m) { var_dump($m); }
Output for git.master, git.master_jit, rfc.property-hooks
int(1) int(2) int(3) int(1) int(2) int(3) int(1) int(2) int(3)

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