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If With the PHP CLI installed, you can use <code>php -m</code> to get a list of the compiled-in modules for your PHP installation. This is the same as you would find by using the <code>phpinfo();</code> function in a script, except that you get exactly the info you need, in a list format that you can use. That list can show you what you might need to install on another host to ensure that each host is compatible for the software you're running. However, it won't show you the name of the actual packages that you need to install. So, if you want to know what PHP packages are installed, you can do the following
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== Replicating a PHP installation ==
<source lang="bash">
# On system A, get a list of the php packages that are installed
## apt-based package manager: Debian, Ubuntu
dpkg --get-selections |grep -v deinstall | grep php5- | awk 'ORS=" " { print $1 }'
## yum-based package manager: RedHat, CentOS, Fedora
yum list installed | grep php5 | awk 'ORS=" " { print $1 }'
# On system B, install those packages
sudo apt-get install [LIST FROM A]
</source>
If system A and system B use different package managers, then the best you can do is get the list of the modules from each system and compare them. In our <code>diff</code>, we'll use the system we're moving from on the left, because <code>diff</code> is quirky and will show lines that 'differ' with a pipe symbol; thus it's less error-prone to print the first column with awk.
<source lang="bash">
A=webfaction.php.modules.txt
B=digital.ocean.php.modules.txt
diff --suppress-common-lines --side-by-side $A $B
</source>
It's not perfect, but now we have a good list of the modules to search and install.
<pre>
>
curl
>
gd
gmp
imap
intl
ionCube
ldap
mailparse
mcrypt
memcache
mysqlnd
>
pdo_pgsql
pdo_sqlite
pgsql
pspell
>
sqlite3
tidy
>
>
>
xmlrpc
xsl
the
>
</pre>
<source lang="bash">
apt-cache search php5-
</source>
<pre>
php5-cgi - server-side, HTML-embedded scripting language (CGI binary)
php5-cli - command-line interpreter for the php5 scripting language
php5-common - Common files for packages built from the php5 source
php5-curl - CURL module for php5
php5-dbg - Debug symbols for PHP5
php5-dev - Files for PHP5 module development
php5-gd - GD module for php5
php5-gmp - GMP module for php5
php5-json - JSON module for php5
php5-ldap - LDAP module for php5
php5-mysql - MySQL module for php5
php5-odbc - ODBC module for php5
php5-pgsql - PostgreSQL module for php5
php5-pspell - pspell module for php5
php5-readline - Readline module for php5
php5-recode - recode module for php5
php5-snmp - SNMP module for php5
php5-sqlite - SQLite module for php5
php5-tidy - tidy module for php5
php5-xmlrpc - XML-RPC module for php5
php5-xsl - XSL module for php5
libphp5-embed - HTML-embedded scripting language (Embedded SAPI library)
php5-adodb - Extension optimising the ADOdb database abstraction library
php5-apcu - APC User Cache for PHP 5
php5-enchant - Enchant module for php5
php5-exactimage - fast image manipulation library (PHP bindings)
php5-fpm - server-side, HTML-embedded scripting language (FPM-CGI binary)
php5-gdcm - Grassroots DICOM PHP5 bindings
php5-gearman - PHP wrapper to libgearman
php5-geoip - GeoIP module for php5
php5-gnupg - wrapper around the gpgme library
php5-imagick - ImageMagick module for php5
php5-imap - IMAP module for php5
php5-interbase - interbase/firebird module for php5
php5-intl - internationalisation module for php5
php5-lasso - Library for Liberty Alliance and SAML protocols - PHP 5 bindings
php5-librdf - PHP5 language bindings for the Redland RDF library
php5-mapscript - php5-cgi module for MapServer
php5-mcrypt - MCrypt module for php5
php5-memcache - memcache extension module for PHP5
php5-memcached - memcached extension module for PHP5, uses libmemcached
php5-midgard2 - Midgard2 Content Repository - PHP5 language bindings and module
php5-ming - Ming module for php5
php5-mongo - MongoDB database driver
php5-msgpack - PHP extension for interfacing with MessagePack
php5-mysqlnd - MySQL module for php5 (Native Driver)
php5-mysqlnd-ms - MySQL replication and load balancing module for PHP
php5-oauth - OAuth 1.0 consumer and provider extension
php5-pinba - Pinba module for PHP 5
php5-ps - ps module for PHP 5
php5-radius - PECL radius module for PHP 5
php5-redis - PHP extension for interfacing with Redis
php5-remctl - PECL module for Kerberos-authenticated command execution
php5-rrd - PHP bindings to rrd tool system
php5-sasl - Cyrus SASL Extension
php5-stomp - Streaming Text Oriented Messaging Protocol (STOMP) client module for PHP 5
php5-svn - PHP Bindings for the Subversion Revision control system
php5-sybase - Sybase / MS SQL Server module for php5
php5-tokyo-tyrant - PHP interface to Tokyo Cabinet's network interface, Tokyo Tyrant
php5-vtkgdcm - Grassroots DICOM VTK PHP bindings
php5-xcache - Fast, stable PHP opcode cacher
php5-xdebug - Xdebug Module for PHP 5
php5-xhprof - Hierarchical Profiler for PHP5
</pre>
[[Category:Howto]]
