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【PHP】cURL関数でPOSTする方法(送信&受け取る(API))

Posted at

送信側

curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, $json_params);

この2行でPOSTできるようにする。

送りたい値を連想配列にしたのち、json_encodeでJSON形式にして送る

  $base_url = 'api.php';
  $params = [
    'user_id'  => $user_id,
    'password' => $password
  ];
  $json_params = json_encode($params);

  $headers = [
    'Content-Type: application/json',
    'Accept-Charset: UTF-8',
  ];

  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $base_url);
  curl_setopt($ch, CURLOPT_POST, TRUE);
  curl_setopt($ch, CURLOPT_POSTFIELDS, $json_params);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
  $login_info_return_value = curl_exec($ch);
  curl_close($ch);

###受け取るAPI側

JSONで受け取る

$user_id  = filter_input(INPUT_POST, 'user_id');
$password = filter_input(INPUT_POST, 'password');

$post_json_data = file_get_contents("php://input");
// JSONファイルを連想配列へ変換
$post_obj_data = json_decode($post_json_data, true);

php://input php://input は読み込み専用のストリームで、 リクエストの body 部から生のデータを読み込むことができます。 php://input は、 enctype=”multipart/form-data” に対しては使用できません。 https://www.php.net/manual/ja/wrappers.php.php

  • $post_json_data にJSON形式で格納される
  • それを連想配列に戻して使用する
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