PHP & MySQLi Insert Query Failed [duplicate] - php

Question

This question already has an answer here:
Syntax error due to using a reserved word as a table or column name in MySQL
(1 answer)
Closed 8 years ago.
I'm having a few issues with MySQLi queries. I have read the docs for PHP several times and have encountered the same error. I am new to MySQLi but have used MySQL.
Here is the error I am receiving after submitting the post data:
[22-Mar-2014 23:41:17 UTC] PHP Fatal error: Call to a member function bind_param() on a non-object in /home/ponypwna/public_html/Changelist/cpanel.php on line 32
Here is my code for overviewing:
<?php
$MysqlUsername = "*****";
$MysqlPassword = "*****";
$MysqlHostname = "localhost";
$MysqlDatabase = "ponypwna_mane";
/* Establishing Connection here */
$mysqli = new mysqli($MysqlHostname, $MysqlUsername, $MysqlPassword, $MysqlDatabase) or die("Mysql Error: " . $mysqli->error);
//Did we post it?
if (isset($_POST['insertChange'])) {
#Fetching Post Data
$change = $_POST['change'];
$state = $_POST['state'];
$appliesto = $_POST['appliesto'];
$progress = $_POST['progress'];
$completiondate = $_POST['completiondate'];
$contributor = $_POST['contributor'];
#Preparing Query
$insertChange = $mysqli->prepare("INSERT INTO changelist (change, state, appliesto, progress, completiondate, contributor) VALUES (?, ?, ?, ?, ?, ?)");
$insertChange->bind_param('sssiss', $change, $state, $appliesto, $progress, $completiondate, $contributor);
#Executing Prepared Query
$insertChange->execute();
#Close statement and function
$insertChange->close();
}
?>

Answer 1

We are all dumb :)
Upon second look, I seem to be receiving this error from MySQL
(after adding a few debugging tools I was able to see this error): You
have an error in your SQL syntax; check the manual that corresponds to
your MySQL server version for the right syntax to use near 'change,
state, appliesto, progress, completiondate, contributor) VALUES (?, ?,
?' at line 1
"change" is a reserved keyword in MYSQL. https://dev.mysql.com/doc/refman/5.5/en/reserved-words.html
Add `` arround change (it is a good idea to wrap every column name - there are various reserved keywords):
$insertChange = $mysqli->prepare("INSERT INTO changelist (`change`, state, appliesto, progress, completiondate, contributor) VALUES (?, ?, ?, ?, ?, ?)");

Answer 2

New Answer
It seems the error is being caused due to an error in your sql syntax.
When you do:
$insertChange = $mysqli->prepare("INSERT INTO changelist (change, state, appliesto, progress, completiondate, contributor) VALUES (?, ?, ?, ?, ?, ?)");
and when here is an error in the syntax, $insertChange is set to false and so it has no method called bind_param() as per the documentation here
Return Values
mysqli_prepare() returns a statement object or FALSE if an error occurred.
So a fix would be to copy-past the sql into an phpMyAdmin or whatever and replace the ? with actual data and run it to see if it works. Maybe one of your columns are missing, spelling error?