3v4l.org

run code in 300+ PHP versions simultaneously

@ 2017-07-10T03:35:01Z

<?php
class Node {
    public $val;
    public $next;
    
    public function __construct($val, $next) {
        $this->val = $val;
        $this->next = $next;
    }
    
    public function __toString() {
        $a = [];
        $c = $this;
        while ($c != null) {
            $a[] = $c->val;
            $c = $c->next;
        }
        return implode(", ", $a)."\n";
    }
    
    public static function reverse($list) {
        $newl = null;
        $curr = $list;
        while ($curr != null) {
            $next = $curr->next;
            $curr->next = $newl;
            $newl = $curr;
            $curr = $next;
        }
        return $newl;
    }
}

$list = new Node(1, new Node(2, new Node(3, new Node(4, new Node(5, null)))));
echo $list;

$list = Node::reverse($list);
echo $list;
exit();

Output for 7.0.0 - 7.0.20, 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: 1, 2, 3, 4, 5 5, 4, 3, 2, 1
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 1, 2, 3, 4, 5 5, 4, 3, 2, 1

preferences:dark modelive preview

176.68 ms | 402 KiB | 187 Q