校验nickname username nickname去掉两段的空格

app/db/user.php

@@ -101,10 +101,17 @@ class User extends Table
 			return;	
 		}
 		//验证用户名有效性
+		$data["username"] = trim($data["username"]);
 		if(!$this->isValidUsername($data["username"])){
 			echo json_encode($this->result, JSON_UNESCAPED_UNICODE);
 			return;
 		}
+		//验证昵称有效性
+		$data["nickname"] = trim($data["nickname"]);
+		if(!$this->isValidNickName($data["nickname"])){
+			echo json_encode($this->result, JSON_UNESCAPED_UNICODE);
+			return;
+		}
 		$isExist = $this->medoo->has($this->table,["username"=>$data["username"]]);
 		if(!$isExist){
 			if(!$this->isValidEmail($data["email"])){
@@ -313,6 +320,19 @@ class User extends Table
 		}
 		return true;
 	}
+	private function isValidNickName($nickname){
+		if(mb_strlen($username,"UTF-8")>32){
+			$this->result["ok"]=false;
+			$this->result["message"]="::nickname_too_long";
+			return false;
+		}
+		if(mb_strlen($username,"UTF-8")<1){
+			$this->result["ok"]=false;
+			$this->result["message"]="::nicknamename_too_short";
+			return false;
+		}
+		return true;
+	}
 	private function isValidEmail($email){	
 		$isValid = filter_var($email, FILTER_VALIDATE_EMAIL);
 		if($isValid===false){