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@ 2015-04-29T16:30:47Z

<?php

function f() {
    global $x;
    $y = $x;
    g();
    var_dump($x);
    var_dump($y);
}

function g() {
    global $x;
    $x = 2;
}

$x = 1;
f();

Output
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var_dump: documentation ( source)

preferences:dark modelive preview

53.07 ms | 402 KiB | 5 Q