Online PHP editor | output for QjBWV

@ 2023-03-04T09:42:17Z

<?php

function dump(...$values): void
{
    foreach ($values as $value) {
        echo json_encode($value, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES), PHP_EOL;
    }
}

class Foo
{
    public readonly Exception $e;
    public function __construct()
    {
        $this->e = new Exception;
        dump(debug_backtrace());
    }
}

class Bar extends Foo
{
    public function __construct()
    {
        parent::__construct();
    }
}

function Bar(): Bar
{
    return new Bar();
}

$bar = new Bar();
dump($bar->e->getTrace());

Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.5 - 8.3.27, 8.4.1 - 8.4.14: [ { "file": "/in/QjBWV", "line": 24, "function": "__construct", "class": "Foo", "object": { "e": {} }, "type": "->", "args": [] }, { "file": "/in/QjBWV", "line": 33, "function": "__construct", "class": "Bar", "object": { "e": {} }, "type": "->", "args": [] } ] [ { "file": "/in/QjBWV", "line": 24, "function": "__construct", "class": "Foo", "type": "->", "args": [] }, { "file": "/in/QjBWV", "line": 33, "function": "__construct", "class": "Bar", "type": "->", "args": [] } ]
Output for 8.0.1 - 8.0.28: Parse error: syntax error, unexpected identifier "Exception", expecting variable in /in/QjBWV on line 12
Process exited with code 255.

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