对Elasticsearch进行查询（PHP）

我会用PHP向这里创建的数据进行查询。
将数据投入到Elasticsearch中。

#! /usr/bin/php
<?php
// ------------------------------------------------------------------
//  elastic_query.php
//
//                  Oct/04/2018
//
// ------------------------------------------------------------------
function curl_get_proc ($url)
{
    $ch = curl_init();
    curl_setopt ($ch, CURLOPT_URL, $url);
    curl_setopt ($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt ($ch, CURLOPT_PROXY, "");

    $data = curl_exec($ch);

    curl_close($ch);

    return $data;
}

// ------------------------------------------------------------------
fputs (STDERR,"*** 開始 ***\n");

$url = "http://localhost:9200/_search?q=tags:apple,moon";

$json_string = curl_get_proc ($url);

$dict_aa = json_decode ($json_string,true);

$llx = count($dict_aa['hits']['hits']);

print("count = " . strval($llx) . "\n");

foreach ($dict_aa['hits']['hits'] as $unit)
    {
    $ss = $unit['_source'];
    print($ss['name'] . "\n");
    print($ss['title'] . "\n");
    print($ss['content'] . "\n");
    print_r($ss['tags']);
    }

fputs (STDERR,"*** 終了 ***\n");
// ------------------------------------------------------------------
?>

运行结果

$ ./elastic_query.php
*** 開始 ***
count = 2
渡辺五郎
My Name Is Watanabe
I love fish
Array
(
    [0] => apple
    [1] => orange
    [2] => banana
)
田中康夫
My Name Is Tanaka
I love cat
Array
(
    [0] => Earth
    [1] => Moon
    [2] => Mars
)
*** 終了 ***