Getting errormessage only if using function in MYSQL - php

Question

I made a function to fetch a column and them render each row as a li.
But I am getting "Errormessage:" as result. I tried it without functon and that works fine.
Please help.
$nkFetch = function($link){
$table1Query = "SELECT * FROM table1";
$res = mysqli_query($link, $table1Query);
if (!mysqli_query($link, $table1Query)) {
printf("Errormessage: %s\n", mysqli_error($link));
}
$table1 = array();
while ($row = mysqli_fetch_array($res)){
$table1[] = $row;
}
shuffle($table1);
foreach( $table1 as $row ){
echo "<li>" . $row['WORD'] . "</li>";
}
}

Answer 1

Update
Given that you're using a lambda-style function (instance of Closure), and wish to use a globally available variable $link, you should write:
$nkFetch = function () use ($link)
{
//code here. $link is available
};
$nkFetch();
//or
$nkFetch = function ($link)
{
//code here
};
$nkFetch($link);//<-- pass mysqli here
Read the manual on anonymous functions
Very well, I'll bite.
You say this is a function. If so: are you passing the $con connection variable as an argument
Have you made sure the connection (mysql_connect call) was successful
As an asside: mysql_free_result really is a tad pointless if that's the last statement in your function. The resultset should be freed once all function variables go out of scope
Now, here's what your code should look like if you want to use that deprecated extension (BTW: try updating your PHP version, and set your error level to E_STRICT | E_ALL, you should see deprecated notices).
Assuming this is indeed a bona-fide function:
function getList($con)
{
if (!is_resource($con))
{//check if $con is a resource, if not... quit
echo '$con is not a resource!', PHP_EOL;
return;
}
$res = mysql_query('SELECT * FROM table1', $con);
if (!$res)
{//query failed
echo 'Query failed: ', mysql_error($con);
return;
}
while($row = mysql_fetch_assoc($res))
{//echo here already
echo '<li>', $row['WORD'], '</li>';
}
}
//call like so:
$dbConnection = mysql_connect('127.0.0.1', 'user', 'pass');//pass your params here, of course
if (!$dbConnection) exit(mysql_error());
getList($dbConnection);
A more modern way of writing this would be:
$db = new PDO('127.0.0.1', 'user', 'pass');
$res = $db->query('SELECT * FROM table1');
while($row = $res->fetch(PDO::FETCH_ASSOC))
{
echo '<li>', $row['WORD'], '</li>';
}
Check the PDO documentation