From:             ilovekernelpanic at yahoo dot de
Operating system: Unix
PHP version:      5.2.9
PHP Bug Type:     Feature/Change Request
Bug description:  Better shm_-functions

Description:
------------
shm provides more speed than files or databases. But there is no
proper way to check if a field exists. You can do
@shm_get_var($connection, $field) !== false to check it. But:
-With custom error handlers you will get a warning, when there is no
such $field
-It needs a lot of time to process the warning, but it should be fast

There should be a function shm_has_var or shm_var_exists.

A function shm_export_vars could convert the shared memory to an
associative array.
A function shm_export_keys: Like
array_keys(shm_export_vars($connection)) but faster
Those functions are very essential. When you don't have them you have
to use the shared-memory as a linked list.
A function shm_get_size: Return the size of the shared memory
segment. Not necessary, because you can store it using
shm_put_var($connection, 0, $size), but such a function would be more
secure
Maybe also shm_resize could be possible.

With this function there could be better object oriented array like
wrappers form shared memory.


-- 
Edit bug report at http://bugs.php.net/?id=48529&edit=1
-- 
Try a CVS snapshot (PHP 5.2):        
http://bugs.php.net/fix.php?id=48529&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):        
http://bugs.php.net/fix.php?id=48529&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):        
http://bugs.php.net/fix.php?id=48529&r=trysnapshot60
Fixed in CVS:                        
http://bugs.php.net/fix.php?id=48529&r=fixedcvs
Fixed in CVS and need be documented: 
http://bugs.php.net/fix.php?id=48529&r=needdocs
Fixed in release:                    
http://bugs.php.net/fix.php?id=48529&r=alreadyfixed
Need backtrace:                      
http://bugs.php.net/fix.php?id=48529&r=needtrace
Need Reproduce Script:               
http://bugs.php.net/fix.php?id=48529&r=needscript
Try newer version:                   
http://bugs.php.net/fix.php?id=48529&r=oldversion
Not developer issue:                 
http://bugs.php.net/fix.php?id=48529&r=support
Expected behavior:                   
http://bugs.php.net/fix.php?id=48529&r=notwrong
Not enough info:                     
http://bugs.php.net/fix.php?id=48529&r=notenoughinfo
Submitted twice:                     
http://bugs.php.net/fix.php?id=48529&r=submittedtwice
register_globals:                    
http://bugs.php.net/fix.php?id=48529&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=48529&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=48529&r=dst
IIS Stability:                       
http://bugs.php.net/fix.php?id=48529&r=isapi
Install GNU Sed:                     
http://bugs.php.net/fix.php?id=48529&r=gnused
Floating point limitations:          
http://bugs.php.net/fix.php?id=48529&r=float
No Zend Extensions:                  
http://bugs.php.net/fix.php?id=48529&r=nozend
MySQL Configuration Error:           
http://bugs.php.net/fix.php?id=48529&r=mysqlcfg

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