php - fatal error : Call to undefined function empty()

Question

知道为什么我会收到这个奇怪的错误吗？ “ fatal error :调用未定义的函数 empty()”

function newpart($name,$country,$bday_day,$bday_month,$bday_year,$gender,$pass1,$pass2,$email,$option1,$secondOption1,$secondOptionLevel1){ 


        $this->name = $name;
        $this->country = $country;
        $this->bday_day = $bday_day;
        $this->bday_month = $bday_month;
        $this->bday_year = $bday_year;
        $this->gender = $gender;
        $this->pass1 = $pass1;
        $this->pass2 = $pass2;
        $this->email = $email;
        $this->option1 = $option1;
        $this->secondOption1 = $secondOption1;
        $this->secondOptionLevel1 = $secondOptionLevel1;


        if( empty($this->name) || empty($this->pass1) ){
            $this->errorCount++;
        }



    }

Answer 1

我有同样的 fatal error ...

在“空”这个词之前，我确实在编辑器中按了 alt + space 而不是 space 。有一个假的空白。