Re: how to configure PHP so extension_dir is null?

From	crankypuss <invalid@invalid.invalid>
Newsgroups	comp.lang.php
Subject	Re: how to configure PHP so extension_dir is null?
Date	2016-01-13 05:22 -0700
Organization	A noiseless patient Spider
Message-ID	<n75fd6$ash$1@dont-email.me> (permalink)
References	<n731fp$63t$1@dont-email.me> <n73qs0$f8t$1@jstuckle.eternal-september.org>

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Jerry Stuckle wrote:

> On 1/12/2016 9:12 AM, crankypuss wrote:
>> I'm building PHP from source and want no ini-files, no extensions of
>> any kind, except those statically linked in with the resulting PHP
>> executable.
>> 
>> The configure line I'm using is:
>> 
>> ./configure --disable-all --with-config-file-path=/dev/null
>> --disable- option-checking --with-libdir=/dev/null --disable-rpath
>> 
>> I'm still seeing this in the results of phpinfo():
>> 
>> extension_dir =>
>> /usr/local/lib/php/extensions/no-debug-non-zts-20131226 =>
>> /usr/local/lib/php/extensions/no-debug-non-zts-20131226
>> 
>> This is intended to be a "standalone" build, I don't want any
>> extensions
>> whatsoever except the ones I link in.  When I look up "extension_dir"
>> via google I find that the doc tells me what PHP commands I can issue
>> to set it, but what configure option do I need to set to disable it?
>> 
> 
> I don't think you can change it in the build configuration - at least
> I
> didn't find any means to do so.  Even if you did, it could still be
> overridden in a php.ini file.
> 
> Is there a problem with just having it point at an empty (or
> non-existent) directory?

I've been using /dev/null and it seems to have the desired effect.  The 
config command I'm currently working with is:

./configure \
	--with-config-file-path=/dev/null \
	--with-libdir=/dev/null \
	--disable-rpath \
	--disable-option-checking \
	--disable-libxml \
	--disable-dom \
	--disable-simplexml \
	--disable-xml \
	--disable-xmlreader \
	--disable-ctype \
	--disable-inifile \
	--disable-flatfile \
	--disable-filter \
	--disable-json \
	--disable-mbregex \
	--disable-mbregex-backtrack \
	--disable-pdo \
	--disable-phar \
	--disable-session \
	--disable-tokenizer \
	--disable-xmlwriter \
	--disable-mysqlnd-compression-support \
	--disable-inline-optimization \
	--disable-libtool-lock \
	--without-pear \
	--enable-ncursesw \
	--with-ncurses \

If I haven't muffed the testing, it seems to include ncurses 
functionality, but I suspect it's still using the ncurses shared 
library.  Ideally I'd rather have everything linked in statically, but 
given that I'm aware of no linux distro that doesn't include the ncurses 
library by default, maybe that's no big deal.  I'll probably get around 
to testing it on a "virgin install" later today.

The initial objective here is to run backup/restore utilities written in 
PHP on a system that does not have PHP installed.  Assuming that what I 
have works, the next step is to look for main() and start digging 
around; what I have in mind is concatenating the required PHP source 
onto the end of the (fairly large, at 18mb) PHP executable and executing 
that source instead of some other file, so that the whole thing is one 
lump, PHP engine plus application source.

-- 
http://totally-portable-software.blogspot.com
  [Sun Nov 22: "Total Portability is not binary"]

Thread

how to configure PHP so extension_dir is null? crankypuss <invalid@invalid.invalid> - 2016-01-12 07:12 -0700
  Re: how to configure PHP so extension_dir is null? Jerry Stuckle <jstucklex@attglobal.net> - 2016-01-12 16:25 -0500
    Re: how to configure PHP so extension_dir is null? Allodoxaphobia <knock_yourself_out@example.net> - 2016-01-13 02:09 +0000
      Re: how to configure PHP so extension_dir is null? Jerry Stuckle <jstucklex@attglobal.net> - 2016-01-12 21:11 -0500
    Re: how to configure PHP so extension_dir is null? crankypuss <invalid@invalid.invalid> - 2016-01-13 05:22 -0700
      Re: how to configure PHP so extension_dir is null? Jerry Stuckle <jstucklex@attglobal.net> - 2016-01-13 08:25 -0500
        Re: how to configure PHP so extension_dir is null? crankypuss <invalid@invalid.invalid> - 2016-01-13 07:00 -0700
          Re: how to configure PHP so extension_dir is null? Jerry Stuckle <jstucklex@attglobal.net> - 2016-01-13 10:10 -0500

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