How to use PHP and phpSpider to capture song data from music websites?

How to use PHP and phpSpider to capture song data from music websites?

In the Internet era, music websites have become an important way for people to obtain music resources. However, for us developers, sometimes we need to obtain song data on a specific music website for analysis or other business needs. This requires us to learn to use PHP and phpSpider, a powerful PHP crawler framework, to quickly crawl and process data. This article will use an example to introduce how to use PHP and phpSpider to capture song data from music websites.

Step 1: Install phpSpider
First, we need to install phpSpider in our development environment. Download the phpSpider source code locally and unzip it to the root directory of your web server or any other directory you wish to place it. Next, install the dependencies by entering the directory where phpSpider is located in the terminal and executing the command composer install.

Step 2: Write a song data capture script
1) Create a new PHP file named spider.php.
2) Import the phpSpider framework in spider.php and create a new phpSpider object.

<?php
require 'vendor/autoload.php';
use phpspidercorephpspider;
$spider = new phpspider();

3) Set the basic configuration of phpSpider, including target URL and storage directory, etc.

$spider->config['name'] = 'music_spider';
$spider->config['log_show'] = false;
$spider->config['host'] = 'https://music.example.com';
$spider->config['export'] = array(
    'type' => 'csv',
    'file' => './output/songs.csv',
);

4) Add an entrance URL and set the crawling rules for the entrance URL.

$spider->add_scan_url('https://music.example.com/songs');
$spider->on_scan_page = function($page, $content, $phpspider)
{
    $urls = array();
    // 解析歌曲列表页获取每首歌的详情页URL
    if (preg_match_all('/<a href="(/songs/d+)">/', $content, $out))
    {
        foreach ($out[1] as $url)
        {
            $urls[] = "https://music.example.com" . $url;
        }
    }
    return $urls;
};

5) Set the crawling rules for the song details page, and process and store the song data.

$spider->on_extract_page = function($page, $data)
{
    $songs = array();
    // 解析歌曲详情页获取歌曲数据
    if (preg_match('/<h1>(.*?)</h1>/', $page['raw'], $out))
    {
        $song_name = $out[1];
        // 处理歌曲名
        $song_name = str_replace(' - ', ' ', $song_name);
        $songs['name'] = $song_name;
    }
    if (preg_match('/歌手：<a href=".*?">(.*?)</a>/', $page['raw'], $out))
    {
        $singer = $out[1];
        $songs['singer'] = $singer;
    }
    // 做其他数据处理和存储逻辑...

    return $songs;
};

6) Run the crawling script.

$spider->start();

Step 3: Run the song data capture script
Run our song data capture script through the command php spider.php in the terminal.

Through the above steps, we successfully used PHP and phpSpider to capture song data from the music website. Of course, depending on different music websites, their HTML structure and data crawling rules may be different. We need to make appropriate modifications and adjustments to the above code according to specific needs. I hope that the introduction and examples in this article can help you better use PHP and phpSpider to crawl music website data.

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