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Deprecated: htmlspecialchars(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/web/it1/lab4.php on line 82
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Deprecated: htmlspecialchars(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/web/it1/lab4.php on line 83
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оценки:
Warning: Undefined array key "grades" in /var/www/html/web/it1/lab4.php on line 84
Fatal error: Uncaught TypeError: implode(): Argument #1 ($array) must be of type array, string given in /var/www/html/web/it1/lab4.php:84
Stack trace:
#0 /var/www/html/web/it1/lab4.php(84): implode()
#1 {main}
thrown in /var/www/html/web/it1/lab4.php on line 84