97 lines
2.1 KiB
PHP
97 lines
2.1 KiB
PHP
<?php
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/**
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* Shows how to use a Flux query defined in a separate file
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*/
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require __DIR__ . '/../vendor/autoload.php';
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use InfluxDB2\Client;
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use InfluxDB2\Point;
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$org = 'my-org';
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$bucket = 'my-bucket';
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$token = 'my-token';
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//
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// Creating client
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//
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$client = new Client([
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"url" => "http://localhost:8086",
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"token" => $token,
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"bucket" => $bucket,
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"org" => $org,
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"precision" => InfluxDB2\Model\WritePrecision::S
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]);
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//
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// Write test data into InfluxDB
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//
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$writeApi = $client->createWriteApi();
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$pointArray = [];
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$dateNow = new DateTime('NOW');
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for ($i = 1; $i <= 10; $i++) {
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$point = Point::measurement("weather")
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->addTag("location", "Prague")
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->addField("temperature", rand(-5, 15))
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->time($dateNow->getTimestamp());
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$pointArray[] = $point;
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$dateNow->sub(new DateInterval('P1D'));
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}
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$writeApi->write($pointArray);
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$writeApi->close();
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//
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// Get query client
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//
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$queryApi = $client->createQueryApi();
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//
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// Executes Flux query defined in a separate file
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//
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$filename = "query.flux";
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$handle = fopen($filename, "r");
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$contents = fread($handle, filesize($filename));
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fclose($handle);
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$result = $queryApi->query($contents);
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//
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// Working with returned data in FluxTables
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//
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printf("\n\n------------------------------- Query -------------------------------\n\n");
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foreach ($result as $table) {
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foreach ($table->records as $record) {
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$day = getDayName($record["weekDay"]);
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$location = $record["location"];
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$temperature = $record["temperature"];
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$measurement = $record->getMeasurement();
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print "Temperature in $location at $day is $temperature °C\n";
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}
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}
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function getDayName(int $weekDay): string
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{
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switch ($weekDay) {
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case "1":
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return "Monday";
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case "2":
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return "Tuesday";
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case "3":
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return "Wednesday";
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case "4":
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return "Thursday";
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case "5":
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return "Friday";
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case "6":
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return "Saturday";
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case "0":
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return "Sunday";
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}
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return "";
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}
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$client->close();
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