Bug #17668: $array[] = 1 is not the same as $array[$somenullval]] = 1

From: pgl@instinct.org Operating system: Win2K, FreeBSD PHP version: 4.1.2 PHP Bug Type: Arrays related Bug description: $array[] = 1 is not the same as $array[$somenullval]] = 1 $array[] = 1 is not the same as $array[$somenullvalue] = 1. This is not intuitive and undocumented as far as I can tell. Example: --8<-- [armadillo:pgl]:~/public_html/test $ cat test.php <? #!/usr/local/bin/php -q $array[] = 1; $array[] = 2; print_r($array); unset($array); $null = ''; $array[$null] = 3; $array[$null] = 4; print_r($array); ?> --8<-- Prints: --8<-- Array ( [0] => 1 [1] => 2 ) Array ( [] => 4 ) --8<-- I would say this is a documentation problem, but I can't see how this behaviour could be useful. regards, Peter Lowe. -- Edit bug report at http://bugs.php.net/?id=17668&edit=1 -- Fixed in CVS: http://bugs.php.net/fix.php?id=17668&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=17668&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=17668&r=needtrace Try newer version: http://bugs.php.net/fix.php?id=17668&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=17668&r=support Expected behavior: http://bugs.php.net/fix.php?id=17668&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=17668&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=17668&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=17668&r=globals