PHP获取当前路径和目录的示例
代码如下 | |
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(注意: $HTTP_SERVER_VARS 和 $_SERVER 是不同的变量,PHP 处理它们的方式不同。)如果设置了 register_globals 指令,这些变量也在所有脚本中可用;也就是,分离了 $_SERVER 和 $HTTP_SERVER_VARS 数组。
$_SERVER['HTTP_HOST'] 取得当前请求的Host:头部内容
$_SERVER['PHP_SELF']这可能是我们最为经常用到的了,它返回当前调用 的页的文件名,如果是http://localhost/test/2005/test.php, 那么将会返回/test/2005/test.php
$_SERVER['SCRIPT_NAME']它将返回包含当前脚本的路径。这在页面需要指向自己时非常有用
$_SERVER['SCRIPT_FILENAME']它将返回当前文件所在的绝对路径信息
$_SERVER['REQUEST_URI']返回访问此页面所需的URI,包括"/"
当然还有许多路径函数:
dirname(),返回路径信息中的目录部分,前面是带有"/"的
basename()返回路径中的基本的文件名部分,当然也可以设置后缀来控制输出。
realpath(),返回路径信息的绝对规范化的路径

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