Erro na conexão: SQLSTATE[HY000] [1049] Unknown database 'otica_db'<br />
<b>Warning</b>:  Undefined global variable $_SESSION in <b>C:\xampp\htdocs\sysotica\controllers\ClienteController.php</b> on line <b>16</b><br />
<br />
<b>Warning</b>:  Trying to access array offset on value of type null in <b>C:\xampp\htdocs\sysotica\controllers\ClienteController.php</b> on line <b>16</b><br />
<br />
<b>Warning</b>:  Trying to access array offset on value of type null in <b>C:\xampp\htdocs\sysotica\controllers\ClienteController.php</b> on line <b>16</b><br />
<br />
<b>Fatal error</b>:  Uncaught Error: Call to a member function prepare() on null in C:\xampp\htdocs\sysotica\models\Cliente.php:48
Stack trace:
#0 C:\xampp\htdocs\sysotica\controllers\ClienteController.php(17): Cliente-&gt;read(NULL)
#1 C:\xampp\htdocs\sysotica\clientes.php(22): ClienteController-&gt;index()
#2 {main}
  thrown in <b>C:\xampp\htdocs\sysotica\models\Cliente.php</b> on line <b>48</b><br />