3v4l.org

run code in 300+ PHP versions simultaneously
<?php function &foo() { $x = array(1,2,3); yield $x; echo "Gen: "; var_dump($x); $x[] = 99; return $x; } $rets = array(); $gen = foo(); foreach ($gen as &$val) { var_dump($val); $val[] = 42; $rets[] =& $val; } var_dump($gen->getReturn()); $rets[0][] = 100; var_dump($gen->getReturn()); var_dump($rets);

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52.86 ms | 402 KiB | 5 Q