A PHP Error was encountered
Severity: 8192
Message: substr(): Passing null to parameter #1 ($string) of type string is deprecated
Filename: views/test_series_detail.php
Line Number: 30
Backtrace:
File: /var/www/html/Online-Test-Series-Free-Easyshiksha/application/views/test_series_detail.php
Line: 30
Function: substr
File: /var/www/html/Online-Test-Series-Free-Easyshiksha/application/controllers/Home.php
Line: 270
Function: view
File: /var/www/html/Online-Test-Series-Free-Easyshiksha/index.php
Line: 315
Function: require_once
