This example describes the implementation of YII2 using AJAX to return JSON. Share to everyone for your reference, specific as follows:
Public Function Actionajax ()
{
if (Isset (Yii:: $app->request->post (' test ')) {
$test = "Ajax worked!";
//Do your query stuff here
} else{
$test = "Ajax failed";
Do your query stuff here
}
//return Json return
\yii\helpers\json::encode ($test);
More about Yii related content readers can view the site topics: "Yii framework Introduction and common skills Summary", "PHP Excellent Development Framework Summary", "Smarty Template Primer Tutorial", "PHP date and Time usage summary", "PHP object-oriented Programming Program", " Summary of PHP string usage, Introduction to PHP+MYSQL database operations, and a summary of PHP common database operations Tips
I hope this article will help you with the PHP program design based on the YII framework.