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airqualitymodule.php
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<body>
<?php include('shared.php');include('common.php');
// PURPLE AIR additional conversion script included by Andrew Billits 24 April 2018
function pm25_to_aqi($pm25){
if ($pm25 > 500.5) {
$aqi = 500;
} else if ($pm25 > 350.5 && $pm25 <= 500.5 ) {
$aqi = map($pm25, 350.5, 500.5, 400, 500);
} else if ($pm25 > 250.5 && $pm25 <= 350.5 ) {
$aqi = map($pm25, 250.5, 350.5, 300, 400);
} else if ($pm25 > 150.5 && $pm25 <= 250.5 ) {
$aqi = map($pm25, 150.5, 250.5, 200, 300);
} else if ($pm25 > 55.5 && $pm25 <= 150.5 ) {
$aqi = map($pm25, 55.5, 150.5, 150, 200);
} else if ($pm25 > 35.5 && $pm25 <= 55.5 ) {
$aqi = map($pm25, 35.5, 55.5, 100, 150);
} else if ($pm25 > 12 && $pm25 <= 35.5 ) {
$aqi = map($pm25, 12, 35.5, 50, 100);
} else if ($pm25 > 0 && $pm25 <= 12 ) {
$aqi = map($pm25, 0, 12, 0, 50);
}
return $aqi;
}
function map($value, $fromLow, $fromHigh, $toLow, $toHigh){
$fromRange = $fromHigh - $fromLow;
$toRange = $toHigh - $toLow;
$scaleFactor = $toRange / $fromRange;
// Re-zero the value within the from range
$tmpValue = $value - $fromLow;
// Rescale the value to the to range
$tmpValue *= $scaleFactor;
// Re-zero back to the to range
return $tmpValue + $toLow;
}
$json_string = file_get_contents("jsondata/purpleair.txt");
$parsed_json = json_decode($json_string);
//$aqiweather["aqi"] = $parsed_json->{'results'}[1]->{'PM2_5Value'};
$aqiweather["aqi"] = number_format(pm25_to_aqi(($parsed_json->{'results'}[0]->{'PM2_5Value'} + $parsed_json->{'results'}[1]->{'PM2_5Value'}) / 2),1);
$aqiweather["aqiozone"] = 'N/A';
$aqiweather["time2"] = $parsed_json->{'results'}[1]->{'LastSeen'};
$aqiweather["time"] = date($timeFormat,$aqiweather["time2"]);
$aqiweather["city"] = $parsed_json->{'results'}[0]->{'ID'};
$aqiweather["label"] = $parsed_json->{'results'}[0]->{'Label'};
$a="";if($aqiweather["aqi"]==$a){$aqiweather["aqi"] = "0" ;}
?>
<div class="updatedtime"><span><?php if(file_exists($json_string)&&time()- filemtime($json_string)>300)echo $offline. '<offline> Offline </offline>';else echo $online." ".$aqiweather["time"];?></div>
<div class="tempconverter2">
<?php //WEATHER34 AIR QAULITY SVG
if ($aqiweather["aqi"]>200){echo "<div class=tempconvertercirclepurple>PM2.5"; }
else if ($aqiweather["aqi"]>150){echo "<div class=tempconvertercirclered>PM2.5" ; }
else if ($aqiweather["aqi"]>100){echo "<div class=tempconvertercircleorange>PM2.5" ; }
else if ($aqiweather["aqi"]>50){echo "<div class=tempconvertercircleyellow>PM2.5" ; }
else if ($aqiweather["aqi"]>=0){echo "<div class=tempconvertercirclegreen>PM2.5" ; }
?>
</div></div></div>
<div class="airqualitymoduleposition">
<div class="tempcontainer">
<?php //WEATHER34 AIR QAULITY SVG
if ($aqiweather["aqi"]>300){echo "<div class=air300><img src='css/aqi/hazair.svg?ver=1.4' width='110px' height='100px' alt='weather34 hazardous air quality' title='weather34 hazardous air quality' "; }
else if ($aqiweather["aqi"]>200){echo "<div class=air200><img src='css/aqi/vhair.svg?ver=1.4' width='110px' height='100px' alt='weather34 very unhealthy air quality' title='weather34 very unhealthy air quality'" ; }
else if ($aqiweather["aqi"]>150){echo "<div class=air150><img src='css/aqi/uhair.svg?ver=1.4' width='110px' height='100px' alt='weather34 unhealthy air quality' title='weather34 unhealthy air quality'" ; }
else if ($aqiweather["aqi"]>100){echo "<div class=air100><img src='css/aqi/uhfsair.svg?ver=1.4' width='110px' height='100px' alt='weather34 unhealthy for some air quality' title='weather34 unhealthy for some air quality'" ; }
else if ($aqiweather["aqi"]>50){echo "<div class=air50><img src='css/aqi/modair.svg?ver=1.4' width='110px' height='100px' alt='weather34 moderate air quality' title='weather34 moderate air quality'" ; }
else if ($aqiweather["aqi"]>=0){echo "<div class=air0><img src='css/aqi/goodair.svg?ver=1.4' width='110px' height='100px' alt='weather34 good air quality' title='weather34 good air quality'" ; }
?>
</div></div></div>
<div class="airsvg">
<?php
if ($aqiweather["aqi"]>300){echo "<div class=dottedcirclered>" ; }
else if ($aqiweather["aqi"]>200){echo "<div class=dottedcirclepurple>" ; }
else if ($aqiweather["aqi"]>150){echo "<div class=dottedcirclered>" ; }
else if ($aqiweather["aqi"]>100){echo "<div class=dottedcircleorange>" ; }
else if ($aqiweather["aqi"]>50){echo "<div class=dottedcircleyellow>" ; }
else if ($aqiweather["aqi"]>=0){echo "<div class=dottedcirclegreen>" ; }
?>
<div class="airvalue">
<?php //WEATHER34 AIR QAULITY VALUE
if ($aqiweather["aqi"] >300){echo $aqiweather["aqi"] ;echo "" ; }
else if ($aqiweather["aqi"] >200){echo $aqiweather["aqi"] ;echo "" ; }
else if ($aqiweather["aqi"] >150){echo $aqiweather["aqi"] ;echo "" ; }
else if ($aqiweather["aqi"] >100){echo $aqiweather["aqi"] ;echo "" ; }
else if ($aqiweather["aqi"] >50){echo $aqiweather["aqi"] ;echo "" ; }
else if ($aqiweather["aqi"] >=0){echo $aqiweather["aqi"] ;echo "" ; }
//WEATHER34 air quality description
if ($aqiweather["aqi"]>300){echo "<br><airdescription><indoorred> ".$lang['Hazordous']."</airdescription></oorange> ";}
else if ($aqiweather["aqi"]>200){echo "<br><airdescription><indoorpurple> ".$lang['VeryUnhealthy']."</airdescription> ";}
else if ($aqiweather["aqi"]>150){echo "<br><airdescription><indoorred>".$lang['Unhealthy']."</airdescription></oorange> ";}
else if ($aqiweather["aqi"]>100){echo "<br><airdescription><indoororange>".$lang['UnhealthyFS']."</airdescription></oorange> ";}
else if ($aqiweather["aqi"]>50){echo "<br><airdescription><indooryellow>".$lang['Moderate']."</airdescription></oorange> ";}
else if ($aqiweather["aqi"]>=0){echo "<br><airdescription><indoorgreen> ".$lang['Good']."</airdescription></oorange> ";}
?>
</div></div></div>
<div class="airwarning"><?php
if($aqiweather["aqi"]>300)echo $airalertred ;
else if($aqiweather["aqi"]>200)echo $airalertpurple ;
else if($aqiweather["aqi"]>150)echo $airalertred ;
else if($aqiweather["aqi"]>100)echo $airalertorange ;
else if($aqiweather["aqi"]>50)echo $airokyellow ;
else echo $airok ;?></div>
</body>