Mark Errington, King City, Oregon - Calculating Ratings for Horse Racing
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Calculating Ratings for Horse Racing

Rating = (W + P/3 + S/6) x E/850

W = Number of Wins
P = Number of Places
S = Number of Shows
R = Number of Races
E = Amount of Earnings in Dollars

Here is an example of how you can create a form in PHP to calculate the rating for a horse based on the inputs provided by the user:

<!DOCTYPE html>
<html>
<head>
	<title>Horse Rating Calculator</title>
</head>
<body>
	<h1>Horse Rating Calculator</h1>
	<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
		<label for="wins">Number of Wins:</label>
		<input type="number" id="wins" name="wins" min="0"><br><br>
		<label for="places">Number of Places:</label>
		<input type="number" id="places" name="places" min="0"><br><br>
		<label for="shows">Number of Shows:</label>
		<input type="number" id="shows" name="shows" min="0"><br><br>
		<label for="earnings">Amount of Earnings:</label>
		<input type="number" id="earnings" name="earnings" min="0"><br><br>
		<label for="races">Number of Races:</label>
		<input type="number" id="races" name="races" min="0"><br><br>
		<input type="submit" value="Calculate Rating">
	</form>
	<?php
		// Check if the form has been submitted
		if ($_SERVER["REQUEST_METHOD"] == "POST") {
			// Get the values from the form
			$wins = $_POST["wins"];
			$places = $_POST["places"];
			$shows = $_POST["shows"];
			$earnings = $_POST["earnings"];
			$races = $_POST["races"];

			// Calculate the rating
			$rating = ($wins + ($places / 3) + ($shows / 6)) * ($earnings / 1000) * ($races / 10);

			// Display the result
			echo "<p>The horse's rating is: " . $rating . "</p>";
		}
	?>
</body>
</html>

This code creates a form that asks the user to input the number of wins, places, shows, earnings, and races for a horse. When the user submits the form, the values are passed to the server using the POST method. The PHP code then calculates the rating using the equation you provided and displays the result below the form.

The htmlspecialchars function is used to prevent cross-site scripting (XSS) attacks by converting special characters to their HTML entities.

Note that this is just an example and you should customize it to fit your specific needs.

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