A PHP Error was encountered

Severity: Notice

Message: Undefined offset: 0

Filename: controllers/A2z.php

Line Number: 504

Backtrace:

File: /home/c8w19n63gja7/public_html/a2zithub.org/training/application/controllers/A2z.php
Line: 504
Function: _error_handler

File: /home/c8w19n63gja7/public_html/a2zithub.org/training/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Trying to access array offset on value of type null

Filename: controllers/A2z.php

Line Number: 506

Backtrace:

File: /home/c8w19n63gja7/public_html/a2zithub.org/training/application/controllers/A2z.php
Line: 506
Function: _error_handler

File: /home/c8w19n63gja7/public_html/a2zithub.org/training/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Trying to access array offset on value of type null

Filename: controllers/A2z.php

Line Number: 508

Backtrace:

File: /home/c8w19n63gja7/public_html/a2zithub.org/training/application/controllers/A2z.php
Line: 508
Function: _error_handler

File: /home/c8w19n63gja7/public_html/a2zithub.org/training/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Undefined offset: 0

Filename: controllers/A2z.php

Line Number: 508

Backtrace:

File: /home/c8w19n63gja7/public_html/a2zithub.org/training/application/controllers/A2z.php
Line: 508
Function: _error_handler

File: /home/c8w19n63gja7/public_html/a2zithub.org/training/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Undefined offset: 0

Filename: controllers/A2z.php

Line Number: 512

Backtrace:

File: /home/c8w19n63gja7/public_html/a2zithub.org/training/application/controllers/A2z.php
Line: 512
Function: _error_handler

File: /home/c8w19n63gja7/public_html/a2zithub.org/training/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Undefined offset: 0

Filename: controllers/A2z.php

Line Number: 514

Backtrace:

File: /home/c8w19n63gja7/public_html/a2zithub.org/training/application/controllers/A2z.php
Line: 514
Function: _error_handler

File: /home/c8w19n63gja7/public_html/a2zithub.org/training/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Trying to access array offset on value of type null

Filename: controllers/A2z.php

Line Number: 516

Backtrace:

File: /home/c8w19n63gja7/public_html/a2zithub.org/training/application/controllers/A2z.php
Line: 516
Function: _error_handler

File: /home/c8w19n63gja7/public_html/a2zithub.org/training/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/c8w19n63gja7/public_html/a2zithub.org/training/system/core/Exceptions.php:271)

Filename: core/Common.php

Line Number: 570

Backtrace:

File: /home/c8w19n63gja7/public_html/a2zithub.org/training/application/controllers/A2z.php
Line: 519
Function: query

File: /home/c8w19n63gja7/public_html/a2zithub.org/training/index.php
Line: 315
Function: require_once

Database Error

A Database Error Occurred

Error Number: 1064

You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')' at line 1

SELECT * FROM course_technology WHERE technology_id IN ()

Filename: controllers/A2z.php

Line Number: 519