PHP获取当前页面的因特网址

<span style="color: #0000ff;">function</span><span style="color: #000000;"> GetCurUrl(){　　</span><span style="color: #800080;">$url </span>= 'http://'<span style="color: #000000;">;　　</span><span style="color: #0000ff;">if</span>(<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$_SERVER</span>['HTTPS']) AND <span style="color: #800080;">$_SERVER</span>['HTTPS'] == 'on'<span style="color: #000000;">)　　{　　　　</span><span style="color: #800080;">$url</span> = 'https://'<span style="color: #000000;">;　　}　　</span><span style="color: #0000ff;">if</span>(<span style="color: #800080;">$_SERVER</span>['SERVER_PORT'] != '80'<span style="color: #000000;">)　　{　　　　</span><span style="color: #800080;">$url</span> .= <span style="color: #800080;">$_SERVER</span>['HTTP_HOST'].':'.<span style="color: #800080;">$_SERVER</span>['SERVER_PORT'].<span style="color: #800080;">$_SERVER</span>['REQUEST_URI'<span style="color: #000000;">];　　}　　</span><span style="color: #0000ff;">else</span><span style="color: #000000;">　　{　　　　</span><span style="color: #800080;">$url</span> .= <span style="color: #800080;">$_SERVER</span>['HTTP_HOST'].<span style="color: #800080;">$_SERVER</span>['REQUEST_URI'<span style="color: #000000;">];　　}　　</span><span style="color: #0000ff;">return</span> <span style="color: #800080;">$url</span><span style="color: #000000;">;}</span>