php-src/sapi/apache2handler
Peter Kokot 1ad08256f3 Sync leading and final newlines in source code files
This patch adds missing newlines, trims multiple redundant final
newlines into a single one, and trims redundant leading newlines.

According to POSIX, a line is a sequence of zero or more non-' <newline>'
characters plus a terminating '<newline>' character. [1] Files should
normally have at least one final newline character.

C89 [2] and later standards [3] mention a final newline:
"A source file that is not empty shall end in a new-line character,
which shall not be immediately preceded by a backslash character."

Although it is not mandatory for all files to have a final newline
fixed, a more consistent and homogeneous approach brings less of commit
differences issues and a better development experience in certain text
editors and IDEs.

[1] http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_206
[2] https://port70.net/~nsz/c/c89/c89-draft.html#2.1.1.2
[3] https://port70.net/~nsz/c/c99/n1256.html#5.1.1.2
2018-10-14 12:56:38 +02:00
..
apache_config.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
config.m4 Trim trailing whitespaces in build files 2018-07-29 03:43:45 +02:00
config.w32 Sync leading and final newlines in source code files 2018-10-14 12:56:38 +02:00
CREDITS Credits update. 2003-03-04 00:10:11 +00:00
mod_php7.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
php_apache.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
php_functions.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
php.sym Update php.sym 2014-09-18 20:43:26 +02:00
README Sync leading and final newlines in source code files 2018-10-14 12:56:38 +02:00
sapi_apache2.c Merge branch 'PHP-7.2' into PHP-7.3 2018-09-30 20:07:58 +02:00

WHAT IS THIS?

    This module exploits the layered I/O support in Apache 2.0.

HOW DOES IT WORK?

    In Apache 2.0, you have handlers which generate content (like
    reading a script from disk). The content goes then through
    a chain of filters. PHP can be such a filter, so that it processes
    your script and hands the output to the next filter (which will
    usually cause a write to the network).

DOES IT WORK?

    Currently the issues with the module are:
        * Thread safety of external PHP modules
        * The lack of re-entrancy of PHP. due to this I have disabled the 'virtual'
          function, and tried to stop any method where a php script can run another php
          script while it is being run.


HOW TO INSTALL

    This SAPI module is known to work with Apache 2.0.44.

        $ cd apache-2.x
        $ cd src
        $ ./configure --enable-so
        $ make install

    For testing purposes, you might want to use --with-mpm=prefork.
    (Albeit PHP also works with threaded MPMs. See Thread Safety note above)

    Configure PHP 4:

        $ cd php-4.x
        $ ./configure --with-apxs2=/path/to/apache-2.0/bin/apxs
        $ make install

    At the end of conf/httpd.conf, add:

        AddType application/x-httpd-php .php

    If you would like to enable source code highlighting functionality add:

        AddType application/x-httpd-php-source .phps

    That's it. Now start bin/httpd.

HOW TO CONFIGURE

    The Apache 2.0 PHP module supports a new configuration directive that
    allows an admin to override the php.ini search path. For example,
    place your php.ini file in Apache's ServerRoot/conf directory and
    add this to your httpd.conf file:

        PHPINIDir "conf"

DEBUGGING APACHE AND PHP

    To debug Apache, we recommend:

        1. Use the Prefork MPM (Apache 1.3-like process model) by
           configuring Apache with '--with-mpm=prefork'.
        2. Start httpd using -DONE_PROCESS (e.g. (gdb) r -DONE_PROCESS).

    If you want to debug a part of the PHP startup procedure, set a
    breakpoint on 'load_module'. Step through it until apr_dso_load() is
    done. Then you can set a breakpoint on any PHP-related symbol.

TODO

    PHP functions like apache_sub_req (see php_functions.c)
    Source Code Highlighting
    Protocol handlers