Class variable is null when I try to access it in PHP

Question

Alright, this is my main code:

require \"checkpassword.php\";
require \"mysqllogininfo.php\";

# Validate password
if (!validatePassword($_GET[\"password\"])         


        

Answer 1

No where in your MySQLLoginInfo constructor do you actually set the class variables, only the local function variables:

#Loop through lines
while (($line = fgets($handle)) !== false) {
    if ($i === 0)
        $this->host = $line; // vs $host = $line;
    // ...
}

I refer you to the documentation on Class Properties:

Within class methods non-static properties may be accessed by using -> (Object Operator): $this->property (where property is the name of the property). Static properties are accessed by using the :: (Double Colon): self::$property. See Static Keyword for more information on the difference between static and non-static properties.