How does include path resolution work in require_once?

[joymis]

Hello,

I have a web dirs like this

/
obj/
    a.php
    b.php
    c.php
test/
    d.php

Contents of these files:

d.php:

require_once '../obj/a.php';

a.php:

require_once 'b.php';

b.php:

require_once 'c.php';

then I run d.php, the log display:

PHP Warning:  require_once(c.php): failed to open stream: No such file or directory in /var/www/xxx/test/b.php
PHP Fatal error:  require_once(): Failed opening required 'c.php' (include_path='.:/usr/share/pear:/usr/share/php') in /var/www/xxx/test/b.php

Is there something obvious I'm missing? how do include paths work in PHP?

thanks.

[Gabrielphp]

I think you're missing something to tell us.

I've recreated the same environment as yours and also added an echo "Ok!"; in the c.php and at me it works fine, exactly the same settings as yours.

As i did it, i used Windows to do it, so it might aswell be the thing that you're using linux, and it might be possible that the paths don't work as are working in windows. Try putting the "../obj/c.php"; as path in the b.php althought you have it in the same directory and see if that works, if not then i don't know what should work as on my pc (windows) works just fine.

[justsomeguy]

Since you're only getting an error about c.php and not about b.php, it works like you expect but you probably had a typo somewhere, or you put the file somewhere else by mistake.

[joymis]

Thank you for your help

I tried delete old dir and then upload the same dir and files again, it is can work.

but I still don't know why this happened...

[justsomeguy]

Maybe something happened during the first upload.  There's nothing wrong with the code.