dl(3) [php man page]
DL(3) 1 DL(3) dl - Loads a PHP extension at runtime SYNOPSIS
bool dl (string $library) DESCRIPTION
Loads the PHP extension given by the parameter $library. Use extension_loaded(3) to test whether a given extension is already available or not. This works on both built-in extensions and dynami- cally loaded ones (either through php.ini or dl(3)). Warning This function has been removed from some SAPIs in PHP 5.3. PARAMETERS
o $library - This parameter is only the filename of the extension to load which also depends on your platform. For example, the sockets extension (if compiled as a shared module, not the default!) would be called sockets.so on Unix platforms whereas it is called php_sockets.dll on the Windows platform. The directory where the extension is loaded from depends on your platform: Windows - If not explicitly set in the php.ini, the extension is loaded from C:php4extensions (PHP 4) or C:php5 (PHP 5) by default. Unix - If not explicitly set in the php.ini, the default extension directory depends on o whether PHP has been built with --enable-debug or not o whether PHP has been built with (experimental) ZTS (Zend Thread Safety) support or not o the current internal ZEND_MODULE_API_NO (Zend internal module API number, which is basically the date on which a major module API change hap- pened, e.g. 20010901) Taking into account the above, the directory then defaults to <install-dir>/lib/php/extensions/ <debug-or-not>-<zts-or- not>-ZEND_MODULE_API_NO, e.g. /usr/local/php/lib/php/extensions/debug-non-zts-20010901 or /usr/local/php/lib/php/extensions/no- debug-zts-20010901. RETURN VALUES
Returns TRUE on success or FALSE on failure. If the functionality of loading modules is not available or has been disabled (either by set- ting enable_dl off or by enabling safe mode in php.ini) an E_ERROR is emitted and execution is stopped. If dl(3) fails because the speci- fied library couldn't be loaded, in addition to FALSE an E_WARNING message is emitted. EXAMPLES
Example #1 dl(3) examples <?php // Example loading an extension based on OS if (!extension_loaded('sqlite')) { if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') { dl('php_sqlite.dll'); } else { dl('sqlite.so'); } } // Or, the PHP_SHLIB_SUFFIX constant is available as of PHP 4.3.0 if (!extension_loaded('sqlite')) { $prefix = (PHP_SHLIB_SUFFIX === 'dll') ? 'php_' : ''; dl($prefix . 'sqlite.' . PHP_SHLIB_SUFFIX); } ?> CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.3.0 | | | | | | | dl(3) is now disabled in some SAPIs due to sta- | | | bility issues. The only SAPIs that allow dl(3) | | | are CLI and Embed. Use the Extension Loading | | | Directives instead. | | | | +--------+---------------------------------------------------+ NOTES
Note dl(3) is not supported when PHP is built with ZTS support. Use the Extension Loading Directives instead. Note dl(3) is case sensitive on Unix platforms. Note This function is disabled when PHP is running in safe mode. SEE ALSO
Extension Loading Directives, extension_loaded(3). PHP Documentation Group DL(3)
Check Out this Related Man Page
PHP-FPM(8) Scripting Language PHP-FPM(8) NAME
php-fpm - PHP FastCGI Process Manager 'PHP-FPM' SYNOPSIS
php-fpm [options] DESCRIPTION
PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML. This is a variant of PHP that will run in the background as a daemon, listening for CGI requests. Output is logged to /usr/var/log/php-fpm.log. Most options are set in the configuration file. The configuration file is /private/etc/php-fpm.conf. By default, php-fpm will respond to CGI requests listening on localhost http port 9000. Therefore php-fpm expects your webserver to forward all requests for '.php' files to port 9000 and you should edit your webserver configuration file appropriately. OPTIONS
-C Do not chdir to the script's directory --php-ini path|file -c path|file Look for php.ini file in the directory path or use the specified file --no-php-ini -n No php.ini file will be used --define foo[=bar] -d foo[=bar] Define INI entry foo with value bar -e Generate extended information for debugger/profiler --help -h This help --info -i PHP information and configuration --modules -m Show compiled in modules --version -v Version number --prefix path -p Specify alternative prefix path (the default is /usr) --fpm-config file -y Specify alternative path to FastCGI process manager configuration file (the default is /private/etc/php-fpm.conf) --test -t Test FPM configuration file and exit If called twice (-tt), the configuration is dumped before exiting. --daemonize -D Force to run in background and ignore daemonize option from configuration file. --nodaemonize -F Force to stay in foreground and ignore daemonize option from configuration file. --zend-extension file -z file Load Zend extension file FILES
php-fpm.conf The configuration file for the php-fpm daemon. php.ini The standard php configuration file. EXAMPLES
For any unix systems which use init.d for their main process manager, you should use the init script provided to start and stop the php-fpm daemon. sudo /etc/init.d/php-fpm start For any unix systems which use systemd for their main process manager, you should use the unit file provided to start and stop the php-fpm daemon. sudo systemctl start php-fpm.service If your installation has no appropriate init script, launch php-fpm with no arguments. It will launch as a daemon (background process) by default. The file /usr/var/run/php-fpm.pid determines whether php-fpm is already up and running. Once started, php-fpm then responds to several POSIX signals: SIGINT,SIGTERM immediate termination SIGQUIT graceful stop SIGUSR1 re-open log file SIGUSR2 graceful reload of all workers + reload of fpm conf/binary TIPS
The PHP-FPM CGI daemon will work well with most popular webservers, including Apache2, lighttpd and nginx. SEE ALSO
The PHP-FPM website: http://php-fpm.org For a more or less complete description of PHP look here: http://www.php.net/manual/ A nice introduction to PHP by Stig Bakken can be found here: http://www.zend.com/zend/art/intro.php BUGS
You can view the list of known bugs or report any new bug you found at: http://bugs.php.net AUTHORS
PHP-FPM SAPI was written by Andrei Nigmatulin. The mailing-lists are highload-php-en (English) and highload-php-ru (Russian). The PHP Group: Thies C. Arntzen, Stig Bakken, Andi Gutmans, Rasmus Lerdorf, Sam Ruby, Sascha Schumann, Zeev Suraski, Jim Winstead, Andrei Zmievski. A List of active developers can be found here: http://www.php.net/credits.php And last but not least PHP was developed with the help of a huge amount of contributors all around the world. VERSION INFORMATION
This manpage describes php-fpm, version 5.4.17. COPYRIGHT
Copyright (C) 1997-2009 The PHP Group Copyright (c) 2007-2009, Andrei Nigmatulin This source file is subject to version 3.01 of the PHP license, that is bundled with this package in the file LICENSE, and is available through the world-wide-web at the following url: http://www.php.net/license/3_01.txt If you did not receive a copy of the PHP license and are unable to obtain it through the world-wide-web, please send a note to license@php.net so we can mail you a copy immediately. The PHP Group 2009 PHP-FPM(8)