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@ 2015-04-10T12:55:25Z

<?php

function & genRefInner() {
    $var = 1;
    yield $var;
}

function & genRefOuter() {
    return genRefInner();
}

foreach(genRefOuter() as $i) {
    var_dump($i);
}

Output
Performance
VLD
References
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var_dump: documentation ( source)

preferences:dark modelive preview

27.53 ms | 402 KiB | 5 Q