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<?php function gen() { yield 0; yield 1; yield 2; } $gen = (function(){ $foo = gen(); $foo->rewind(); $foo->valid(); yield $foo->key() => $foo->current(); $foo->next(); $foo->valid(); yield $foo->key() => $foo->current(); foreach($foo as $k => $v){ yield $k => $v; } })(); foreach($gen as $k => $v){ echo $k . " => " . $v . "\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
0 => 0 1 => 1 Fatal error: Uncaught Exception: Cannot rewind a generator that was already run in /in/D8O5G:19 Stack trace: #0 /in/D8O5G(25): {closure}() #1 {main} thrown in /in/D8O5G on line 19
Process exited with code 255.

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