使用OO-PHP进行简单登录[关闭]

Question

I'm trying just to validate, on submitting the form that the username and password aren't empty.

Form:

<form action="usercheck.php" method="post">
    User: <input type="text" name="username" maxlength="10" />
    Pass: <input type="password" name="password" maxlength="10" />      
    <input type="submit" value="Submit" />
</form>

usercheck.php

<?php

class Vuln{

    public $username = $_POST['username'];
    public $password = $_POST['password'];

    public function ShowErrors(){
        if($this->username == '' || $this->password == ''){
            return 'username or password field blank';  
        }
        else{
            echo stripslashes('we\'re good');
        }   
    }

    $entered = new Vuln;
    echo $entered->ShowErrors();

}


?>

When I test, it says:

Parse error: syntax error, unexpected T_VARIABLE, expecting T_FUNCTION on line :

    $entered = new Vuln;

Answer 1

You can't have code inside a class definition like that

    class Vuln {
       //> Your class definition
    }

    //> Outside of the class

    $entered = new Vuln;
    echo $entered->ShowErrors();

I strongly suggest you to read all the basics from PHP Doc