Checking if a transaction is still open in PDO
<?php
$pdo = new PDO('mysql:dbname=boo;host=127.0.0.1');
$pdo->beginTransaction();
var_dump($pdo->inTransaction());
// error happens and rollback is invoked
$pdo->rollBack();
var_dump($pdo->inTransaction());
Result
bool(true)
bool(false)
bool(false)
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Used Versions
PHP 7.3, Zend 3.0, Symfony 4.3, Laravel 5.8, PHPUnit 8.0, Doctrine 2.10