Use of request in YII2

Yii2 has done a lot to process request requests. Take notes here.

1. Normal get and PST requests

$request = Yii:: $app->request; $get = $request->get ();   Equivalent to: $get = $_get; $id = $request->get (' id '); Equivalent to: $id = Isset ($_get[' id ")?   $_get[' ID ']: null; $id = $request->get (' id ', 1); Equivalent to: $id = Isset ($_get[' id ")? $_get[' id ']: 1;//added default value $post = $request->post ();   Equivalent to: $post = $_post; $name = $request->post (' name '); Equivalent to: $name = isset ($_post[' name '])?   $_post[' name ']: null; $name = $request->post (' name ', '); Equivalent to: $name = isset ($_post[' name '])? $_post[' name ': ';//Added default value

2. Judging Request Properties

$request = Yii:: $app->request;if ($request->isajax) {//Determines whether the AJAX request}if ($request->isget) {//Determines whether a GET request}if ($request->ispost) {//Determine if the POST request}if ($request->isput) {//Determine whether a put request}

3. Get Request header information

$headers is an object of yii\web\headercollection $headers = Yii:: $app->request->headers;//Return Header headers all information $ Accept = $headers->get (' Accept '), if ($headers->has (' user-agent ')) {//Get user-agent}

4. Get User Client Information

$userHost = Yii:: $app->request->userhost; $userIP = Yii:: $app->request->userip;

Use of request in YII2