version 1.5

2024-01-11 14:04:25 +01:00
parent 0ee8291846
commit 4492763b78
756 changed files with 209957 additions and 2 deletions
@@ -0,0 +1,73 @@
+<?php
+
+/**
+ * Shows how to query data into `Stream`
+ */
+
+require __DIR__ . '/../vendor/autoload.php';
+
+use InfluxDB2\Client;
+use InfluxDB2\Point;
+
+$org = 'my-org';
+$bucket = 'my-bucket';
+$token = 'my-token';
+
+//
+// Creating client
+//
+$client = new Client([
+    "url" => "http://localhost:8086",
+    "token" => $token,
+    "bucket" => $bucket,
+    "org" => $org,
+    "precision" => InfluxDB2\Model\WritePrecision::S
+]);
+
+//
+// Write test data into InfluxDB
+//
+$writeApi = $client->createWriteApi();
+$pointArray = [];
+
+$dateNow = new DateTime('NOW');
+for ($i = 1; $i <= 10; $i++) {
+    $point = Point::measurement("weather")
+        ->addTag("location", "San Francisco")
+        ->addField("temperature", rand(5, 25))
+        ->time($dateNow->getTimestamp());
+    $pointArray[] = $point;
+    $dateNow->sub(new DateInterval('P1D'));
+}
+
+$writeApi->write($pointArray);
+$writeApi->close();
+
+//
+// Get query client
+//
+$queryApi = $client->createQueryApi();
+
+//
+// Synchronously executes the Flux query and return stream of FluxRecord
+//
+$queryApi = $client->createQueryApi();
+$query = "from(bucket: \"my-bucket\")
+            |> range(start: 0)
+            |> filter(fn: (r) => r[\"_measurement\"] == \"weather\"
+                             and r[\"_field\"] == \"temperature\")";
+$result = $queryApi->queryStream($query);
+
+//
+// Working with returned data into Stream
+//
+printf("\n\n----------------------------- Query Stream -------------------------------\n\n");
+foreach ($result->each() as $record) {
+    $location = $record["location"];
+    $temperature = $record->getValue();
+    $time = $record->getTime();
+    $measurement = $record->getMeasurement();
+    print " $measurement in $location at $time - Temperature is $temperature °C\n";
+}
+
+$client->close();