Infinite recursion when iterating

[Daniil Gentili]

This code causes infinite recursion:

<?php declare(strict_types=1);

require 'vendor/autoload.php';

$config = Amp\Mysql\MysqlConfig::fromString(
    "host=127.0.0.1 user=daniil db=test"
);

$pool = new Amp\Mysql\MysqlConnectionPool($config);

foreach ($pool->execute("SELECT * FROM 6565201688_MTProto_chats") as $result) {
    var_dump($result);
}

[Daniil Gentili]

Using the table at https://paste.daniil.it/dump.sql

[Daniil Gentili]

With mariadb from 11.2.2-MariaDB, client 15.2 for Linux (x86_64) using readline 5.1

[Daniil Gentili]

The culprit seems to be amphp/sql-common@de27f1c

[Aaron Piotrowski]

The issue seems to be yield from here. Swapping that to foreach ($result as $row) yield $row fixes the segfault. Seems we found a PHP bug, though I'm not sure how to repo it in isolation.

[Bilge]

OK, but we really need to reproduce it 😞