Fatal error: Uncaught TypeError: mysqli_num_rows(): Argument #1 ($result) must be of type mysqli_result, bool given in D:\wwwroot\guangming.2021.joyweb.org\include\mysql.php:9 Stack trace: #0 D:\wwwroot\guangming.2021.joyweb.org\include\mysql.php(9): mysqli_num_rows(true) #1 D:\wwwroot\guangming.2021.joyweb.org\include\syModel.php(124): db_mysql->getArray('insert into joy...') #2 D:\wwwroot\guangming.2021.joyweb.org\source\article.php(187): syModel->findSql('insert into joy...') #3 D:\wwwroot\guangming.2021.joyweb.org\include\Functions.php(16): article->hitst() #4 D:\wwwroot\guangming.2021.joyweb.org\index.php(5): spRun() #5 {main} thrown in D:\wwwroot\guangming.2021.joyweb.org\include\mysql.php on line 9