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@ 2015-11-05T19:24:11Z

<?php

function gen($a) {
    yield $a;
    yield $a + 1;
}

function yf() {
    yield from gen(1);
    yield from gen(10);
}

$g = yf();
var_dump($g->current());

Output
Performance
VLD
References
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var_dump: documentation ( source)

preferences:dark modelive preview

59.34 ms | 402 KiB | 5 Q