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Help with javascript function return data on page

AJM2

By AJM2
in PHP Coding Help

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AJM2 Member

AJM2

Posted
Posted

I am having trouble getting this javascript to function. It is supposed to take the compass heading and return a character based on the heading. N, S, E, W... 

<script>
	function degToCompass(num) {
    var val = Math.floor((num / 22.5) + 0.5);
    var arr = ["N", "NNE", "NE", "ENE", "E", "ESE", "SE", "SSE", "S", "SSW", "SW", "WSW", "W", "WNW", "NW", "NNW"];
    return arr[(val % 16)];
}
</script>

I have the function in the header.php page and include it at the top of this page 

<?php 
include_once("dbconnect.php");
include_once("header.php");

//error dump for testing
error_reporting(E_ALL);
ini_set('display_errors', '1');
?>


<?php 

// Check connection
if ($conn->connect_error) {
  die("Connection failed: " . $conn->connect_error);
}
//echo "Connected successfully";
?>

<?php 
//$today = strtotime('today midnight');
//$yesterday = date('d.m.Y', strtotime("-1 days"));

$sql = "
SELECT
avg(winddir) as avgwinddir
, MAX(temp) as maxtemp
, MIN(temp) as mintemp
, AVG(temp) as avgtemp
, MAX(dewpoint) as maxdewpoint
, MIN(dewpoint) as mindewpoint
, AVG(dewpoint) as avgdewpoint
, MAX(humidity) as maxhumidity
, MIN(humidity) as minhumidity
, AVG(humidity) as avghumidity
, MAX(dailyrain) as maxdailyrain
, MIN(dailyrain) as mindailyrain
, AVG(dailyrain) as avgdailyrain
, MAX(windspeed) as maxwindspeed
, MIN(windspeed) as minwindspeed
, AVG(windspeed) as avgwindspeed
, MAX(gust) as maxgust
, MIN(gust) as mingust
, AVG(gust) as avggust
, MAX(stationbarometer) as maxstationbarometer
, MIN(stationbarometer) as minstationbarometer
, AVG(stationbarometer) as avgstationbarometer
FROM weather_data
WHERE DateTime between '2022-01-26 00:00:00.000000' and '2022-01-27 00:00:00.000000'
LIMIT 1;
";
$result = $conn->query($sql);

if ($result->num_rows > 0) {

echo "
		<table border=1 width=100%>
		<tr>
			<td colspan=2 align=center><b>Summary Weather Data</b></td>
		</tr>
		<tr>
		<td colspan=2 align=center></td>
		</tr>
		<tr>
			<td align=center>
					<table border=1 width=90%>
					<th>&#32;</th><th>High</th><th>Low</th><th>Average</th>
					</tr>";
						//output data of each row
						while($row = $result->fetch_assoc()) { 
					echo "<tr>
					<td><b>Temperature</b></td><td>".$row["maxtemp"]. "</td><td>".$row["mintemp"]. "</td><td>".$row["avgtemp"]. "</td>
					</tr>
					<tr>
					<td><b>Dew Point</b></td><td>".$row["maxdewpoint"]. "</td><td>".$row["mindewpoint"]. "</td><td>".$row["avgdewpoint"]. "</td>
					</tr>
					<tr>
					<td><b>Humidity</b></td><td>".$row["maxhumidity"]. "</td><td>".$row["minhumidity"]. "</td><td>".$row["avghumidity"]. "</td>
					</tr>
					<tr>
					<td><b>Precipitation</b></td><td>".$row["maxdailyrain"]. "</td><td>".$row["maxdailyrain"]. "</td><td>".$row["avgdailyrain"]. "</td>
					</tr>
				</table>	
			</td>
			<td align=center>
				<table border=1 width=90%>
					<tr>
					<th> </th><th>High</th><th>Low</th><th>Average</th>
					</tr>
					<tr>
					<td><b>Wind Speed</b></td><td>".$row["maxwindspeed"]. "</td><td>".$row["minwindspeed"]. "</td><td>".$row["avgwindspeed"]. "</td>
					</tr>
					<tr>
					<td><b>Wind Gust</b></td><td>".$row["maxgust"]. "</td><td>==</td><td>".$row["avggust"]. "</td>
					</tr>
					<tr>
					<td><b>Wind Direction</b></td><td>--</td><td>' <script>degToCompass(.$row["avgwinddir"].);</script>';</td><td>".$row["avgwinddir"]. "</td>
					</tr> 
					<tr>
					<td><b>Barometer</b></td><td>".$row["maxstationbarometer"]. "</td><td>".$row["minstationbarometer"]. "</td><td>".$row["avgstationbarometer"]. "</td>
					</tr>
				</table>
			</td>
		</tr>";
			}
echo "</table>";
} else {
 echo "0 results";
}


$conn->close();

?>

I can't figure out why the function won't display. I even broke it down to a basic page with only the function and trying to output on the page and nothing returns but "This is a test." 

<!DOCTYPE html>
<html>
<head>
<script>
	function degToCompass(num) {
    var val = Math.floor((num / 22.5) + 0.5);
    var arr = ["N", "NNE", "NE", "ENE", "E", "ESE", "SE", "SSE", "S", "SSW", "SW", "WSW", "W", "WNW", "NW", "NNW"];
    return arr[(val % 16)];
}
</script>	
</head>
<body>


<?php

echo '<script type="text/javascript"> degToCompass(180); </script>'; 
echo  "This is a test."

?>

</body>
</html>

This is the field on the page I am trying to have the function display

Any pointers would be appreciated.

 

javascript_error.png

AJM2 Member

AJM2

Posted
  • Author
Posted

Barand,

Thanks for the tip. I did some research and converted the javascript function to a php function as you suggested.

It's working now! 

function degOfCompass($num) {
    $val = floor(($num / 22.5) + 0.5);
    $arr = ["N", "NNE", "NE", "ENE", "E", "ESE", "SE", "SSE", "S", "SSW", "SW", "WSW", "W", "WNW", "NW", "NNW"];
    return $arr[($val % 16)];
	//return $num;
}

 

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