我需要通过 JS 通过 API 向 php 文件发送请求 [英] I need to send a request through JS to a php file via API

问题描述

请帮帮我.有两个 php 文件 Data.php 和 Status.php.在zip字段中输入数据时，需要向Data.php文件发送请求，如果zip可用，将数据发送到这里的Status.phpenter代码，解析字段中的响应. 下面我给出一个js 示例和 Data.php、Status.php我将不胜感激)

Help me please. There are two php files Data.php and Status.php. When you enter data in the zip field, you need to send a request to the Data.php file, and if zip is available, send the data to Status.phpenter code here and parse the response in the field.Below I will give a js example and Data.php, Status.php I will be grateful for the help)

function ajax(params) {
        var xhr = new XMLHttpRequest();
        var url = params.url || '';
        var body = params.body || '';
        var success = params.success;
        var error = params.error;

        xhr.open('POST', url, true);
        xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
        xhr.send(body);
        xhr.onload = function () {
            if (xhr.readyState === 4 && xhr.status === 200 && typeof success === 'function') {
                success(xhr.response);
            } else if (xhr.readyState === 4 && xhr.status !== 200 && typeof error === 'function') {
                error(xhr.response);
            }
        };
        xhr.onerror = error || null;
    }
    
    //Data.php
    
<?php
header('Content-Type: application/x-www-form-urlencoded');
header('Access-Control-Allow-Origin: *');

if (isset($_POST['zip'])) {
    $zip = filter_var($_POST['zip'], FILTER_VALIDATE_REGEXP, array('options'=>array('regexp'=>'/^[0-9]{5}/')));

    if ($zip) {
        $status = (int) $zip < 33333 ? array('zip' => $zip, 'state' => 'OH', 'city' => 'NEWTON FALLS') : array('zip' => $zip, 'state' => 'CA', 'city' => 'BEVERLY HILLS');
        echo json_encode($status);
    } else {
        echo 'error';
    }
} else {
    echo 'error';
}


  //Status.php
  
  <?php
header('Content-Type: application/x-www-form-urlencoded');
header('Access-Control-Allow-Origin: *');

if (isset($_POST['zip'])) {
    $zip = filter_var($_POST['zip'], FILTER_VALIDATE_REGEXP, array('options' => array('regexp' => '/^[0-9]{5}/')));

    if ($zip) {
        $status = (int) $zip < 33333 ? 'allowed' : 'blocked';
        echo $status;
    } else {
        echo 'error';
    }
} else {
    echo 'error';
}

推荐答案

javaScript 代码

    const data = { name: 'scott' }; // data for post
    
    fetch('url', {
      method: 'POST', 
      headers: {
        'Content-Type': 'application/json', // type
      },
      body: JSON.stringify(data),
    })
    .then(response => response.json())
    .then(data => {
      console.log(data);
    })
    .catch((error) => {
      console.error(error);
    });

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