SQL错误提示

系统:PHP 5.6.40 (Linux)
sql错误:SELECT * FROM sky_options where id= LIMIT 1 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'LIMIT 1' at line 1
/www/wwwroot/xyo2o.deitui.com/skymvc/class/cls_pdo.php:286行,调用方法:query
/www/wwwroot/xyo2o.deitui.com/skymvc/class/cls_pdo.php:218行,调用方法:getRow
/www/wwwroot/xyo2o.deitui.com/skymvc/class/cls_model.php:142行,调用方法:selectRow
/www/wwwroot/xyo2o.deitui.com/source/index/job.ctrl.php:33行,调用方法:selectRow
/www/wwwroot/xyo2o.deitui.com/skymvc/skymvc.php:343行,调用方法:onDefault
/www/wwwroot/xyo2o.deitui.com/index.php:54行,调用方法:require
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