php正则替换标签的实现方法
php正則替換標(biāo)簽的實(shí)現(xiàn)方法:首先通過“strip_tags”函數(shù)剝?nèi)プ址械腍TML標(biāo)簽;然后利用正則表達(dá)式替換標(biāo)簽,代碼語句如“pregreplace("/\\s+/","",str=pregreplace("/\\s+/","")”。
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1.strip_tags(剝?nèi)プ址械?HTML 標(biāo)簽)
strip_tags() 函數(shù)剝?nèi)プ址械?HTML、XML 以及 PHP 的標(biāo)簽。
2.字符串替換
str_replace(array(“ ”,” ”,”\\t”,”\\r\\n”,”\\r”,”\\n”),array(“”,”“,”“,”“,”“,”“)
3.利用正則表達(dá)式(效率稍微低一些)
str=pregreplace("/\\s+/","",str); //過濾多余回車
str=pregreplace("/<[]+/si","<",str); //過濾<__(“<”號后面帶空格)
str=pregreplace("/<??.????>/si","",str); //注釋
str=pregreplace("/<(.??)>/si","",str); //過濾DOCTYPE
str=pregreplace("/<(\\/?html.??)>/si","",str); //過濾html標(biāo)簽
str=pregreplace("/<(\\/?head.??)>/si","",str); //過濾head標(biāo)簽
str=pregreplace("/<(\\/?meta.??)>/si","",str); //過濾meta標(biāo)簽
str=pregreplace("/<(\\/?body.??)>/si","",str); //過濾body標(biāo)簽
str=pregreplace("/<(\\/?link.??)>/si","",str); //過濾link標(biāo)簽
str=pregreplace("/<(\\/?form.??)>/si","",str); //過濾form標(biāo)簽
str=pregreplace("/cookie/si","COOKIE",str); //過濾COOKIE標(biāo)簽
str=pregreplace("/<(applet.??)>(.??)<(\\/applet.??)>/si","",str); //過濾applet標(biāo)簽
str=pregreplace("/<(\\/?applet.??)>/si","",str); //過濾applet標(biāo)簽
str=pregreplace("/<(style.??)>(.??)<(\\/style.??)>/si","",str); //過濾style標(biāo)簽
str=pregreplace("/<(\\/?style.??)>/si","",str); //過濾style標(biāo)簽
str=pregreplace("/<(title.??)>(.??)<(\\/title.??)>/si","",str); //過濾title標(biāo)簽
str=pregreplace("/<(\\/?title.??)>/si","",str); //過濾title標(biāo)簽
str=pregreplace("/<(object.??)>(.??)<(\\/object.??)>/si","",str); //過濾object標(biāo)簽
str=pregreplace("/<(\\/?objec.??)>/si","",str); //過濾object標(biāo)簽
str=pregreplace("/<(noframes.??)>(.??)<(\\/noframes.??)>/si","",str); //過濾noframes標(biāo)簽
str=pregreplace("/<(\\/?noframes.??)>/si","",str); //過濾noframes標(biāo)簽
str=pregreplace("/<(i?frame.??)>(.??)<(\\/i?frame.??)>/si","",str); //過濾frame標(biāo)簽
str=pregreplace("/<(\\/?i?frame.??)>/si","",str); //過濾frame標(biāo)簽
str=pregreplace("/<(script.??)>(.??)<(\\/script.??)>/si","",str); //過濾script標(biāo)簽
str=pregreplace("/<(\\/?script.??)>/si","",str); //過濾script標(biāo)簽
str=pregreplace("/javascript/si","Javascript",str); //過濾script標(biāo)簽
str=pregreplace("/vbscript/si","Vbscript",str); //過濾script標(biāo)簽
str=pregreplace("/on([a?z]+)\\s?=/si","On1=",str); //過濾script標(biāo)簽
str=preg_replace("/&#/si","&#",str); //過濾script標(biāo)簽,如javAsCript:alert(
str=pregreplace("/<(\\/?.??)>/si","",str);//匹配任意html標(biāo)簽方式
this?>content=pregreplace("/<(\\/?.??)>/si","",this->content);//過濾大多數(shù)的html標(biāo)簽
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