Req #51280 [NEW]: Calculate expression before using it as argument

From: Operating system: PHP version: 5.3.2 Package: *General Issues Bug Type: Feature/Change Request Bug description:Calculate expression before using it as argument Description: ------------ Calculate expression before using it as argument in function and with echo. Test script: --------------- class p{ protected $_name = null; protected $_value = null; public function __construct($name, $value){ $this->_name = $name; $this->_value = $value; } public function is($value){ $this->_value = $value; return $this; } public function __toString(){ return "$this->_name = $this->_value"; } } class a{ protected $_a = null; public function __set($name, $value){ $this->_a[$name] = new p($name, $value); return $this->_a[$name]; } public function __get($name){ if (!isset($this->_a[$name])){ $this->_a[$name] = new p($name, null); } return $this->_a[$name]; } } class q{ public function where($var){ echo $var; } } $a = new a(); echo $a->x = 2; // "2" (Expected: "x = 2") echo "\r\n"; echo $a->x; // "x = 2" echo "\r\n"; $q = new q(); $q->where($a->x = 2); // "2" (Expected: "x = 2") echo "\r\n"; $q->where(($a->x = 2)); // "2" (Expected: "x = 2") Expected result: ---------------- x = 2 x = 2 x = 2 x = 2 Actual result: -------------- 2 x = 2 2 2 -- Edit bug report at http://bugs.php.net/bug.php?id=51280&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=51280&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=51280&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=51280&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=51280&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=51280&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=51280&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=51280&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=51280&r=needscript Try newer version: http://bugs.php.net/fix.php?id=51280&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=51280&r=support Expected behavior: http://bugs.php.net/fix.php?id=51280&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=51280&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=51280&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=51280&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=51280&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=51280&r=dst IIS Stability: http://bugs.php.net/fix.php?id=51280&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=51280&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=51280&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=51280&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=51280&r=mysqlcfg