PHP - 使用require_once/include/require，路径是相对于什么的?
当在 "index.php" 上时，我执行 require_once("/all_fns.php").
when on "index.php", I do require_once("/all_fns.php").
"all_fns.php" 本身需要具有相对于 all_fns.php(本身)路径的文件.
"all_fns.php" itself requires files with paths relative to all_fns.php (itself).
我的问题是，我应该在 all_fns 上写相对于 all_fns.php 还是 index.php 的路径?
My question is, should I write the paths on all_fns relative to all_fns.php or to index.php?
这让我很困惑，想把它弄清楚.
This is all very confusing to me and wanted to get it straight.
推荐答案
它们被视为相对于 index.php.
如果你需要引用一个相对于包含的文件，使用
If you need to reference a file relative to the include, use
__DIR__."/relative/file.php";
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