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PHP获取当前相对于域名的目录,PHP获取当前目录

本文转载自:??? http://blog.163.com/cristianojzhou@126/blog/static/166335404201122322635868/

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http://127.0.0.1/dev/classd/ index.php/download
比如这个地址,我想得到红色区域的地址用于生成站内的链接,名为 baseurl。
用 $_SERVER['SCRIPT_NAME'] 就可以了, $_SERVER['SCRIPT_NAME'] 是当前正在访问的PHP文件的相对路径,只要如下稍作处理:

//从$_SERVER['SCRIPT_NAME']中获取目录部分,并且替换dirname函数可能出现的反斜杠问题 ??

$baseUrl ?=? str_replace ( '\\',' / ',dirname($_SERVER[' SCRIPT_NAME '])); ?

//保证为空时能返回可以使用的正常值 ?

$baseUrl?=?empty($baseUrl)???' / '?:?' / '.trim($baseUrl,' / ').' /';??

这样就可以正常获取到 /dev/classd/ 这部分的目录地址了。

顺 便看了一下 Zend Framework 的 baseUrl() 函数,结果一看那么一大堆代码就没再继续看了,我就想不通同样的功能他用了一大堆一大堆的代码,从$_SERVER里获取了一堆,然后中间经过两三个类, 四五个方法才最终被我们直接调用,除了中间有三行是获取当前的PHP文件以外,其它都是没用和无谓的处理,ZF本身运行的已经够慢的了,这是什么一个意思 呢。

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