Description:
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PHP script current working directory being converted to the real path cause error in relative files inclusion (see also bug #46814).

As one can see in the reproduce code the script's getcwd() says '/tmp/a' although the script was run from '/tmp/b/c'. As a result the require() instruction fails because it can't find any '/inc.php'. '/tmp/b/inc.php' would have been found if the original symlinked path was preserved.

Reproduce code:
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~$ cd /tmp
/tmp$ mkdir a
/tmp$ mkdir b
/tmp$ echo '<?php echo getcwd(); require "../inc.php";?>' > a/test.php
/tmp$ echo '<?php echo "ok\n";?>' > b/inc.php
/tmp$ ln -s /tmp/a b/c
/tmp$ cd b/c/
/tmp/b/c$ php -f test.php





Expected result:
----------------
ok

Actual result:
--------------
/tmp/a
Warning: require(../inc.php): failed to open stream: No such file or
directory in /tmp/a/test.php on line 1

Fatal error: require(): Failed opening required '../inc.php' (include_path='.:/usr/share/php:/usr/share/pear') in /tmp/a/test.php on line 1