wachstumsfaktoren bestimmen

get-all.php

@@ -0,0 +1,33 @@
+<?php
+include "config.php";
+
+$sql = "SELECT data.id, time, amount FROM data inner join scans on scans.id=data.scan where place = 'Germany.' order by time asc ";
+$stmt = $pdo->query($sql);
+$data = $stmt->fetchAll(PDO::FETCH_ASSOC);
+
+var_dump($data[1]['id']);
+
+$oneDaySteps = array();
+
+for ($i = 0; $i < sizeof($data); $i++){
+    //var_dump($i%144);
+    if (($i+1)%144 == 0){
+        var_dump($data[$i]);
+        $oneDaySteps[] = intval($data[$i]['amount']);
+    }
+}
+
+$ratios = array();
+
+for ($i = 1; $i < sizeof($oneDaySteps); $i++){
+    $ratios[] = $oneDaySteps[$i]/$oneDaySteps[$i-1];
+}
+
+var_dump($ratios);
+
+$sum = 0;
+foreach ($ratios as $ratio){
+    $sum = $sum + $ratio;
+}
+
+echo $sum/count($ratios)."\n";