PHP 標準の cURL の挙動

app.rb

require 'bundler/inline'

gemfile do
  source 'https://rubygems.org'

  gem 'sinatra'
end

require 'sinatra'

use Rack::Auth::Basic do |username, password|
  username == 'hoge' && password == 'huga'
end

get '/gohyaku' do
  halt 500
end

get '/yonhyaku' do
  halt 404
end

get '/json' do
  {message: 'Up yours!'}.to_json
end

get '/json-with-type' do
  content_type :json
  {message: 'Vindication!!!!!!'}.to_json
end

post '/post-me' do
  params.tap { |it| p it }.inspect
end

hi.php

<?php

# 200
$ch1 = curl_init('http://localhost:4567/json');

# 200 with type

$ch2 = curl_init('http://localhost:4567/json-with-type');;

# 40X
$ch3 = curl_init('http://localhost:4567/yonhyaku');

# 50X
$ch4 = curl_init('http://localhost:4567/gohyaku');

# URL がおかしい
$ch5 = curl_init('htt://hoge.Y');

# つながらい
$ch6 = curl_init('http://localhost:4568');

$ch7 = curl_init('http://localhost:4567/post-me');

foreach ([$ch1, $ch2, $ch3, $ch4, $ch5, $ch6] as $c) {
    curl_setopt_array($c, [
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_USERPWD => "hoge:huga"
    ]);

    $result = curl_exec($c);

    var_dump($result, curl_getinfo($c, CURLINFO_HTTP_CODE), curl_error($c));
    curl_close($c);
}

curl_setopt_array($ch7, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_USERPWD => "hoge:huga",
    CURLOPT_POSTFIELDS => [
        'hey' => 'whats up'
    ]
]);

$result = curl_exec($ch7);

var_dump($result, curl_getinfo($ch7, CURLINFO_HTTP_CODE), curl_error($ch7));
curl_close($ch7);