PHP实现HTML转UBB

来源：互联网发布：软件项目经理工作流程编辑：程序博客网时间：2024/05/01 16:37

/**
* 解析HTML为UBB函数
*
* @param string $str 要解析的字符串
* @return string
*/
function parse($str)
{
  $str = str_replace("/n",'',$str);
  $str = preg_replace("//<A[^>]+HREF=/"([^/"]+)/"[^>]*/>(.*?)<//a/>/i","[url=$1]$2[/url]",$str);
  $str = preg_replace("//<font(.*?)color=/"#([^ >]+)/"(.*?)/>(.*?)<//font>/i","<font$1$3>[color=$2]$4[/color]</font>",$str);
  $str = preg_replace("//<font(.*?)face=/"([^ >]+)/"(.*?)/>(.*?)<//font>/i","<font$1$3>[face=$2]$4[/face]</font>",$str);
  $str = preg_replace("//<font(.*?)size=/"([^ >]+)/"(.*?)/>(.*?)<//font>/i","[size=$2]$4[/size]",$str);
  $str = preg_replace("//<img[^>]+src=/"([^/"]+)/"[^>]*/>/i","[img]$1[/img]",$str);
  $str = preg_replace("//<DIV[^>]+ALIGN=/"([^/"]+)/"[^>]*/>(.*?)<//DIV/>/i","[align=$1]$2[/align]",$str);
  $str = preg_replace("//<([//]?)u/>/i","[$1u]",$str);
  $str = preg_replace("//<([//]?)em/>/i","[$1I]",$str);
  $str = preg_replace("//<([//]?)strong/>/i","[$1b]",$str);
  $str = preg_replace("//<([//]?)b(.*?)/>/i","[$1b]",$str);
  $str = preg_replace("//<([//]?)i/>/i","[$1i]",$str);
  $str = preg_replace("/<[^>]*?>/i","",$str);
  return $str;
}
//其中对<B>内包含其它的属性进行了处理，对<U>、<EM>、<I>、<STRONG>没有进行处理。
//注：另写了一个用XML解析的方法来实现，但其容错性较差，对要进行转换的HTML文档要求太高，实用性较低。故重新用正则替换来实现。
//修改自一段ASP的代码：原ASP代码如下
<%
function html2ubb(l1)
    if len(trim(l1))>0 then
    else
        exit function
    end if
    dim l4,I1,I2,I3
    dim i,I4:I4=array(16,19,21,24,32,45)
    I1=l1
    set I2=new regexp
        I2.global=true
        I2.ignorecase=true'忽略大小写
        I2.pattern="/r":I1=I2.replace(I1,"")
        I2.pattern="on(load|click|dbclick|mouseover|mousedown|mouseup)=""[^""]+""":I1=I2.replace(I1,"")
        I2.pattern="<script[^>]*?>([/w/W]*?)<//script>":I1=I2.replace(I1,"")
        I2.pattern="<a[^>]+href=""([^""]+)""[^>]*>(.*?)<//a>":I1=I2.replace(I1,"[url=$1]$2[/url]")
        I2.pattern="<font[^>]+color=([^ >]+)[^>]*>(.*?)<//font>":I1=I2.replace(I1,"[color=$1]$2[/color]")
        I2.pattern="<img[^>]+src=""([^""]+)""[^>]*>":I1=I2.replace(I1,"[img]$1[/img]")
        I2.pattern="<([//]?)b>":I1=I2.replace(I1,"[$1b]")
        I2.pattern="<([//]?)strong>":I1=I2.replace(I1,"[$1b]")
        I2.pattern="<([//]?)u>":I1=I2.replace(I1,"[$1u]")
        I2.pattern="<([//]?)i>":I1=I2.replace(I1,"[$1i]")
        I2.pattern=" ":I1=I2.replace(I1," ")
        I2.pattern="&":I1=I2.replace(I1,"&")
        I2.pattern="""":I1=I2.replace(I1,"""")
        I2.pattern="<":I1=I2.replace(I1,"<")
        I2.pattern=">":I1=I2.replace(I1,">")
        I2.pattern="<br />":I1=I2.replace(I1,vbcrlf)
        I2.pattern="<[^>]*?>":I1=I2.replace(I1,"")
        I2.pattern="/n+":I1=I2.replace(I1,vbcrlf)
    set I2=nothing
    html2ubb=I1

end function

response.write html2ubb("蓝雨设计<img src=""logo.gif"">")
%>