使用PHP中的curl获得Elasticsearch结果

我在AWS上设置了一个Ubuntu 18.04实例，并在其上安装了Elasticsearch版本7。我还为它分配了一个FQDN

我举了一个例子，把莎士比亚的全部作品都放在上面。我安装了

从我的Mac，使用终端，我ssh’ed到AWS实例（使用其FQDN），并从终端执行以下操作：

curl -H "Content-Type: application/json" -XGET '127.0.0.1:9200/shakespeare/_search?pretty' -d'

> {
>   "query":
>     {
>       "match_phrase": {
>                         "text_entry":"to be or not to be"
>                       }
>     }
> }'

我得到一个答案：

{
  "took" : 2,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 1,
      "relation" : "eq"
    },
    "max_score" : 13.889601,
    "hits" : [
      {
        "_index" : "shakespeare",
        "_type" : "_doc",
        "_id" : "34229",
        "_score" : 13.889601,
        "_source" : {
          "type" : "line",
          "line_id" : 34230,
          "play_name" : "Hamlet",
          "speech_number" : 19,
          "line_number" : "3.1.64",
          "speaker" : "HAMLET",
          "text_entry" : "To be, or not to be: that is the question:"
        }
      }
    ]
  }
}

我尝试编写一个PHP脚本，做同样的事情，如下所示：

<?php

$query = '{
  "query":
    {"match_phrase":{
      "text_entry":"to be or not to be"
    }
  }
}';
$url = 'http://myserver.com:9200?shakespeare/_search?pretty';
$method = "GET";
$ch = curl_init();    
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, strtoupper($method));
curl_setopt($ch, CURLOPT_POSTFIELDS, $query);
$result = array('info' => curl_getinfo($ch), 'op_result' => json_decode(curl_exec($ch), TRUE));       
print_r($result);

有什么想法吗？

把你的卷发放到Postman中，用PHP生成代码

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, '127.0.0.1:9200/shakespeare/_search?pretty');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, "\n{\n\"query\":\n    {\n      \"match_phrase\": {\n                        \"text_entry\":\"to be or not to be\"\n                      }\n    }\n}");
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');


$headers = array();
$headers[] = 'Content-Type: application/json';
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

$result = curl_exec($ch);
if (curl_errno($ch)) {
    echo 'Error:' . curl_error($ch);
}
curl_close($ch);

---

您不会手动编写HTTP请求，是吗？我强烈建议使用for this，而不是

curl

。

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, '127.0.0.1:9200/shakespeare/_search?pretty');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, "\n{\n\"query\":\n    {\n      \"match_phrase\": {\n                        \"text_entry\":\"to be or not to be\"\n                      }\n    }\n}");
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');


$headers = array();
$headers[] = 'Content-Type: application/json';
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

$result = curl_exec($ch);
if (curl_errno($ch)) {
    echo 'Error:' . curl_error($ch);
}
curl_close($ch);