Online PHP editor | output for aUPHU

@ 2016-08-30T10:43:48Z

<?php
$x = 10;
function outer($x) {
    function inner($y) {
        global $x; // uses the actually global $x from line 2, not the param from line 3
        return $x + $y;
    }
    return inner(5);
}
echo outer(5); // expected: 10, actual: 15

/*
$z = 10;
function outer2($z) {
    function inner($w) use ($z) { // syntax error, function (...) use (...) form is reserved for closures
        return $z + $w;
    }
    return inner(5);
}
echo outer2(5); // expected: 10, actual: syntax error
*/

Output for 5.6.0 - 5.6.25, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 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: 15
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 15

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