Req #48529 [Opn->Nab]: Better shm_-functions

From: Date: Mon, 18 Jun 2018 23:51:53 +0000
Subject: Req #48529 [Opn->Nab]: Better shm_-functions
References: 1  Groups: php.bugs 
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Edit report at https://bugs.php.net/bug.php?id=48529&edit=1 ID: 48529 Updated by: stas@php.net Reported by: ilovekernelpanic at yahoo dot de Summary: Better shm_-functions -Status: Open +Status: Not a bug Type: Feature/Change Request Package: Semaphore related Operating System: Unix PHP Version: 5.2.9 Block user comment: N Private report: N New Comment: Thank you for taking the time to report a problem with PHP. Unfortunately you are not using a current version of PHP -- the problem might already be fixed. Please download a new PHP version from http://www.php.net/downloads.php If you are able to reproduce the bug with one of the latest versions of PHP, please change the PHP version on this bug report to the version you tested and change the status back to "Open". Again, thank you for your continued support of PHP. https://secure.php.net/manual/en/function.shm-has-var.php exists since 5.3.0 Previous Comments: ------------------------------------------------------------------------ [2009-06-11 12:24:58] ilovekernelpanic at yahoo dot de 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 this bug report at https://bugs.php.net/bug.php?id=48529&edit=1

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