Bug #77605 [NEW]: Incorrect behavior of empty() function is

From: ezepovarthur at gmail dot com Operating system: CentOS Linux release 7.6.1810 PHP version: 7.2Git-2019-02-11 (Git) Package: Performance problem Bug Type: Bug Bug description:Incorrect behavior of empty() function is Description: ------------ PHP 7.2.14 (cli) (built: Jan 8 2019 14:05:15) ( NTS ) [PHP Modules] apcu bcmath bz2 calendar Core ctype curl date dom exif fileinfo filter ftp gd geoip gettext hash iconv igbinary imagick intl json ldap libxml mbstring mcrypt memcached mongodb msgpack mysqli mysqlnd openssl pcntl pcre PDO pdo_mysql pdo_sqlite Phar posix readline redis Reflection session shmop SimpleXML soap sockets SPL sqlite3 standard sysvmsg sysvsem sysvshm tokenizer wddx xdebug xml xmlreader xmlrpc xmlwriter xsl Zend OPcache zip zlib [Zend Modules] Xdebug Zend OPcache Script: we do not have in the test script an exception, since empty() says, in this particular case, that randomProperty of Consumer instance is empty, meanwhile in_array() works correctly and goes through an array [1,2]. Test script: --------------- class BaseEntity { /** * @var array */ protected $globalStack = []; /** * @param $arg * @param $value */ public function __set($arg, $value): void { if (property_exists($this, $arg)) { $this->{$arg} = $value; } else { $this->globalStack[$arg] = $value; } } /** * @param $arg * @return mixed|null */ public function __get($arg) { if (property_exists($this, $arg) && isset($this->{$arg})) { $value = $this->{$arg}; } elseif (isset($this->globalStack[$arg])) { $value = $this->getGlobalStackValue($arg); } else { $value = null; } return $value; } public function getGlobalStackValue($arg) { return $this->globalStack[$arg]; } } class Consumer extends BaseEntity {} $consumer = new Consumer(); $consumer->randomProperty = [1,2]; if (!empty($consumer->randomProperty) && !in_array(4, $consumer->randomProperty)) { throw new \Exception('whatever'); } -- Edit bug report at https://bugs.php.net/bug.php?id=77605&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77605&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77605&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77605&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=77605&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=77605&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=77605&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=77605&r=needscript Try newer version: https://bugs.php.net/fix.php?id=77605&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=77605&r=support Expected behavior: https://bugs.php.net/fix.php?id=77605&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=77605&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=77605&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=77605&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77605&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=77605&r=dst IIS Stability: https://bugs.php.net/fix.php?id=77605&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=77605&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=77605&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=77605&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=77605&r=mysqlcfg