Bug #80900 [NEW]: switch statement behavior inside function
From: srohde at newshour dot org
Operating system: OSX
PHP version: 7.4.16
Package: opcache
Bug Type: Bug
Bug description:switch statement behavior inside function
Description:
------------
When Opcache is enabled, the evaluation of a boolean variable is
inconsistent within a switch statement with a default case that is
inside of a function scope. If a variable that is assigned a boolean
value is passed, the results do not evaluate as expected, however, if a
boolean value is directly passed, the evaluation runs as expected.
Outside of a function scope, the evaluation runs as expected, regardless
of variable assignment.
Zend Engine v3.4.0
Zend OPcache v7.4.16
opcache.optimization_level 0x7FFEBFFF
opcache.memory_consumption=128
opcache.interned_strings_buffer=8
opcache.max_accelerated_files=4000
opcache.revalidate_freq=2
opcache.fast_shutdown=1
opcache.enable_cli=1
Test script:
---------------
<?php
function testWithVar() {
$booleanVar = false;
switch ($booleanVar) {
case 'a_test_case':
echo 'inside testWithVar - "a_test_case"';
break;
default:
echo 'inside testWithVar - "default"';
break;
}
}
function testWithVal() {
switch (false) {
case 'a_test_case':
echo 'inside testWithVal - "a_test_case"';
break;
default:
echo 'inside testWithVal - "default"';
break;
}
}
$booleanVar = false;
switch ($booleanVar) {
case 'a_test_case':
echo 'outside function - "a_test_case"';
break;
default:
echo 'outside function - "default"';
break;
}
echo PHP_EOL;
testWithVar();
echo PHP_EOL;
testWithVal();
Expected result:
----------------
outside function - "default"
inside testWithVar - "default"
inside testWithVal - "default"
Actual result:
--------------
outside function - "default"
inside testWithVar - "a_test_case"
inside testWithVal - "default"
--
Edit bug report at https://bugs.php.net/bug.php?id=80900&edit=1
--
Fix committed: https://bugs.php.net/fix.php?id=80900&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=80900&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=80900&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=80900&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=80900&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=80900&r=support
Expected behavior: https://bugs.php.net/fix.php?id=80900&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=80900&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=80900&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=80900&r=globals
PHP version support discontinued: https://bugs.php.net/fix.php?id=80900&r=phptooold
Daylight Savings: https://bugs.php.net/fix.php?id=80900&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=80900&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=80900&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=80900&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=80900&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=80900&r=mysqlcfg
Thread (3 messages)
- srohde at newshour dot org