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php - 剥离 html 以删除所有 js/css/html 标签以提供实际文本(显示在浏览器上)以将其用于索引和搜索

转载 作者:行者123 更新时间:2023-12-02 07:06:14 25 4
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我试过 strip_tag 但它仍然保留内联 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,以便我可以将其编入索引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

最佳答案

这是一个我经常用来从网页中删除所有隐藏文本的小片段,包括 <script>, <style>, <head> 之间的所有内容等标签。它还会用一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;
}
############################
?>

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

关于php - 剥离 html 以删除所有 js/css/html 标签以提供实际文本(显示在浏览器上)以将其用于索引和搜索,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/11626319/

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