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77 lines
2.3 KiB
Plaintext
77 lines
2.3 KiB
Plaintext
WHAT IS THIS?
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This module exploits the layered I/O support in Apache 2.0.
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HOW DOES IT WORK?
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In Apache 2.0, you have handlers which generate content (like
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reading a script from disk). The content goes then through
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a chain of filters. PHP can be such a filter, so that it processes
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your script and hands the output to the next filter (which will
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usually cause a write to the network).
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DOES IT WORK?
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Currently the issues with the module are:
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* Thread safety of external PHP modules
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* The lack of re-entrancy of PHP. due to this I have disabled the 'virtual'
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function, and tried to stop any method where a php script can run another php
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script while it is being run.
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HOW TO INSTALL
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This SAPI module is known to work with Apache 2.0.44.
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$ cd apache-2.x
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$ cd src
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$ ./configure --enable-so
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$ make install
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For testing purposes, you might want to use --with-mpm=prefork.
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(Albeit PHP also works with threaded MPMs. See Thread Safety note above)
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Configure PHP 4:
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$ cd php-4.x
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$ ./configure --with-apxs2=/path/to/apache-2.0/bin/apxs
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$ make install
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At the end of conf/httpd.conf, add:
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AddType application/x-httpd-php .php
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If you would like to enable source code highlighting functionality add:
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AddType application/x-httpd-php-source .phps
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That's it. Now start bin/httpd.
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HOW TO CONFIGURE
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The Apache 2.0 PHP module supports a new configuration directive that
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allows an admin to override the php.ini search path. For example,
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place your php.ini file in Apache's ServerRoot/conf directory and
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add this to your httpd.conf file:
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PHPINIDir "conf"
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DEBUGGING APACHE AND PHP
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To debug Apache, we recommened:
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1. Use the Prefork MPM (Apache 1.3-like process model) by
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configuring Apache with '--with-mpm=prefork'.
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2. Start httpd using -DONE_PROCESS (e.g. (gdb) r -DONE_PROCESS).
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If you want to debug a part of the PHP startup procedure, set a
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breakpoint on 'load_module'. Step through it until apr_dso_load() is
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done. Then you can set a breakpoint on any PHP-related symbol.
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TODO
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PHP functions like apache_sub_req (see php_functions.c)
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Source Code Highlighting
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Protocol handlers
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