Online PHP editor | output for EJCaI

@ 2019-01-08T10:47:19Z

<?php

class Node
{
    /** @var Node */
    public $previous;
    /** @var Node */
    public $next;
}

$firstNode = new Node();
$firstNode->previous = $firstNode;
$firstNode->next = $firstNode;

$circularDoublyLinkedList = $firstNode;

var_dump(gc_enabled());

for ($i = 0; $i < 160000; $i++) {
    $currentNode = $circularDoublyLinkedList;
    $nextNode = $circularDoublyLinkedList->next;

    $newNode = new Node();
    
    $newNode->previous = $currentNode;
    $currentNode->next = $newNode;
    $newNode->next = $nextNode;
    $nextNode->previous = $newNode;

    $circularDoublyLinkedList = $nextNode;
}

var_dump('this line will not be reached');

Output for 7.3.4 - 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: bool(true) string(29) "this line will not be reached"
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 bool(true) string(29) "this line will not be reached"
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.3: bool(true)
Process exited with code 139.

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