Bug #81119 [NEW]: GMP operators throw errors with wrong parameter names

From: Date: Wed, 09 Jun 2021 15:28:03 +0000
Subject: Bug #81119 [NEW]: GMP operators throw errors with wrong parameter names
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-234311@lists.php.net to get a copy of this message
From:             lauri dot kentta+php-bugs at gmail dot com
Operating system: 
PHP version:      master-Git-2021-06-09 (Git)
Package:          GNU MP related
Bug Type:         Bug
Bug description:GMP operators throw errors with wrong parameter names

Description:
------------
When using GMP class operators such as + or < with an invalid second
value (such as non-numeric string or array), the exception picks up
parameter name from the outer scope. Operator parameter probably doesn't
have any meaningful name. The bad messages come from ext/gmp/gmp.c,
function convert_to_gmp, lines 623 and 632.

Just run (gmp_init(1) < "x") inside a function, and you'll find the
second function parameter name in the error message.

Test script:
---------------
<?php
function test($f) {
  try {
    $f();
    echo "No error?\n";
  } catch (TypeError|ValueError $e) {
    if (strpos($e->getMessage(), '($WRONG_SCOPE_')) {
      echo "Bad error! ", $e->getMessage(), "\n";
    } else {
      echo "Good error.\n";
    }
  }
}
test(fn($WRONG_SCOPE_1 = 0, $WRONG_SCOPE_2 = 0) => gmp_init(1) < "x");
test(fn($WRONG_SCOPE_1 = 0, $WRONG_SCOPE_2 = 0) => gmp_init(1) < []);
test(fn($WRONG_SCOPE_1 = 0, $WRONG_SCOPE_2 = 0) => gmp_init(1) + "x");
test(fn($WRONG_SCOPE_1 = 0, $WRONG_SCOPE_2 = 0) => gmp_init(1) + []);


Expected result:
----------------
Good error.
Good error.
Good error.
Good error.

Actual result:
--------------
Bad error! {closure}(): Argument #2 ($WRONG_SCOPE_2) is not an integer
string
Bad error! {closure}(): Argument #2 ($WRONG_SCOPE_2) must be of type
GMP|string|int, array given
Bad error! {closure}(): Argument #2 ($WRONG_SCOPE_2) is not an integer
string
Bad error! {closure}(): Argument #2 ($WRONG_SCOPE_2) must be of type
GMP|string|int, array given

-- 
Edit bug report at https://bugs.php.net/bug.php?id=81119&edit=1
-- 
Fix committed:                    https://bugs.php.net/fix.php?id=81119&r=fixed
Fixed in release:                 https://bugs.php.net/fix.php?id=81119&r=alreadyfixed
Need backtrace:                   https://bugs.php.net/fix.php?id=81119&r=needtrace
Need Reproduce Script:            https://bugs.php.net/fix.php?id=81119&r=needscript
Try newer version:                https://bugs.php.net/fix.php?id=81119&r=oldversion
Not developer issue:              https://bugs.php.net/fix.php?id=81119&r=support
Expected behavior:                https://bugs.php.net/fix.php?id=81119&r=notwrong
Not enough info:                  https://bugs.php.net/fix.php?id=81119&r=notenoughinfo
Submitted twice:                  https://bugs.php.net/fix.php?id=81119&r=submittedtwice
register_globals:                 https://bugs.php.net/fix.php?id=81119&r=globals
PHP version support discontinued: https://bugs.php.net/fix.php?id=81119&r=phptooold
Daylight Savings:                 https://bugs.php.net/fix.php?id=81119&r=dst
IIS Stability:                    https://bugs.php.net/fix.php?id=81119&r=isapi
Install GNU Sed:                  https://bugs.php.net/fix.php?id=81119&r=gnused
Floating point limitations:       https://bugs.php.net/fix.php?id=81119&r=float
No Zend Extensions:               https://bugs.php.net/fix.php?id=81119&r=nozend
MySQL Configuration Error:        https://bugs.php.net/fix.php?id=81119&r=mysqlcfg


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