Online PHP editor | output for BXDK0

@ 2017-07-07T13:49:25Z

<?php

function count_to_ten() {
    $i = 1;
    $cmd = yield $i;
    if ($cmd == 't') {
        echo "close";
        return false;
    }
    yield 3 => 2;
    yield from [3, 4];
    yield from new ArrayIterator([5, 6]);
    yield from seven_eight();
    return yield from nine_ten();
}

function seven_eight() {
    yield 7;
    yield from eight();
}

function eight() {
    yield 8;
}

function nine_ten() {
    yield 9;
    return 10;
}

$gen = count_to_ten();
foreach ($gen as $k => $num) {
    echo "$k -> $num \n";
}
echo $gen->getReturn();
echo $gen->send('t');

Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: 0 -> 1 3 -> 2 0 -> 3 1 -> 4 0 -> 5 1 -> 6 0 -> 7 0 -> 8 0 -> 9 10
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 0 -> 1 3 -> 2 0 -> 3 1 -> 4 0 -> 5 1 -> 6 0 -> 7 0 -> 8 0 -> 9 10

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