{"id":853,"date":"2021-03-06T10:26:54","date_gmt":"2021-03-06T02:26:54","guid":{"rendered":"http:\/\/www.tra56.com\/?p=853"},"modified":"2021-03-06T10:27:09","modified_gmt":"2021-03-06T02:27:09","slug":"853","status":"publish","type":"post","link":"https:\/\/www.tra56.com\/853.html","title":{"rendered":"php\u83b7\u53d6\u591a\u6b21\u8df3\u8f6c\u540e\u771f\u5b9e\u7684url\u5730\u5740"},"content":{"rendered":"<pre class=\"brush:php;toolbar:false\">&lt;?php\r\n\/*\r\n&nbsp;&nbsp;&nbsp;&nbsp;\u83b7\u53d6\u591a\u6b21\u8df3\u8f6c\u540e\u771f\u5b9e\u7684url\r\n&nbsp;&nbsp;&nbsp;&nbsp;@param&nbsp;str&nbsp;$url&nbsp;\u67e5\u8be2\r\n&nbsp;&nbsp;&nbsp;&nbsp;$return&nbsp;str&nbsp;&nbsp;\u5b9a\u5411\u540e\u7684url\u7684\u771f\u5b9eurl\r\n&nbsp;*\/\r\nfunction&nbsp;getrealurl($url){\r\n&nbsp;&nbsp;&nbsp;&nbsp;$header&nbsp;=&nbsp;@get_headers($url,1);&nbsp;&nbsp;\/\/\u9ed8\u8ba4\u7b2c\u4e8c\u4e2a\u53c2\u65700\uff0c\u53ef\u90091\uff0c\u8fd4\u56de\u5173\u8054\u6570\u7ec4\r\n&nbsp;&nbsp;&nbsp;&nbsp;if(!$header){\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;exit(&#39;\u65e0\u6cd5\u6253\u5f00\u6b64\u7f51\u7ad9&#39;.$url);\r\n&nbsp;&nbsp;&nbsp;&nbsp;}\r\n&nbsp;&nbsp;&nbsp;&nbsp;\/\/var_dump($header);\r\n&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(strpos($header[0],&#39;301&#39;)&nbsp;||&nbsp;strpos($header[0],&#39;302&#39;))&nbsp;{\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if(is_array($header[&#39;Location&#39;]))&nbsp;{\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;$header[&#39;Location&#39;][count($header[&#39;Location&#39;])-1];\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}else{\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;$header[&#39;Location&#39;];\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}\r\n&nbsp;&nbsp;&nbsp;&nbsp;}else&nbsp;{\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;$url;\r\n&nbsp;&nbsp;&nbsp;&nbsp;}\r\n}\r\n&nbsp;\r\n$url&nbsp;=&nbsp;&#39;https:\/\/git.io\/JtLZy&#39;;\r\n$url&nbsp;=&nbsp;getrealurl($url);\r\necho&nbsp;&#39;\u771f\u5b9e\u7684url\u4e3a\uff1a&#39;.$url;<\/pre>\n<pre class=\"brush:php;toolbar:false\">&lt;?php\r\n\/*\r\n&nbsp;&nbsp;&nbsp;&nbsp;\u83b7\u53d6\u591a\u6b21\u8df3\u8f6c\u540e\u771f\u5b9e\u7684url\r\n&nbsp;&nbsp;&nbsp;&nbsp;@param&nbsp;str&nbsp;$url&nbsp;\u67e5\u8be2\r\n&nbsp;&nbsp;&nbsp;&nbsp;$return&nbsp;str&nbsp;&nbsp;\u5b9a\u5411\u540e\u7684url\u7684\u771f\u5b9eurl\r\n&nbsp;*\/\r\nfunction&nbsp;getrealurl($url){\r\n&nbsp;&nbsp;&nbsp;&nbsp;$header&nbsp;=&nbsp;@get_headers($url,1);&nbsp;&nbsp;\/\/\u9ed8\u8ba4\u7b2c\u4e8c\u4e2a\u53c2\u65700\uff0c\u53ef\u90091\uff0c\u8fd4\u56de\u5173\u8054\u6570\u7ec4\r\n&nbsp;&nbsp;&nbsp;&nbsp;if(!$header){\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;exit(&#39;\u65e0\u6cd5\u6253\u5f00\u6b64\u7f51\u7ad9&#39;.$url);\r\n&nbsp;&nbsp;&nbsp;&nbsp;}\r\n&nbsp;&nbsp;&nbsp;&nbsp;\/\/var_dump($header);\r\n&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(strpos($header[0],&#39;301&#39;)&nbsp;||&nbsp;strpos($header[0],&#39;302&#39;))&nbsp;{\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if(is_array($header[&#39;Location&#39;]))&nbsp;{\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;$header[&#39;Location&#39;][count($header[&#39;Location&#39;])-1];\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}else{\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;$header[&#39;Location&#39;];\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}\r\n&nbsp;&nbsp;&nbsp;&nbsp;}else&nbsp;{\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;$url;\r\n&nbsp;&nbsp;&nbsp;&nbsp;}\r\n}\r\n&nbsp;\r\n$url&nbsp;=&nbsp;&#39;https:\/\/git.io\/JtLZy&#39;;\r\n$url&nbsp;=&nbsp;getrealurl($url);\r\necho&nbsp;&#39;\u771f\u5b9e\u7684url\u4e3a\uff1a&#39;.$url;<\/pre>\n<p><span style=\"font-family: &quot;PingFang SC&quot;, &quot;Microsoft YaHei&quot;, &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; 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