使用php-simple-html-dom-parser遇到的问题

今天使用这个工具：

https://github.com/sunra/php-simple-html-dom-parser

遇到了问题，首先我是用了php-simple-html-dom-parser自带的testcase中的slick_test.php，就报错，然后我自己写了三行最简单的代码来抓一下百度首页：

require'./simplehtmldom_1_5/simple_html_dom.php';
$html = file_get_html('http://www.baidu.com/');

//找到所有图片 foreach($html->find('img') as$element) 
       echo$element->src . '
';


  //找到所有链接 foreach($html->find('a') as$element) 
       echo$element->href . '
';

结果报错为：

andy@AndyMacBookPro:/usr/local/webdata/github/php-simple-html-dom-parser/Src/Sunra/PhpSimple$ php andy.php
//www.baidu.com/img/baidu_jgylogo3.gif
//www.baidu.com/img/bd_logo.png
http://s1.bdstatic.com/r/www/cache/static/global/img/gs_237f015b.gif
//www.baidu.com/gaoji/preferences.html
/
https://passport.baidu.com/v2/?login&tpl=mn&u=http%3A%2F%2Fwww.baidu.com%2F
https://passport.baidu.com/v2/?reg&regType=1&tpl=mn&u=http%3A%2F%2Fwww.baidu.com%2F
/
http://news.baidu.com/ns?cl=2&rn=20&tn=news&word=
http://tieba.baidu.com/f?kw=&fr=wwwt
http://zhidao.baidu.com/q?ct=17&pn=0&tn=ikaslist&rn=10&word=&fr=wwwt
http://music.baidu.com/search?fr=ps&key=
http://image.baidu.com/i?tn=baiduimage&ps=1&ct=201326592&lm=-1&cl=2&nc=1&word=
http://v.baidu.com/v?ct=301989888&rn=20&pn=0&db=0&s=25&word=
http://map.baidu.com/m?word=&fr=ps01000
http://wenku.baidu.com/search?word=&lm=0&od=0
//www.baidu.com/more/
javascript:;
javascript:;
javascript:;
http://w.x.baidu.com/go/mini/8/10000020
http://news.baidu.com
http://www.hao123.com
http://map.baidu.com
http://v.baidu.com
http://tieba.baidu.com
https://passport.baidu.com/v2/?login&tpl=mn&u=http%3A%2F%2Fwww.baidu.com%2F
//www.baidu.com/gaoji/preferences.html
//www.baidu.com/more/
http://news.baidu.com
http://tieba.baidu.com
http://zhidao.baidu.com
http://music.baidu.com
http://image.baidu.com
http://v.baidu.com
http://map.baidu.com
javascript:;
javascript:;
javascript:;
http://baike.baidu.com
http://wenku.baidu.com
http://www.hao123.com
//www.baidu.com/more/
/
//www.baidu.com/cache/sethelp/index.html
http://home.baidu.com
http://ir.baidu.com
/duty/
create_debugger_socket("localhost", 9000) socket: Too many open files
create_debugger_socket("localhost", 9000) socket: Too many openfiles
create_debugger_socket("localhost", 9000) socket: Too many openfiles
create_debugger_socket("localhost", 9000) socket: Too many openfiles
create_debugger_socket("localhost", 9000) socket: Too many openfiles
create_debugger_socket("localhost", 9000) socket: Too many openfiles
create_debugger_socket("localhost", 9000) socket: Too many openfiles
create_debugger_socket("localhost", 9000) socket: Too many openfiles
create_debugger_socket("localhost", 9000) socket: Too many openfiles
create_debugger_socket("localhost", 9000) socket: Too many openfiles
create_debugger_socket("localhost", 9000) socket: Too many openfiles
create_debugger_socket("localhost", 9000) socket: Too many openfiles
create_debugger_socket("localhost", 9000) socket: Too many openfiles
create_debugger_socket("localhost", 9000) socket: Too many openfiles
create_debugger_socket("localhost", 9000) socket: Too many openfiles
create_debugger_socket("localhost", 9000) socket: Too many openfiles
create_debugger_socket("localhost", 9000) socket: Too many openfiles
create_debugger_socket("localhost", 9000) socket: Too many openfiles
create_debugger_socket("localhost", 9000) socket: Too many openfiles
create_debugger_socket("localhost", 9000) socket: Too many openfiles
andy@AndyMacBookPro:/usr/local/webdata/github/php-simple-html-dom-parser/Src/Sunra/PhpSimple$

这个报错：

create_debugger_socket(“localhost”, 9000) socket: Too many open files

搞不懂，不知道哪里用到了socket连接？？

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
现在搞定了，是这样的，首先我想调试一下出错的php看看哪里的问题，然后我开启了MacGDBP，发现开启了MacGDBp之后，竟然不报错了，又联想到了9000端口，这个是xdebug的对应调试端口，所以有了一点思路，可能是xdebug的问题，然后在网上参考了这里：

http://bugs.xdebug.org/view.php?id=1070

看到这里：

• Installed Xdebug, and set xdebug.remote_connect_back and xdebug.remote_enable to 1 so that it connects to my host, running (or not running phpstorm)
• Set xdebug.remote_log=/tmp/remote.log

然后我们到/etc/php.ini中为xdebug的配置添加了

xdebug.remote_log = /tmp/xdebug_remote.log

之后我们继续运行，继续出错，不过我们可以到/tmp/xdebug_remote.log文件中可以看到这种错误日志：

16 Log opened at2015-02-2003:48:2917 I: Connecting to configured address/port: localhost:9000.18 E: Could not connect to client. :-(
  19 Log closed at2015-02-2003:48:29

好吧，我们知道了无法连接到localhost:9000的socket端口，肯定的呀，因为我本地没有打开MacGDBP，这个是php的一个调试工具，如果你在php.ini的xdebug这里：

xdebug.remote_enable = on
xdebug.remote_handler = dbgp
xdebug.remote_host = localhost
xdebug.remote_port = 9000
xdebug.remote_autostart = 1

如果xdebug.remote_autostart设置为1，也就是自动开启的话，就会直接请求开启9000端口的socket连接，如果没有就报错。原因就是这样:-)。

好了，因为这个日志文件输出还挺大的，所以我们可以关闭xdebug.remote_log了，也就是：

xdebug.remote_enable = on
xdebug.remote_handler = dbgp
xdebug.remote_host = localhost
xdebug.remote_port = 9000
xdebug.remote_autostart = 1
;xdebug.remote_log = /tmp/xdebug_remote.log

加分号就ok了。

以上就介绍了使用php-simple-html-dom-parser遇到的问题，包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。