Online PHP editor | output for 2Hqtt

@ 2016-02-18T10:53:18Z

<?php

function qsort($arr){
    if(!isset($arr[1])){
        return $arr;
    }
    
    $larr = $rarr = [];//初始化变量，确保它一定存在
    for ($i=1; $i < count($arr); $i++) { //不用$i+1，而是修改初始值为1
        if($arr[$i]<$arr[0]){
            $larr[] = $arr[$i];
        }
        if($arr[$i]>=$arr[0]){
            $rarr[] = $arr[$i];
        }

    }

    $larr = qsort($larr);
    $larr[] = $arr[0];
    $rarr = qsort($rarr);
    return array_merge($larr,$rarr);

}

print_r(qsort(array(411,21,333,666)));

Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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: Array ( [0] => 21 [1] => 333 [2] => 411 [3] => 666 )
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 Array ( [0] => 21 [1] => 333 [2] => 411 [3] => 666 )

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