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To: "ML PHP Internals" <internals@lists.php.net>
Date: Wed, 1 Oct 2003 11:26:26 +0200
Message-ID: <MPEPKDMCBNPAEKBLKKJNOENHCGAA.lists@darknoise.de>
Importance: Normal
Subject: retrieving information about state of a function
From: lists@darknoise.de ("Dennis Sterzenbach")

Hi,

I recognized there isn't any built-in function which
tells the disabled/enabled state of some function.
I think of something like:

if (function_enabled("shell_exec")) {
   $info = shell_exec("dig myname.com");
}

telling if shell_exec is disabled by php.ini setting
or not.

I already implemented a check which uses an ini_get() to
retrieve the list of disabled functions, but I think it
would be more smooth having a function provided by PHP
for that purpose, because there are functions for all the
other kinds of checks: included files, declared classes,
defined constants/variables, defined functions, etc.

Why not having a function which gives information about
disabled/enabled state of a function?

I think if the function was provided by PHP makes it
faster. -Think of having to explode() and in_array() check
for the function. The PHP engine could simply have the
list of disabled functions to hand a true/false directly
from C code. Which seems to be the more consequent and
ideal solution.


--
 Dennis Sterzenbach
 www.darknoise.de