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archived-php-src/ext/mbstring/tests/bug43994.phpt
Nikita Popov b10416a652 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.
2021-02-11 21:46:13 +01:00

70 lines
1.7 KiB
PHP

--TEST--
Test mb_ereg() function : mb_ereg 'successfully' matching incorrectly
--SKIPIF--
<?php
extension_loaded('mbstring') or die('skip');
function_exists('mb_ereg') or die("skip mb_ereg() is not available in this build");
?>
--FILE--
<?php
/*
* mb_ereg 'successfully' matching incorrectly:
* Bug now seems to be fixed - error message is now generated when an 'empty'
* pattern is supplied to mb_ereg. Similar error message to ereg().
*/
$inputs = array(false, FALSE, "", '');
$iterator = 1;
foreach($inputs as $input) {
if(@is_array($mb_regs)){
$mb_regs = '';
}
echo "\n-- Iteration $iterator --\n";
echo "Without \$regs arg:\n";
try {
var_dump( mb_ereg($input, 'hello, world') );
} catch (\ValueError $e) {
echo $e->getMessage() . \PHP_EOL;
}
echo "With \$regs arg:\n";
try {
var_dump(mb_ereg($input, 'hello, world', $mb_regs));
} catch (\ValueError $e) {
echo $e->getMessage() . \PHP_EOL;
}
var_dump($mb_regs);
$iterator++;
};
?>
--EXPECT--
-- Iteration 1 --
Without $regs arg:
mb_ereg(): Argument #1 ($pattern) must not be empty
With $regs arg:
mb_ereg(): Argument #1 ($pattern) must not be empty
NULL
-- Iteration 2 --
Without $regs arg:
mb_ereg(): Argument #1 ($pattern) must not be empty
With $regs arg:
mb_ereg(): Argument #1 ($pattern) must not be empty
NULL
-- Iteration 3 --
Without $regs arg:
mb_ereg(): Argument #1 ($pattern) must not be empty
With $regs arg:
mb_ereg(): Argument #1 ($pattern) must not be empty
NULL
-- Iteration 4 --
Without $regs arg:
mb_ereg(): Argument #1 ($pattern) must not be empty
With $regs arg:
mb_ereg(): Argument #1 ($pattern) must not be empty
NULL