Online PHP editor | output for o2URB

@ 2018-10-31T14:36:01Z

<?php
$page_access = array(
    'index' => array('1', '2', '3'),
    'users' => array('4', '5', '6')
);

function level_access($page){
    global $page_access;
    if (array_key_exists($page, $page_access)) {
        echo "yes";
    } else {
        echo "no";
    }
}

level_access('index');

function level_access2($page){
    global $page_access;
    if (isset($page_access[$page])) {
        echo "yes";
    } else {
        echo "no";
    }
}

level_access2('index');

Output for 5.6.38, 7.1.0 - 7.1.25, 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: yesyes
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 yesyes

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