cosm_id_und_werte_f.php

<?php
//This script contains all the function necessary to get values from Cosm. Included by cosm_id_und_werte.php.

//returns all the IDs from a text in $alle. In this case $alle contains all information about a feed with the tag 'munster' (ID,Title, see http://cosm.com/docs/v2/feed/list.html for further information)
function get_ids($alle){
$temp2=explode("https://api.cosm.com/v2/feeds/",$alle);
$ids=array();
$count2=count($temp2);
for($i=0;$i<$count2;$i++){
if(strpos($temp2[$i],'.json')!==false){ 
	$temp=explode(".json",$temp2[$i]);
	array_push($ids, $temp[0]);
	}
}
return $ids;
}

//returns an array. In every slot is a text in JSON format for the appropriate ID with the values from Cosm. 
function get_json($ids){
$pachubes=array();
global $pachube;
$count3=count($ids);
for($i=0;$i<$count3;$i++){
$feed = $ids[$i];;
$pachub=$pachube->getFeed("json", $feed);
array_push($pachubes, $pachub);
}
//echo "<code>" . $pachubes . "</code><br/>";
return $pachubes;
}

//$json_fulltext is an array. Each slot contains the meassured values, coordinates... for one ID.
//The following two function get an array $json_fulltext and return arrays with coordinates.
function get_lat($json_fulltext){
$lat=array();
$count4=count($json_fulltext);
for($i=0;$i<$count4;$i++){
	if(strpos($json_fulltext[$i],'"lat":')!==false){
		$temp1=explode('"lat":',$json_fulltext[$i]);			
		array_push($lat, substr($temp1[1],0,16));	
			}	
	else{
		array_push($lat, -1);
	}
}	return $lat;
}

function get_lon($json_fulltext){

$lon=array();
$count5=count($json_fulltext);
for($i=0;$i<$count5;$i++){
	if(strpos($json_fulltext[$i],'"lon":')!==false){
		$temp1=explode('"lon":',$json_fulltext[$i]);
				array_push($lon, substr($temp1[1],0,12));
				}
				
			
	
	else{
		array_push($lon, -1);
	}
}	return $lon;
}

//Gets and array $json_fulltext and  returns an array with timestamps for every ID.
function get_timestamp($json_fulltext){
$timestamp=array();
$count6=count($json_fulltext);
for($i=0;$i<$count6;$i++){
	if(strpos($json_fulltext[$i],'"at":"')!==false){
		$temp1=explode('"at":"',$json_fulltext[$i]);
			if(strpos($temp1[1],'","max_value"')!==false){ 
				$temp=explode('","max_value"',$temp1[1]);
				array_push($timestamp, $temp[0]);
				}
			else{
				array_push($timestamp, -1);
			}	
	}			
			
	
	else{
		array_push($timestamp, -1);
	}
}	return $timestamp;
}

//Returns an array with NO2 values.
function get_NO2($json_fulltext){
$no2_values=array();
for($i=0;$i<count($json_fulltext);$i++){
	if(strpos($json_fulltext[$i],'"id":"NO2","current_value":"')!==false){
		$temp=explode('"id":"NO2","current_value":"',$json_fulltext[$i]);
					$temp0=explode('","at"',$temp[1]);
					array_push($no2_values, $temp0[0]);
					}
				
	else{
		array_push($no2_values, -1);
	}
}	return $no2_values;
}

//Returns an array with O3 values.
function get_O3($json_fulltext){
$o3_values=array();
for($i=0;$i<count($json_fulltext);$i++){
	if(strpos($json_fulltext[$i],'"id":"O3","current_value":"')!==false){
		$temp=explode('"id":"O3","current_value":"',$json_fulltext[$i]);
					$temp0=explode('","at"',$temp[1]);
					array_push($o3_values, $temp0[0]);
					}	
				
	else{
		array_push($o3_values, -1);
	}
}	return $o3_values;
}

////Returns an array with humidity values.
function get_Humidity($json_fulltext){
$humidity_values=array();
for($i=0;$i<count($json_fulltext);$i++){
	if(strpos($json_fulltext[$i],'"id":"humidity","current_value":"')!==false){
		$temp=explode('"id":"humidity","current_value":"',$json_fulltext[$i]);
					$temp1=explode('","at"',$temp[1]);
					array_push($humidity_values, $temp1[0]);
				}	
				
	else{
		array_push($humidity_values, -1);
	}
}	return $humidity_values;
}

//Returns an array with CO values.
function get_CO($json_fulltext){
$co_values=array();
for($i=0;$i<count($json_fulltext);$i++){
	if(strpos($json_fulltext[$i],'"id":"CO","current_value":"')!==false){
		$temp=explode('"id":"CO","current_value":"',$json_fulltext[$i]);
			$temp0=explode('","at"',$temp[1]);
			array_push($co_values, $temp0[0]);
					}
					
				
	else{
		array_push($co_values, -90);
	}
}	return $co_values;
}

//Returns an array with temperature values.
function get_Temperature($json_fulltext){
$temperature_values=array();
for($i=0;$i<count($json_fulltext);$i++){
	if(strpos($json_fulltext[$i],'"id":"temperature","current_value":"')!==false){
		$temp=explode('"id":"temperature","current_value":"',$json_fulltext[$i]);
				$temp0=explode('","at"',$temp[1]);
					array_push($temperature_values, $temp0[0]);
					}	
				
	else{
		array_push($temperature_values, -90);
	}
}	return $temperature_values;
}

function get_Name($json_fulltext){
$names=array();
for($i=0;$i<count($json_fulltext);$i++){
	if(strpos($json_fulltext[$i],'"title":"')!==false){
		$temp8=explode('"title":"',$json_fulltext[$i]);
			$count8=count($temp8);
				if(strpos($temp8[1],'","private')!==false){ 
					$temp=explode('","private',$temp8[1]);
					array_push($names, $temp[0]);
					}
				else{
					array_push($names, '-');
				}	
	}			
	else{
		array_push($names, '-');
	}
}	return $names;
}
?>