Error de conexión: SQLSTATE[HY000] [2002] No such file or directory<br />
<b>Fatal error</b>:  Uncaught Error: Call to a member function query() on null in /var/www/POS_2025/index.php:6
Stack trace:
#0 {main}
  thrown in <b>/var/www/POS_2025/index.php</b> on line <b>6</b><br />