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使用php-simple-html-dom-parser遇到的問題

php中文網(wǎng)

發(fā)布： 2016-08-08 09:29:36

原創(chuàng)

1829人瀏覽過

今天使用這個(gè)工具：

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

遇到了問題，首先我是用了php-simple-html-dom-parser自帶的testcase中的slick_test.php，就報(bào)錯(cuò)，然后我自己寫了三行最簡(jiǎn)單的代碼來(lái)抓一下百度首頁(yè)：

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

<span>//找到所有圖片 </span><span>foreach</span>(<span>$html</span>->find(<span>'img'</span>) <span>as</span><span>$element</span>) 
       <span>echo</span><span>$element</span>->src . <span>'<br>'</span>;


  <span>//找到所有鏈接 </span><span>foreach</span>(<span>$html</span>->find(<span>'a'</span>) <span>as</span><span>$element</span>) 
       <span>echo</span><span>$element</span>->href . <span>'<br>'</span>;</span>

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結(jié)果報(bào)錯(cuò)為：

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

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這個(gè)報(bào)錯(cuò)：

立即學(xué)習(xí)“PHP免費(fèi)學(xué)習(xí)筆記（深入）”；

create_debugger_socket(“l(fā)ocalhost”, 9000) socket: Too many open files

搞不懂，不知道哪里用到了socket連接？？

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
現(xiàn)在搞定了，是這樣的，首先我想調(diào)試一下出錯(cuò)的php看看哪里的問題，然后我開啟了MacGDBP，發(fā)現(xiàn)開啟了MacGDBp之后，竟然不報(bào)錯(cuò)了，又聯(lián)想到了9000端口，這個(gè)是xdebug的對(duì)應(yīng)調(diào)試端口，所以有了一點(diǎn)思路，可能是xdebug的問題，然后在網(wǎng)上參考了這里：

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

看到這里：

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

然后我們到/etc/php.ini中為xdebug的配置添加了

xdebug.remote_log = /tmp/xdebug_remote.log

之后我們繼續(xù)運(yùn)行，繼續(xù)出錯(cuò)，不過我們可以到/tmp/xdebug_remote.log文件中可以看到這種錯(cuò)誤日志：

<span>16</span> Log opened <span>at</span><span>2015</span>-<span>02</span>-<span>20</span><span>03</span>:<span>48</span>:<span>29</span><span>17</span> I: Connecting <span>to</span> configured address/port: localhost:<span>9000.</span><span>18</span> E: Could <span>not</span> connect <span>to</span> client. :-(
  <span>19</span> Log closed <span>at</span><span>2015</span>-<span>02</span>-<span>20</span><span>03</span>:<span>48</span>:<span>29</span>

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好吧，我們知道了無(wú)法連接到localhost:9000的socket端口，肯定的呀，因?yàn)槲冶镜貨]有打開MacGDBP，這個(gè)是php的一個(gè)調(diào)試工具，如果你在php.ini的xdebug這里：

xdebug<span>.remote</span>_enable = on
xdebug<span>.remote</span>_handler = dbgp
xdebug<span>.remote</span>_host = localhost
xdebug<span>.remote</span>_port = <span>9000</span>
xdebug<span>.remote</span>_autostart = <span>1</span>

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如果xdebug.remote_autostart設(shè)置為1，也就是自動(dòng)開啟的話，就會(huì)直接請(qǐng)求開啟9000端口的socket連接，如果沒有就報(bào)錯(cuò)。原因就是這樣:-)。

好了，因?yàn)檫@個(gè)日志文件輸出還挺大的，所以我們可以關(guān)閉xdebug.remote_log了，也就是：

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

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加分號(hào)就ok了。

以上就介紹了使用php-simple-html-dom-parser遇到的問題，包括了方面的內(nèi)容，希望對(duì)PHP教程有興趣的朋友有所幫助。