Online PHP editor | output for FiWdk

@ 2020-08-31T17:53:34Z

<?php

$array = array_fill(0, 100000, true);

function is_indexed_foreach($array) {
    $n = 0;
    
    foreach ($array as $key => $_) {
        if ($key !== $n++) {
            return false;
        }
    }
    
    return true;
}

function is_indexed_range($array) {
    return array_keys($array) === range(0, count($array) - 1);
}

printf("%.2f mb\n", memory_get_peak_usage() / 1024 / 1024);

is_indexed_foreach($array);

printf("%.2f mb\n", memory_get_peak_usage() / 1024 / 1024);

is_indexed_range($array);

printf("%.2f mb\n", memory_get_peak_usage() / 1024 / 1024);

Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: 2.38 mb 2.38 mb 6.38 mb
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 2.38 mb 2.38 mb 6.38 mb
Output for 7.3.0 - 7.3.33, 8.1.0 - 8.1.28: 4.38 mb 4.38 mb 12.38 mb
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30: 4.37 mb 4.38 mb 12.38 mb
Output for 7.2.0 - 7.2.34: 4.37 mb 4.37 mb 12.38 mb

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