一、用http头信息
也就是用PHP的HEADER函数。PHP里的HEADER函数的作用就是向浏览器发出由HTTP协议规定的本来应该通过WEB服务器的控制指令,例如声明返回信息的类型("Context-type: xxx/xxx"),页面的属性("No cache", "Expire")等等。
用HTTP头信息进行PHP重定向到另外一个页面的方法如下:
<OL class=dp-xml><LI class=alt><SPAN><STRONG><FONT color=#006699><SPAN class=tag><?</SPAN><SPAN class=tag-name>php</SPAN></FONT></STRONG><SPAN> </SPAN></SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>url</FONT></SPAN><SPAN> = </SPAN><SPAN class=attribute-value><FONT color=#0000ff>"www.baidu.com"</FONT></SPAN><SPAN>; </SPAN></SPAN><LI class=alt><SPAN>if (!empty($url)) </SPAN><LI class=""><SPAN>{ </SPAN><LI class=alt><SPAN> Header("HTTP/1.1 303 See Other"); //这条语句可以不写 </SPAN><LI class=""><SPAN> Header("Location: $url"); </SPAN><LI class=alt><SPAN>} </SPAN><LI class=""><SPAN></SPAN><SPAN class=tag><STRONG><FONT color=#006699>?></FONT></STRONG></SPAN><SPAN> </SPAN></SPAN></LI></OL>注意一下,"Localtion:"后面有一个空格。
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二、用HTML标记PHP重定向
用HTML标记,就是用META的REFRESH标记,举例如下:
<OL class=dp-xml><LI class=alt><SPAN><STRONG><FONT color=#006699><SPAN class=tag><?</SPAN><SPAN class=tag-name>php</SPAN></FONT></STRONG><SPAN> </SPAN></SPAN><LI class=""><SPAN>if (!empty($url)) </SPAN><LI class=alt><SPAN>{ </SPAN><LI class=""><SPAN> echo "</SPAN><STRONG><FONT color=#006699><SPAN class=tag><</SPAN><SPAN class=tag-name>META</SPAN></FONT></STRONG><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>HTTP-EQUIV</FONT></SPAN><SPAN>="Refresh" </SPAN><SPAN class=attribute><FONT color=#ff0000>CONTENT</FONT></SPAN><SPAN>="0;</SPAN><SPAN class=attribute><FONT color=#ff0000>URL</FONT></SPAN><SPAN>=$url"</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN>"; </SPAN></SPAN><LI class=alt><SPAN>} </SPAN><LI class=""><SPAN></SPAN><SPAN class=tag><STRONG><FONT color=#006699>?></FONT></STRONG></SPAN><SPAN> </SPAN></SPAN></LI></OL>三、用脚本来实现PHP重定向
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举例如下:
<OL class=dp-xml><LI class=alt><SPAN><SPAN class=tag><STRONG><FONT color=#006699><?</FONT></STRONG></SPAN><SPAN> </SPAN></SPAN><LI class=""><SPAN></SPAN><SPAN class=tag-name><STRONG><FONT color=#006699>if</FONT></STRONG></SPAN><SPAN> (isset($url)) </SPAN></SPAN><LI class=alt><SPAN>{ </SPAN><LI class=""><SPAN> echo "</SPAN><STRONG><FONT color=#006699><SPAN class=tag><</SPAN><SPAN class=tag-name>SCRIPT</SPAN></FONT></STRONG><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>LANGUAGE</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"JavaScript"</FONT></SPAN><SPAN class=tag><STRONG><FONT color=#006699>></FONT></STRONG></SPAN><SPAN>"; </SPAN></SPAN><LI class=alt><SPAN> echo "</SPAN><SPAN class=attribute><FONT color=#ff0000>location.href</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>'$url'</FONT></SPAN><SPAN>"; </SPAN></SPAN><LI class=""><SPAN> echo "</SPAN><STRONG><FONT color=#006699><SPAN class=tag></</SPAN><SPAN class=tag-name>SCRIPT</SPAN><SPAN class=tag>></SPAN></FONT></STRONG><SPAN>"; </SPAN></SPAN><LI class=alt><SPAN>} </SPAN><LI class=""><SPAN></SPAN><SPAN class=tag><STRONG><FONT color=#006699>?></FONT></STRONG></SPAN><SPAN> </SPAN></SPAN></LI></OL><OL class=dp-xml><LI class=alt><SPAN><STRONG><FONT color=#006699><SPAN class=tag><?</SPAN><SPAN class=tag-name>php</SPAN></FONT></STRONG><SPAN> echo "</SPAN><STRONG><FONT color=#006699><SPAN class=tag><</SPAN><SPAN class=tag-name>script</SPAN><SPAN class=tag>></SPAN></FONT></STRONG><SPAN class=attribute><FONT color=#ff0000>window.location</FONT></SPAN><SPAN> ="$url";</SPAN><STRONG><FONT color=#006699><SPAN class=tag></</SPAN><SPAN class=tag-name>script</SPAN><SPAN class=tag>></SPAN></FONT></STRONG><SPAN>";</SPAN><SPAN class=tag><STRONG><FONT color=#006699>?></FONT></STRONG></SPAN><SPAN> </SPAN></SPAN></LI></OL>
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