model->save() Not Working In Yii2

Question

Previously, I was not using $model->save() function for inserting or updating any data. I was simply using createCommand() to execute query and

Answer 1

if your column type in your table is "integer" and your data is "string" you may see tis error.You should check your data type and try again.

I suppose that your column type is integer, you should write the following code:

$model->created_at=time();//1499722038
$model->save(); 

but your column type is string, you should write the following code:

$model->created_at=date('d/m/Y');//11/07/2017
$model->save();