PHP Mysql PDO和解锁表

Question

如果 php 出现错误(try/catch)，我应该管理表解锁吗？或者锁在脚本结束时由 PDO 对象自动释放？

Answer 1

是的。除非您使用的是持久连接，否则在脚本终止时，PDO 将关闭连接，而 mysql 将释放所有锁:

PHP will automatically close the connection when your script ends.
http://php.net/manual/en/pdo.connections.php

If the connection for a client session terminates, whether normally or abnormally, the server implicitly releases all table locks held by the session (transactional and nontransactional).
https://dev.mysql.com/doc/refman/5.1/en/lock-tables.html