php正規替換標籤的實作方法

php正規取代標籤的實作方法：首先透過「strip_tags」函數剝除字串中的HTML標籤；然後利用正規表示式取代標籤，程式碼語句如「pregreplace("/\s /", "",str=pregreplace("/\s /","")」。

推薦：《PHP影片教學》

#1.strip_tags(剝去字串中的HTML 標籤)

strip_tags () 函數剝去字串中的HTML、XML 以及PHP 的標籤。

2.字串替換

str_replace(array(“ ”,” ”,”\t” ,”\r\n”,”\r”,”\n”),array(“”,”“,”“,”“,”“,”“)

3.利用正規表達式(效率稍微低一些)

str=pregreplace("/\s /","",str); //過濾多餘回車

str=pregreplace("/<[] /si","<",str); //過濾<__(“<”號碼後面有空格)

str=pregreplace("/<−−.∗?−−>/si","",str); //註解

str=pregreplace("/< ;(.∗?)>/si","",str); //過濾DOCTYPE

#str=pregreplace("/<(\/?html.∗? )>/si","",str); //過濾html標籤

#str=pregreplace("/<(\/?head.∗?)>/ si","",str); //過濾head標籤

str=pregreplace("/<(\/?meta.∗?)>/si"," ",str); //過濾meta標籤

str=pregreplace("/<(\/?body.∗?)>/si","",str) ; //過濾body標籤

str=pregreplace("/<(\/?link.∗?)>/si","",str); //過濾link標籤

str=pregreplace("/<(\/?form.∗?)>/si","",str); //過濾form標籤

str=pregreplace("/cookie/si","COOKIE",str); //過濾COOKIE標籤

str=pregreplace(" /<(applet.∗?)>(.∗?)<(\/applet.∗?)>/si","",str); //過濾applet標籤

#str=pregreplace("/<(\/?applet.∗?)>/si","",str); //過濾applet標籤

str=pregreplace("/<(style.∗?)>(.∗?)<(\/style.∗?)>/si","",str); //過濾style標籤

str=pregreplace("/<(\/?style.∗?)>/si","",str); //過濾style標籤

str=pregreplace("/<(title.∗?)>(.∗?)<(\/title.∗?)>/si","",str); //過濾title標籤

str=pregreplace("/<(\/?title.∗?)>/si","",str); //過濾title標籤

str=pregreplace("/<(object.∗?)>(.∗?)<(\/object.∗?)>/si", "",str); //過濾object標籤

str=pregreplace("/<(\/?objec.∗?)>/si","",str ); //過濾object標籤

str=pregreplace("/<(noframes.∗?)>(.∗?)<(\/noframes.∗?) >/si","",str); //過濾noframes標籤

#str=pregreplace("/<(\/?noframes.∗?)>/si ","",str); //過濾noframes標籤

str=pregreplace("/<(i?frame.∗?)>(.∗?)< (\/i?frame.∗?)>/si","",str); //過濾frame標籤

str=pregreplace("/<(\/ ?i?frame.∗?)>/si","",str); //過濾frame標籤

#str=pregreplace("/<(script.∗? )>(.∗?)<(\/script.∗?)>/si","",str); //過濾script標籤

str=pregreplace("/<(\/?script.∗?)>/si","",str); //過濾script標籤

str=pregreplace("/javascript/si","Javascript",str); //過濾script標籤

str=pregreplace("/vbscript/si","Vbscript ",str); //過濾script標籤

str=pregreplace("/on([a−z] )\s∗=/si","On1=",str ); //過濾script標籤

str=preg_replace("//si","&＃",str); //過濾script標籤，如javAsCript:alert(

str=pregreplace("/<(\/?.∗?)>/si","",str);//符合任意html標籤方式

this−>content=pregreplace("/<(\/?.∗?)>/si","",this->content);//過濾大多數的html標籤

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