<pre class="brush:php;toolbar:false">javascript实现：<br/>top.location.href 顶级窗口的地址<br/>this.location.href 当前窗口的地址<br/>PHP实现<br/>#测试网址: http://localhost/blog/testurl.php?id=5<br/>//获取域名或主机地址 <br/>echo $_SERVER['HTTP_HOST']."<br>"; #localhost<br/>//获取网页地址 <br/>echo $_SERVER['PHP_SELF']."<br>"; #/blog/testurl.php<br/>//获取网址参数 <br/>echo $_SERVER["QUERY_STRING"]."<br>"; #id=5<br/>//获取用户代理 <br/>echo $_SERVER['HTTP_REFERER']."<br>"; <br/>//获取完整的url<br/>echo 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];<br/>echo 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'].'?'.$_SERVER['QUERY_STRING'];<br/>#http://localhost/blog/testurl.php?id=5<br/>//包含端口号的完整url<br/>echo 'http://'.$_SERVER['SERVER_NAME'].':'.$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"]; <br/>#http://localhost:80/blog/testurl.php?id=5<br/>//只取路径<br/>$url='http://'.$_SERVER['SERVER_NAME'].$_SERVER["REQUEST_URI"]; <br/>echo dirname($url);<br/>#http://localhost/blog<br/><br/></pre><p>其中的http可以通过<code class="php variable" style="box-sizing: border-box; outline: 0px; border-radius: 4px; overflow-wrap: break-word; color: rgb(51, 51, 51); white-space: normal; background-color: rgb(255, 255, 255);">$_SERVER</code><span style="color: rgb(51, 51, 51); font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif, SimHei, SimSun; background-color: rgb(255, 255, 255);"> </span><code class="php plain" style="box-sizing: border-box; outline: 0px; border-radius: 4px; overflow-wrap: break-word; color: rgb(51, 51, 51); white-space: normal; background-color: rgb(255, 255, 255);">[</code><span style="color: rgb(51, 51, 51); font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif, SimHei, SimSun; background-color: rgb(255, 255, 255);"> </span><code class="php string" style="box-sizing: border-box; outline: 0px; border-radius: 4px; overflow-wrap: break-word; color: rgb(51, 51, 51); white-space: normal; background-color: rgb(255, 255, 255);">"REQUEST_SCHEME"</code><span style="color: rgb(51, 51, 51); font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif, SimHei, SimSun; background-color: rgb(255, 255, 255);"> </span><code class="php plain" style="box-sizing: border-box; outline: 0px; border-radius: 4px; overflow-wrap: break-word; color: rgb(51, 51, 51); white-space: normal; background-color: rgb(255, 255, 255);">]获取</code></p><pre class="brush:php;toolbar:false">//获取当前url<br/>echo $_SERVER [ "REQUEST_SCHEME" ]. '://' . $_SERVER [ "HTTP_HOST" ]. $_SERVER [ "REQUEST_URI" ];</pre><p>参考来源：http://www.thinkphp.cn/topic/45176.html<code class="php plain" style="box-sizing: border-box; outline: 0px; border-radius: 4px; overflow-wrap: break-word; color: rgb(51, 51, 51); white-space: normal; background-color: rgb(255, 255, 255);"></code><br/></p>
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