converting single PHP mySQL update into mass MySQL update - mysql

Question

Ok so thank you for the feedback until now, with it I have got to the following point:
<?php
$servername = "localhost";
$username = "user";
$password = "pass";
$dbname = "madtags";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = mysqli_query($conn, "SELECT id from users");
$userinfo = array();
while ($row_user = $sql->fetch_assoc())
$userinfo[] = $row_user;
foreach ($userinfo as $user) {
$url = "http://www.pdga.com/player/".$user['id'];
$ch = curl_init();
$timeout = 5;
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$html = curl_exec($ch);
curl_close($ch);
$dom = new DOMDocument();
#$dom->loadHTML($html);
$xpath = new DomXPath($dom);
$class = 'current-rating';
$divs = $xpath->query("//*[contains(concat(' ', normalize-space(#class), ' '), ' $class ')]");
foreach($divs as $div) {
preg_match('/Current Rating:\s+(\d+)/', $div->nodeValue, $results);
}
$sql = "UPDATE users SET rating=$results[1] WHERE id=id";
if ($conn->query($sql) === TRUE) {
echo "Record updated successfully <br>";
} else {
echo "Error updating record <br> " . $conn->error;
}
$conn->close();
}
?>
By changing the "where" command on row 45 "$sql = "UPDATE users SET rating=$results[1] WHERE id=id";", i can get it to run properly (this is a test array of 6 rows)
Record updated successfully
Error updating record
Error updating record
Error updating record
Error updating record
Error updating record
But I guess I am defining something wrong as it is not able to update the record after the first run.
Ideas?
original post
I am creating a competition website, parallel to a rating system used by a worldwide website. So basically I have created the code below to call for a rating from the website.
Since creating this, the member base has ballooned greatly. So creating this code individually for each member is not useful anymore. So I would need to develop this to basically run for each row in my MySQL table (this code is run every 2 weeks approx.)
<?php
$servername = "localhost";
$username = "user";
$password = "pass";
$dbname = "madtags";
$url = "http://www.pdga.com/player/***ID***";
$ch = curl_init();
$timeout = 5;
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$html = curl_exec($ch);
curl_close($ch);
$dom = new DOMDocument();
#$dom->loadHTML($html);
$xpath = new DomXPath($dom);
$class = 'current-rating';
$divs = $xpath->query("//*[contains(concat(' ', normalize-space(#class), ' '), ' $class ')]");
foreach($divs as $div) {
preg_match('/Current Rating:\s+(\d+)/', $div->nodeValue, $results);
}
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "UPDATE users SET rating=$results[1] WHERE id=***ID***";
if ($conn->query($sql) === TRUE) {
echo "Record updated successfully";
} else {
echo "Error updating record: " . $conn->error;
}
$conn->close();
?>
So basically variable for each individual line are the parts marked ID ($url and $sql update).
Further, the table currently has 4 columns >> id, name, tag, rating
Thanks a bunch ahead of time.