Simple PHP MySQLi script fails to run - php

Question

I have this same query running on other PHP scripts, but it now won't work. I have troubleshooted for eight hours and frustrated like no one knows.
<?php
$con = mysqli_connect("localhost","dave1_guest","password1")
or die('Could not connect: ' . mysqli_error());
mysqli_select_db("dave1_main",$con) or die(mysqli_error());
$result = mysqli_query("SELECT * FROM Inventory limit 100");
while($row = mysqli_fetch_array($result)) {
echo $row['ItemNumber'];
}
mysqli_close($con);
?>
I tried running the query on PhpMyAdmin, and it returns 0 results! This is impossible. When I open the table with PhpMyAdmin, it opens and shows thousands of rows!
When I run the query that PhpMyAdmin uses, it works. But when I add a constraint like WHERE StockNumber='13922', it does not.
Again, the stupid thing is that this script works on other PHP pages on my site.

Answer 1

You are fetching the data twice. Remove this line $row = mysqli_fetch_array($result);

Answer 2

I do not know what your problem, so I do not see the exact error, but I'll try a little help.
First of all:
$con = mysqli_connect("localhost","dave1_guest","password1") or die('Could not connect: ' . mysql_error());
mysqli_select_db("dave1_main",$con) or die(mysql_error());
$result = mysqli_query("SELECT * FROM Inventory LIMIT 100");
$row = mysqli_fetch_assoc($result);
print_r($row);
while($row)
{
echo $row['ItemNumber'];
}
mysqli_close($con);
Try this!