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Warning: Undefined array key "a" in C:\xampp\htdocs\PBN\toSCCA6.php on line 11

Warning: Undefined array key "b" in C:\xampp\htdocs\PBN\toSCCA6.php on line 12

Fatal error: Uncaught Error: Call to undefined function mysql_connect() in C:\xampp\htdocs\PBN\toSCCA6.php:25 Stack trace: #0 {main} thrown in C:\xampp\htdocs\PBN\toSCCA6.php on line 25