Wednesday 18 September 2019

php - Issue with "Call to member function on non-object"

Answer


Answer




I'm not seeing the issue here...



Error: "Fatal error: Call to a member function bind_param() on a non-object in C:\wamp\www\In Progress\mtg\index.php on line 64"



$stmt = $mysqli -> prepare("INSERT INTO `" . $database . "`.`users` VALUES(NULL, ?, ?, 0);");
echo $mysqli -> error;
$stmt -> bind_param('ss', $username, $password);

$stmt -> execute();
$stmt -> close();


This is the offending block of code and the lines around it. The only thing I can think is that maybe $mysqli isn't being correctly defined in this one instance? $mysqli and $database are defined in a required file and all other functions that reference them for prepared statements work fine.



Is there something simple I'm missing here?


Answer



Your $stmt is probably undefined because the previous line (prepare) failed.
It's basically calling bind_param() on a failed prepared statement, which happens to be an error or something.



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