cant find anything wrong with it but it still throws errors

[Danny620]

<?php 

//require_once ('facebook/client/facebook.php');
	require_once ('settings/mysqli.php');

	$appapikey = 'xxxxxxxxxxxxxxxxx';

		$appsecret = 'xxxxxxxxxxxxxxx';

//$facebook = new Facebook($appapikey, $appsecret);
$fb_user = '2332'; //$facebook->require_login();

class existences {

function new_user($fb_user) {
    
$q = "SELECT uid FROM members WHERE uid='$fb_user'";
	$r = mysqli_query($dbc, $q);

	if (mysqli_num_rows($r) == 0) {

$q = "INSERT INTO members (uid) VALUES ('$fb_user')";
		$r = mysqli_query ($dbc, $q) or trigger_error("Query: $q\n<br />MySQL Error: " . mysqli_error($dbc));

		if (mysqli_affected_rows($dbc) == 1) { // If it ran OK

		return true;

		}else{

		return false;

}
}
}
}


$new_user = new existences();
$new_user->new_user($fb_user);

?>

errors give

Warning: mysqli_query() expects parameter 1 to be mysqli, null given in C:\xampp\htdocs\settings.php on line 18

 

Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, null given in C:\xampp\htdocs\settings.php on line 20

 

Warning: mysqli_query() expects parameter 1 to be mysqli, null given in C:\xampp\htdocs\settings.php on line 23

 

Warning: mysqli_error() expects parameter 1 to be mysqli, null given in C:\xampp\htdocs\settings.php on line 23

 

Notice: Query: INSERT INTO members (uid) VALUES ('2332')

MySQL Error: in C:\xampp\htdocs\settings.php on line 23

 

Warning: mysqli_affected_rows() expects parameter 1 to be mysqli, null given in C:\xampp\htdocs\settings.php on line 25

 

 

[sasa]

you didn't connect to database

you error is in 'mysqli.php'

[Danny620]

still not working but i have included the mysqli file

 

<?php 

//require_once ('facebook/client/facebook.php');
DEFINE ('DB_USER', 'root');
DEFINE ('DB_PASSWORD', 'x');
DEFINE ('DB_HOST', 'localhost');
DEFINE ('DB_NAME', 'web160-fb-app');

// Make the connection:
$dbc = mysqli_connect (DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);

if (!$dbc) {
trigger_error ('Could not connect to MySQL: ' . mysqli_connect_error() );
}

	$appapikey = '821407345eebe4a9eeddf0c57999e47a';

		$appsecret = '6524a8d5c174530ab7a57b5bf3884e9e';

//$facebook = new Facebook($appapikey, $appsecret);
$fb_user = '2332'; //$facebook->require_login();

class existences {

function new_user($fb_user) {
    
$q = "SELECT uid FROM members WHERE uid='$fb_user'";
	$r = mysqli_query($dbc, $q);

	if (mysqli_num_rows($r) == 0) {

$q = "INSERT INTO members (uid) VALUES ('$fb_user')";
		$r = mysqli_query ($dbc, $q) or trigger_error("Query: $q\n<br />MySQL Error: " . mysqli_error($dbc));

		if (mysqli_affected_rows($dbc) == 1) { // If it ran OK

		return true;

		}else{

		return false;

}
}
}
}


$new_user = new existences();
$new_user->new_user($fb_user);

?>

[PFMaBiSmAd]

Variable scope in classes and class methods works exactly the same way as variable scope in functions. Your $dbc variable does not exist inside your class or your class functions unless you pass it in and make it available in the correct scope.

 

I recommend passing $dbc into your class when you create the instance of your class -

$new_user = new existences($dbc);

 

Then have your clsss constructor save it into a class variable -

   private $dbc;
   
   function __construct($dbc) {
       $this->dbc = $dbc;
   }

 

Then reference it inside of your class methods using $this->dbc syntax.