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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 ') LIMIT 1' at line 1 [ SQL语句 ] : SELECT `parent_id` FROM `test_article_cat` WHERE ( cat_id= ) LIMIT 1

错误位置

FILE: /var/www/html/gdbdsy.com/ThinkPHP/Library/Think/Db/Driver.class.php  LINE: 350

TRACE

#0 /var/www/html/gdbdsy.com/ThinkPHP/Library/Think/Db/Driver.class.php(350): E('1064:You have a...')
#1 /var/www/html/gdbdsy.com/ThinkPHP/Library/Think/Db/Driver.class.php(180): Think\Db\Driver->error()
#2 /var/www/html/gdbdsy.com/ThinkPHP/Library/Think/Db/Driver.class.php(946): Think\Db\Driver->query('SELECT `parent_...', false)
#3 /var/www/html/gdbdsy.com/ThinkPHP/Library/Think/Model.class.php(759): Think\Db\Driver->select(Array)
#4 /var/www/html/gdbdsy.com/Application/Home/Model/ArticleCatModel.class.php(42): Think\Model->find()
#5 /var/www/html/gdbdsy.com/Application/Home/Controller/AboutController.class.php(39): Home\Model\ArticleCatModel->parentid('')
#6 [internal function]: Home\Controller\AboutController->index()
#7 /var/www/html/gdbdsy.com/ThinkPHP/Library/Think/App.class.php(173): ReflectionMethod->invoke(Object(Home\Controller\AboutController))
#8 /var/www/html/gdbdsy.com/ThinkPHP/Library/Think/App.class.php(110): Think\App::invokeAction(Object(Home\Controller\AboutController), 'index')
#9 /var/www/html/gdbdsy.com/ThinkPHP/Library/Think/App.class.php(204): Think\App::exec()
#10 /var/www/html/gdbdsy.com/ThinkPHP/Library/Think/Think.class.php(120): Think\App::run()
#11 /var/www/html/gdbdsy.com/ThinkPHP/ThinkPHP.php(97): Think\Think::start()
#12 /var/www/html/gdbdsy.com/index.php(54): require('/var/www/html/g...')
#13 {main}