这篇文章介绍的内容是关于php 爬虫抓取歌词，有着一定的参考价值，现在分享给大家，有需要的朋友可以参考一下
<?php
header("content-type:text/html;charset=utf-8");
class small_crawler
{
protected $regular; //获取内容正则
protected $url; //源头
protected $i; //控制数量
protected $count; //总数
protected $lyrics_ze; //歌词内容
protected $lyrics_lrc; //歌词地址匹配
protected $txt; //存储地址
function __construct()
{
$this->regular = "/<a href=\"\/song\/([0-9])*\".*>*<\/a>/";
$this->lyrics_ze = "/<p id=\"lyriccont\".*<\/p>/";
$this->lyrics_lrc = "/\"http:\/\/.*\"/";
$this->url = 'http://music.baidu.com/';
$this->txt = "playlist.txt";
$this->i = 0;
$this->count = 110;
}
/**
* 开始任务
*/
function perform()
{
$data = file_get_contents($this->url);
if(preg_match_all($this->regular, $data, $mar)){
$this->lyrics($mar); //歌词筛选
}else{
echo '已没有可用信息';
exit;
}
}
/**
* @param $data
* 歌词处理
*/
function lyrics($data)
{
if(is_array($data)){
//歌词筛选
foreach ($data[0] as $k=>$y){
$data_s = explode('"',$y);
if(!empty($data_s[1])){
$the_lyrics = file_get_contents($this->url.$data_s[1]);
if(preg_match_all($this->lyrics_ze, $the_lyrics, $lyrics_x)){
if(preg_match_all($this->lyrics_lrc, $lyrics_x[0][0], $lyrics_c)){
$lyrics_c = explode('"',$lyrics_c[0][0]);
$lyrics_file = file_get_contents($lyrics_c[1]);
$this->write($lyrics_file);
}
}
}
}
//循环操作
foreach ($data[0] as $ki=>$yi){
$data_t = explode('"',$yi);
if(!empty($data_t[1])){
$the_lyrics_as = file_get_contents($this->url.$data_t[1]);
if(preg_match_all($this->regular, $the_lyrics_as, $mars)){
$this->lyrics($mars); //歌词筛选
}
}
}
}
}
/**
* @param $lyrics_file
* 写入文件
*/
function write($lyrics_file)
{
if($this->i < $this->count){
$acs = preg_replace('/(\[.*\])/','',$lyrics_file);
$myfile = fopen($this->txt, "a");
fwrite($myfile,$acs);
fwrite($myfile,"\r\n".$this->i.".-----------------------------------------------------------\r\n");
$this->i++;
}else{
exit; //结束停止
}
}
}
//运行
$ts = new small_crawler();
$ts->perform()
?>
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以上就是php 爬虫抓取歌词的详细内容。