Online PHP editor | output for JHS6W

@ 2020-04-21T17:28:34Z

<?php

function m()
{
    $memory = round(memory_get_usage() / 1024 / 1024, 2);
    $frame = debug_backtrace(0, 1)[0];
    $file = basename($frame['file']);
    $line = $frame['line'];

    printf("%s:%d | %sMb\n", $file, $line, $memory);
}

function gen(): \iterator
{
    $data = str_repeat('x', 10 * 1024 * 1024);
    $i = 0;

    while ($data) {
        m();
        yield $data;
        m();
        unset($data);
        yield;
        m();
        ++$i;
        // Simulate the API return nothing
        if ($i == 3) {
            $data = false;
        } else {
            $data = str_repeat('x', 10 * 1024 * 1024);
        }
        m();
    }
};

m();

foreach ($gen = gen() as $k => $v) {
    $gen->next();
    m();
    unset($k, $v);
    m();
}

m();

Output for 7.3.0 - 7.3.19, 7.4.0 - 7.4.7: JHS6W:36 | 0.37Mb JHS6W:19 | 10.38Mb JHS6W:21 | 10.38Mb JHS6W:40 | 10.38Mb JHS6W:42 | 0.37Mb JHS6W:24 | 0.37Mb JHS6W:32 | 10.38Mb JHS6W:19 | 10.38Mb JHS6W:21 | 10.38Mb JHS6W:40 | 10.38Mb JHS6W:42 | 0.37Mb JHS6W:24 | 0.37Mb JHS6W:32 | 10.38Mb JHS6W:19 | 10.38Mb JHS6W:21 | 10.38Mb JHS6W:40 | 10.38Mb JHS6W:42 | 0.37Mb JHS6W:24 | 0.37Mb JHS6W:32 | 0.37Mb JHS6W:45 | 0.37Mb
Output for 7.2.0 - 7.2.31: JHS6W:36 | 0.37Mb JHS6W:19 | 10.37Mb JHS6W:21 | 10.37Mb JHS6W:40 | 10.37Mb JHS6W:42 | 0.37Mb JHS6W:24 | 0.37Mb JHS6W:32 | 10.37Mb JHS6W:19 | 10.37Mb JHS6W:21 | 10.37Mb JHS6W:40 | 10.37Mb JHS6W:42 | 0.37Mb JHS6W:24 | 0.37Mb JHS6W:32 | 10.37Mb JHS6W:19 | 10.37Mb JHS6W:21 | 10.37Mb JHS6W:40 | 10.37Mb JHS6W:42 | 0.37Mb JHS6W:24 | 0.37Mb JHS6W:32 | 0.37Mb JHS6W:45 | 0.37Mb

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