消除API输出数据中的换行符 [英] Eliminating line breaks in API output data

问题描述

我是API集成和PHP的新手.我最近将VIN解码器集成到了我的应用中.在输入框中输入车辆的VIN，单击提交，然后返回有关该车辆的信息.

I am new to API integration and PHP. I recently integrated a VIN decoder into my app. Enter a vehicle's VIN into the input box, click submit, and information regarding that vehicle is returned.

问题是某些车辆返回的数据比其他车辆多.奥迪A4，VIN:WAUBFAFL6FA058452，返回所有字段的数据.但是，保时捷911(VIN:WP0AB29954S696067)仅返回某些字段的数据.

The issue is some vehicles return more data than others. An Audi A4, VIN: WAUBFAFL6FA058452, returns data for all of the fields. However, a Porsche 911, VIN: WP0AB29954S696067, returns data for only some of the fields.

这是输出的外观.

奥迪A4:

VIN: WAUBFAFL6FA058452

Engine-

Engine Displacement 1: 2 liters
Engine Displacement 2: 1984 cc's
Engine Displacement 3: 121.071108283 ci's
Engine Size: 4 cylinders
Horsepower: 220 hp
Kilowatts: 164.0540 kw
Engine Manufacturer: Audi
Engine Model: Flex Fuel Capable engine
Primary Fuel Type: Gasoline
Secondary Fuel Type: Ethanol (E85)

保时捷911:

VIN: WP0AB29954S696067

Engine-

Engine Displacement 1: 3.6 liters
Engine Displacement 2: 3600.0 cc's
Engine Displacement 3: 219.68547874103 ci's
Engine Size: 6 cylinders
Horsepower: 415 hp
Kilowatts: 309.4655 kw


Primary Fuel Type: Gasoline

我想做的是消除由空数据字段引起的数据空白.由于没有发动机制造商和发动机型号"的数据，因此输出数据中存在间隙.如何消除这种差距?因此，保时捷911的期望输出如下所示:

What I want to do is eliminate the gap in data caused by empty data fields. Because there is no data for "Engine Manufacturer and Engine Model," there is a gap in the output data. How can I eliminate this gap? The desired output for the Porsche 911 would therefore look like this:

所需的保时捷输出:

VIN: WP0AB29954S696067

Engine-

Engine Displacement 1: 3.6 liters
Engine Displacement 2: 3600.0 cc's
Engine Displacement 3: 219.68547874103 ci's
Engine Size: 6 cylinders
Horsepower: 415 hp
Kilowatts: 309.4655 kw
Primary Fuel Type: Gasoline

这是我的php代码:

<?php

$vin = $_POST["b12"];

if ($vin) {
$postdata = http_build_query([
        'format' => 'json',
        'data' => $vin
    ]
);
$opts = [
    'http' => [
        'method' => 'POST',
        'content' => $postdata
    ]
];

$apiURL = "https://vpic.nhtsa.dot.gov/api/vehicles/DecodeVINValuesBatch/";
$context = stream_context_create($opts);
$fp = fopen($apiURL, 'rb', false, $context);
$line_of_text = fgets($fp);
$json = json_decode($line_of_text, true);
fclose($fp);

$data = array();
foreach ($json['Results'][0] as $k => $v){

  if ($k == "DisplacementCC"){
    $k  = "Engine Displacement 2";
  }
  if ($k == "DisplacementCI"){
    $k  = "Engine Displacement 3";
  }
  if ($k == "DisplacementL"){
    $k  = "Engine Displacement 1";
    $v = round($v,1);
  }
  if ($k == "EngineKW"){
    $k  = "Kilowatts";
  }
  if ($k == "EngineManufacturer"){
    $k  = "Engine Manufacturer";
  }
  if ($k == "EngineModel"){
    $k  = "Engine Model";
  }
  if ($k == "FuelTypePrimary"){
    $k  = "Primary Fuel Type";
  }
  if ($k == "FuelTypeSecondary"){
    $k  = "Secondary Fuel Type";
  }
  if ($k == "EngineHP"){
    $k  = "Horsepower";
  }
  if ($k == "EngineCylinders"){
    $k  = "Engine Size";
  }

  if (!empty($v)) {
    $data[$k] = ($k).": ".($v);
  }
}

echo $data['VIN'].'<br /><br/>';

echo "Engine-".'<br /><br />';
echo $data['Engine Displacement 1']. " liters". '<br />';
echo $data['Engine Displacement 2']. " cc's". '<br />';
echo $data['Engine Displacement 3']. " ci's". '<br />';
echo $data['Engine Size']. " cylinders". '<br />';
echo $data['Horsepower']." hp". '<br />';
echo $data['Kilowatts']." kw". '<br />';
echo $data['Engine Manufacturer']. '<br />';
echo $data['Engine Model']. '<br />';
echo $data['Primary Fuel Type']. '<br />';
echo $data['Secondary Fuel Type']. '<br /><br />';


  }

else {
echo 'No Vin Inputted';
  }




?>

推荐答案

最简单的方法是创建一个小的实用程序函数，如果定义了该指标，则该函数可以有选择地打印每个指标:

The easiest thing to do would be to just create a little utility function that optionally prints each metric if it is defined:

<?php
function print_if_not_empty(array &$arr, $key, $suffix = '') {
    if (!empty($arr[$key])) {
        echo $arr[$key] . ' ' . $suffix . '<br />';
    }
}

然后您将这样称呼它:

print_if_not_empty($data, 'Engine Displacement 1', "liters");
print_if_not_empty($data, 'Engine Displacement 2', "cc's");
print_if_not_empty($data, 'Engine Displacement 3', "ci's");
print_if_not_empty($data, 'Engine Size', "cylinders");
print_if_not_empty($data, 'Horsepower', "hp");
print_if_not_empty($data, 'Kilowatts', "kw");
print_if_not_empty($data, 'Engine Manufacturer');
print_if_not_empty($data, 'Engine Model');
print_if_not_empty($data, 'Primary Fuel Type');
print_if_not_empty($data, 'Secondary Fuel Type');
echo '<br/>';

print_if_not_empty函数采用一个数组，该数组中的一个键以及一个可选的后缀.它检查以确保键存在于数组中，并且该键不为空，如果存在，它将打印具有指定后缀的值.如果它不在数组中，或者它为空，则不打印任何内容.

The print_if_not_empty function takes an array, a key into that array, and an optional suffix. It checks to make sure that the key exists in the array and that it is not empty, and if so it prints the value with the specified suffix. If it’s not in the array or it is and it is empty, it prints nothing.

这篇关于消除API输出数据中的换行符的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！