2

我试过 strip_tag 但它仍然留下内联 js : (function(){..}) 和内联 css #button{}

我需要从没有任何 JS 函数或样式或标签的 html 中提取纯文本，以便我可以索引它并用于我的搜索功能。

html2text 似乎也没有解决问题！

编辑

PHP代码：

$url = "http://blog.everymansoftware.com/2011/11/development-setup-for-neo4j-and-php_05.html";

$fileHeaders = @get_headers($url);
if( $fileHeaders[0] == "HTTP/1.1 200 OK" || $fileHeaders[0] == "HTTP/1.0 200 OK")
        {
            $content = strip_tags(file_get_contents($url));
        }

输出 ：

$内容=

(function() { var a=window,c="jstiming",d="tick";var e=function(b){this.t={};this.tick=function(b,o,f){f=void 0!=f?f:(new Date).getTime();this.t[b]=[f,o]};this[d]("start",null,b)},h=new e;a.jstiming={Timer:e,load:h};if(a.performance&&a.performance.timing){var i=a.performance.timing,j=a[c].load,k=i.navigationStart,l=i.responseStart;0=k&&(j[d]("_wtsrt",void 0,k),j[d]("wtsrt_","_wtsrt",l))}
try{var m=null;a.chrome&&a.chrome.csi&&(m=Math.floor(a.chrome.csi().pageT));null==m&&a.gtbExternal&&(m=a.gtbExternal.pageT());null==m&&a.external&&(m=a.external.pageT);m&&(a[c].pt=m)}catch(n){};a.tickAboveFold=function(b){var g=0;if(b.offsetParent){do g+=b.offsetTop;while(b=b.offsetParent)}b=g;750>=b&&a[c].load[d]("aft")};var p=!1;function q(){p||(p=!0,a[c].load[d]("firstScrollTime"))}a.addEventListener?a.addEventListener("scroll",q,!1):a.attachEvent("onscroll",q);
 })();











Everyman Software: Development Setup for Neo4j and PHP: Part 2



#navbar-iframe { display:block }






if(window.addEventListener) {
    window.addEventListener('load', prettyPrint, false);
  } else {
    window.attachEvent('onload', prettyPrint);
  }
var a=navigator,b="userAgent",c="indexOf",f="&m=1",g="(^|&)m=",h="?",i="?m=1";function j(){var d=window.location.href,e=d.split(h);switch(e.length){case 1:return d+i;case 2:return 0



2011-11-05







Development Setup for Neo4j and PHP: Part 2





This is Part 2 of a series on setting up a development environment for building projects using the graph database Neo4j and PHP. In Part 1 of this series, we set up unit test and development databases.  In this part, we'll build a skeleton project that includes unit tests, and a minimalistic user interface.

All the files will live under a directory on our web server. In a real project, you'll probably want only the user interface files under the web server directory and your testing and library files somewhere more protected.

Also, I won't be using any specific PHP framework.  The principles in t
4

2 回答 2

10

这是一个小片段，我总是用来从网页中删除所有隐藏的文本，包括<script>, <style>, <head>等标签之间的所有内容。它还将用单个空格替换所有多次出现的任何类型的空格。

<?php
$url = "http://blog.everymansoftware.com/2011/11/development-setup-for-neo4j-and-php_05.html";
    $fileHeaders = @get_headers($url);
    if( $fileHeaders[0] == "HTTP/1.1 200 OK" || $fileHeaders[0] == "HTTP/1.0 200 OK")
    {
            $content = strip_html_tags(file_url_contents($url));
    }

############################################
//To fetch the $url by using cURL
function file_url_contents($url){
    $crl = curl_init();
    $timeout = 30;
    curl_setopt ($crl, CURLOPT_URL,$url);
    curl_setopt ($crl, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt ($crl, CURLOPT_CONNECTTIMEOUT, $timeout);
    $ret = curl_exec($crl);
    curl_close($crl);
    return $ret;
} //file_url_contents ENDS

//To remove all the hidden text not displayed on a webpage
function strip_html_tags($str){
    $str = preg_replace('/(<|>)\1{2}/is', '', $str);
    $str = preg_replace(
        array(// Remove invisible content
            '@<head[^>]*?>.*?</head>@siu',
            '@<style[^>]*?>.*?</style>@siu',
            '@<script[^>]*?.*?</script>@siu',
            '@<noscript[^>]*?.*?</noscript>@siu',
            ),
        "", //replace above with nothing
        $str );
    $str = replaceWhitespace($str);
    $str = strip_tags($str);
    return $str;
} //function strip_html_tags ENDS

//To replace all types of whitespace with a single space
function replaceWhitespace($str) {
    $result = $str;
    foreach (array(
    "  ", " \t",  " \r",  " \n",
    "\t\t", "\t ", "\t\r", "\t\n",
    "\r\r", "\r ", "\r\t", "\r\n",
    "\n\n", "\n ", "\n\t", "\n\r",
    ) as $replacement) {
    $result = str_replace($replacement, $replacement[0], $result);
    }
    return $str !== $result ? replaceWhitespace($result) : $result;
}
############################
?>

在此处查看实际操作http://codepad.viper-7.com/txIxfE
并输出： http: //pastebin.com/a86jd17s

于 2012-07-24T08:36:33.293 回答
0

strip_tags() will remove everything that is inside < and >. So, e.g., if you have something like

<script type="text/javascript">alert('hello world');</script>

It will be reduced to

alert('hello world');

This will not be executed but just displayed on your site.

Alternatively, try htmlentities() to convert "<" to "&lt" and > to "&gt" so it can be displayed safely without executing anything.

If, instead, your question is about extracting data from tags, better use regular expressions. E.g., if you have something like

<a href="http://www.google.com">Google</a>

you can simply use preg_match() to get the word "Google" from the whole link:

$content='<a href="http://www.google.com">Google</a>';
$regex="#<a href=".*?">(.+?)</a>#";
preg_match($regex,$content,$match);
echo $match[1];

By the way - $match[1] will have the match cleared from any tags anyways, while $match[0] won't. To get more than one match, use preg_match_all().

于 2012-07-24T07:57:21.247 回答