Deprecate passing null to non-nullable arg of internal function

This deprecates passing null to non-nullable scale arguments of
internal functions, with the eventual goal of making the behavior
consistent with userland functions, where null is never accepted
for non-nullable arguments.

This change is expected to cause quite a lot of fallout. In most
cases, calling code should be adjusted to avoid passing null. In
some cases, PHP should be adjusted to make some function arguments
nullable. I have already fixed a number of functions before landing
this, but feel free to file a bug if you encounter a function that
doesn't accept null, but probably should. (The rule of thumb for
this to be applicable is that the function must have special behavior
for 0 or "", which is distinct from the natural behavior of the
parameter.)

RFC: https://wiki.php.net/rfc/deprecate_null_to_scalar_internal_arg

Closes GH-6475.

1 files changed, 1 insertions, 1 deletions

diff --git a/ext/standard/tests/file/glob_variation3.phpt b/ext/standard/tests/file/glob_variation3.phpt
index 4bf008a9a7..891bbb6fa1 100644
--- a/ext/standard/tests/file/glob_variation3.phpt
+++ b/ext/standard/tests/file/glob_variation3.phpt
@@ -4,7 +4,7 @@ Test glob() function: ensure no platform difference
 <?php
 $path = __DIR__;
 
-ini_set('open_basedir', NULL);
+ini_set('open_basedir', '');
 
 var_dump(glob("$path/*.none"));
 var_dump(glob("$path/?.none"));