Path: C:\
<?php
$d = json_decode(file_get_contents('c:\temp\api_dump.json'), true);
echo "=== SENSOR KEYS ===\n";
foreach ($d as $key => $sensor) {
$count = isset($sensor['values']) ? count($sensor['values']) : 0;
$unit = isset($sensor['unit']) ? $sensor['unit'] : '?';
$vals = [];
if (isset($sensor['values'])) {
foreach ($sensor['values'] as $v) {
$vals[] = $v['value'];
}
}
$min = !empty($vals) ? min($vals) : 'N/A';
$max = !empty($vals) ? max($vals) : 'N/A';
$avg = !empty($vals) ? array_sum($vals) / count($vals) : 'N/A';
echo "Key: $key | Unit: $unit | Count: $count | Min: $min | Max: $max | Avg: $avg\n";
}
?>