Php 剥离html以删除所有js/css/html标记，从而提供实际文本（显示在浏览器上）以用于索引和搜索

我尝试过strip#u标记，但它仍然保留内联js:（function（）{..}）和内联css#按钮{}

我需要从html中提取纯文本，而不需要任何JS函数、样式或标记，这样我就可以为它编制索引并用于搜索功能

html2text似乎也不能解决这个问题

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：

$content=

(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

将删除中的所有内容。例如，如果你有

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

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

这将不会执行，而只是显示在您的网站上

---

或者，尝试转换“这是一个小片段，我总是使用它来删除网页中所有隐藏的文本，包括

、

等标记之间的所有内容。它还将用一个空格替换任何类型的多个空格

<?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;
}
############################
?>

在这里看到它的实际作用

---

和输出：

请与内嵌JS和CSSI共享您的HTML代码。CSSI需要编写一个通用函数，该函数可以接受任何url并删除所有非文本数据（HTML标记/JS/css）因此，这可以给一个索引搜索引擎。Preg_match不是一个解决方案，因为我可能需要过滤的可能性太多。我不想最后写另一个库，它本身就是一个完整的项目！仍然不考虑内联/嵌入式javascripts/css:（function（）{var a=window，c=“jstimening”，d=“tick“var e=function（b）{this.t={}；this.tick=function（b，o，f）{f=void 0！=f？f:（新日期）.getTime（）；this.t[b]=[f，o]}；thisd}，h=newe；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.restart；0&（jd；var；var=！p=！load0）{a、 addEventListener？a.addEventListener（“滚动”，q，！1）：a.attachEvent（“onscroll，q）；}）（）；这是使用给定url执行的代码：这是输出文本：查看此输出文本，让我知道哪些行/节是不需要的。请按行号参考。请注意，您需要通过此函数传递原始字符串，而不是使用strip_HTML（）后获得的字符串。因为在后一种情况下，

，

等标识符标记已被剥离，因此我的函数无法区分隐藏和显示的文本。在回答您的第一条评论时，在探测时，我发现您正在引用的框架

function（）{var a=window，c="jsti….

位于源代码页的第7行，包含在

&

标记中。在

执行
strip\u标记后，请不要将整个字符串传递给我的函数
。请将字符串原封不动地发送给所有
标题、样式、脚本标记
。感谢这段漂亮的代码，它帮助我删除了JSA从字符串中删除css。
$content='<a href="http://www.google.com">Google</a>';
$regex="#<a href=".*?">(.+?)</a>#";
preg_match($regex,$content,$match);
echo $match[1];

<?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;
}
############################
?>