PHP: CouchDB のデータを更新 (Update)

couch_update.php

#! /usr/bin/php
<?php
// ------------------------------------------------------------------
//  couch_update.php
//
//                      Jul/31/2020
//
// ------------------------------------------------------------------
include('Requests/library/Requests.php');

fputs (STDERR,"*** 開始 ***\n");
$key_in = $argv[1];
$population_in = $argv[2];

print   "key_in = " . $key_in . "\n";
print   $population_in . "\n";

Requests::register_autoloader();

$url_base = 'http://localhost:5984/nagano';
$url_target = $url_base . "/" . $key_in;

$request = Requests::get($url_target, array('Accept' => 'application/json'));

// var_dump($request->status_code);

$json_string = $request->body;
$data_aa = json_decode ($json_string,true);

// var_dump($data_aa);

if (array_key_exists ("_rev",$data_aa))
    {
    print($data_aa["_rev"] . "\n");
    print($data_aa["name"] . "\n");

    $url_up=$url_target . "?rev=" . $data_aa["_rev"];

    date_default_timezone_set('Asia/Tokyo');
    $today = date ("Y-m-d");

    $unit_aa = array();
    $unit_aa["name"] = $data_aa["name"];
    $unit_aa["population"] = $population_in;
    $unit_aa["date_mod"] = $today;
    $str_json = json_encode ($unit_aa);

    print $str_json . "\n";
    $headers = array('Content-Type' => 'application/json');
    $result = Requests::put($url_up,$headers,$str_json);

//  var_dump($result);
    }
else
    {
    fputs (STDERR,"*** key doesn't exist ***\n");
    }

fputs (STDERR,"*** 終了 ***\n");

// ------------------------------------------------------------------

実行

./couch_update.php t2022 5923400