PHP目录名返回符号链接路径 [英] PHP dirname returns symlink path

问题描述

说我有一个从'/one/directory/'到'/two/directory/'的符号链接.

Say I have a symlink from '/one/directory/' to '/two/directory/'.

如果我echo dirname(dirname(\__FILE__))，它将返回'/one/directory/'.

返回'/two/directory'的最佳方法是什么?

What is the best method to return '/two/directory'?

用法示例:

虚拟主机'example.com'指向''/two/directory'

Vhost 'example.com' pointing to `'/two/directory'

example.com/hello_world.php

example.com/hello_world.php

<?php 
    echo dirname(dirname(__FILE__));
?>

返回: '/one/directory'

预期结果: '/two/directory'

推荐答案

使用readlink函数吗? http://php.net/manual/zh/function.readlink.php

您可以使用is_link检查它是否是符号链接: http://php.net/manual/en/function.is-link.php

You can check if it is a symlink with is_link: http://php.net/manual/en/function.is-link.php

if (is_link($link)) {
    echo(readlink($link));
}

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