ID: 45360 User updated by: richc at drivecurrent dot com Reported By: richc at drivecurrent dot com Status: Bogus Bug Type: Variables related Operating System: Linux Redhat PHP Version: 5.2.6 New Comment:
** Could someone please take a look at this bug instead of closing as bogus. This is NOT simply a memcache bug unless PHP allows memcache to corrupt variables outside its context--which still makes it a PHP bug. This is a PHP bug revealed by the memcache bug. Please take another look. Previous Comments: ------------------------------------------------------------------------ [2008-07-02 11:50:02] [EMAIL PROTECTED] Memcache bugs are not PHP bugs -> bogus. ------------------------------------------------------------------------ [2008-06-25 20:32:03] richc at drivecurrent dot com The last "Expected Result" should read 4 double / double / double ------------------------------------------------------------------------ [2008-06-25 20:24:42] richc at drivecurrent dot com Description: ------------ I believe a problem with memcache reveals a problem with PHP. (PECL Memcache bug: http://pecl.php.net/bugs/bug.php?id=14239) A call to memcache changes the parameter variable to 'string' type. The PHP problem is that this conversion is passed to ancestor and decendent copies of the variable, even through function calls, even though passed by value, not reference. This appears to be similar to PHP Bug #42813, closed as Bogus. This is a newly compiled PHP installation using latest PHP, PECL, memcached. Reproduce code: --------------- $value1 = 1.2; $value2 = $value1; // this value is being passed -- all get modified $value3 = $value2; echo '<br>1 ' . gettype($value1) . ' / ' . gettype($value2) . ' / ' . gettype($value3); set('asdf', $value2); echo '<br>4 ' . gettype($value1) . ' / ' . gettype($value2) . ' / ' . gettype($value3); function set( $key, $valueA ) { $valueB = $valueA; // this value is being passed -- all get modified $valueC = $valueB; echo '<br>2 ' . gettype($valueA) . ' / ' . gettype($valueB) . ' / ' . gettype($valueC); $m = new Memcache(); $m->addServer('localhost'); $m->set($key, $valueB); echo '<br>3 ' . gettype($valueA) . ' / ' . gettype($valueB) . ' / ' . gettype($valueC); } Expected result: ---------------- Even when memcache bug corrupts $valueB, others should not be affected: 1 double / double / double 2 double / double / double 3 double / string / double 4 double / string / double Actual result: -------------- 1 double / double / double 2 double / double / double 3 string / string / string 4 string / string / string ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=45360&edit=1
