YII常见报错笔记
报错返回的代码如下:
<pre>PHP Notice 'yii\base\ErrorException' with message 'Uninitialized string offset: 0' in /my/test/project/iot/vendor/yiisoft/yii2/base/Model.php:778 Stack trace: #0 /my/test/project/iot/vendor/yiisoft/yii2/base/Model.php(778): yii\base\ErrorHandler->handleError(8, 'Uninitialized s...', '/my/test/projec...', 778, Array) #1 /my/test/project/iot/vendor/yiisoft/yii2/base/Model.php(354): yii\base\Model->activeAttributes() #2 /my/test/project/iot/vendor/yiisoft/yii2/db/ActiveRecord.php(455): yii\base\Model->validate(NULL) #3 /my/test/project/iot/vendor/yiisoft/yii2/db/BaseActiveRecord.php(635): yii\db\ActiveRecord->insert(true, NULL) #4 /my/test/project/iot/common/models/Order.php(243): yii\db\BaseActiveRecord->save() #5 /my/test/project/iot/frontend/controllers/OrderController.php(219): common\models\Order->createOrder(Array) #6 [internal function]: frontend\controllers\OrderController->actionOrderoncecreate() #7 /my/test/project/iot/vendor/yiisoft/yii2/base/InlineAction.php(57): call_user_func_array(Array, Array) #8 /my/test/project/iot/vendor/yiisoft/yii2/base/Controller.php(156): yii\base\InlineAction->runWithParams(Array) #9 /my/test/project/iot/vendor/yiisoft/yii2/base/Module.php(523): yii\base\Controller->runAction('orderoncecreate', Array) #10 /my/test/project/iot/vendor/yiisoft/yii2/web/Application.php(102): yii\base\Module->runAction('order/orderonce...', Array) #11 /my/test/project/iot/vendor/yiisoft/yii2/base/Application.php(380): yii\web\Application->handleRequest(Object(yii\web\Request)) #12 /my/test/project/iot/frontend/web/index.php(18): yii\base\Application->run() #13 {main}</pre>
原因:这里明显提示是模型Model出错,所以根据报错信息分析。
第一步:找到相应调用的模型检查,
第二步:查看报错提示(这个错误是:Uninitialized string offset: 0 未初始化字符串偏移量:0)。
最后分析上面两步得出,我在模型的验证规则里定义了一个空字段(‘’),如下图所示
因为yii的验证规则是对写入每个字段都做验证(没有做空判断),我数据表又没有这个字段,所以就会报错。
结论:如果报错代码类似以上的,检查下自己的验证规则字段是否有和数据表不一样的字段。
错误代码分析总结: