#28237 [NEW]: Can't access built in array whose name is stored in an object attribute

From: marcel at vernix dot org Operating system: Debian GNU/Linux 2.4.20 PHP version: 4.3.4 PHP Bug Type: Class/Object related Bug description: Can't access built in array whose name is stored in an object attribute Description: ------------ When the name of a built in array is stored inside of an object attribute, its contents can't be access from the 'variable variable' without the use of eval. So, print_r(${$this->array}) and print_r($$this->array) don't work, but eval("print_r(\${$this->array});") does. When trying the same thing on a "regular" variable variable, it works as expected. Reproduce code: --------------- <?php $built_in_array = '_SERVER'; class klass { function klass($array = '_SERVER') { $this->array = $array; } function printit() { print_r(${$this->array}); #eval ("print_r(\${$this->array});"); } } print_r(${$built_in_array}); $k = new klass(); $k->printit(); ?> Expected result: ---------------- Array ( [HZ] => 100 [TERM] => rxvt [SHELL] => /bin/bash [WINDOWID] => 31457282 ...etc... Array ( [HZ] => 100 [TERM] => rxvt [SHELL] => /bin/bash [WINDOWID] => 31457282 ...etc... Actual result: -------------- Array ( [HZ] => 100 [TERM] => rxvt [SHELL] => /bin/bash [WINDOWID] => 31457282 ...etc... -- Edit bug report at http://bugs.php.net/?id=28237&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=28237&r=trysnapshot4 Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=28237&r=trysnapshot5 Fixed in CVS: http://bugs.php.net/fix.php?id=28237&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=28237&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=28237&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=28237&r=needscript Try newer version: http://bugs.php.net/fix.php?id=28237&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=28237&r=support Expected behavior: http://bugs.php.net/fix.php?id=28237&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=28237&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=28237&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=28237&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=28237&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=28237&r=dst IIS Stability: http://bugs.php.net/fix.php?id=28237&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=28237&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=28237&r=float