without macports, it should be something like this: curl -sS https://getcomposer.org/installer | php sudo mv composer.phar /usr/local/bin/composer
but i am afraid that this way interfers with macports. ----- then i found the following: https://github.com/sjorek/MacPorts-PHP it looks it works like a local port installation. as this isnt a formal port i think i cannot create a ticket. this is what happens: # port install composer composer-php56 composer-select +iconv +openssl ---> Cleaning composer ---> Computing dependencies for composer-php56 ---> Building composer-php56 Error: Failed to build composer-php56: Warning: PHP Startup: Unable to load dynamic library '/opt/local/lib/php56/extensions/no-debug-non-zts-20131226/gd.so' - dlopen(/opt/local/lib/php56/extensions/no-debug-non-zts-20131226/gd.so, 9): image not found in Unknown on line 0 Warning: PHP Startup: Unable to load dynamic library '/opt/local/lib/php56/extensions/no-debug-non-zts-20131226/gdchart.so' - dlopen(/opt/local/lib/php56/extensions/no-debug-non-zts-20131226/gdchart.so, 9): image not found in Unknown on line 0 All settings correct for using Composer PHP Warning: PHP Startup: Unable to load dynamic library '/opt/local/lib/php56/extensions/no-debug-non-zts-20131226/gd.so' - dlopen(/opt/local/lib/php56/extensions/no-debug-non-zts-20131226/gd.so, 9): image not found in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library '/opt/local/lib/php56/extensions/no-debug-non-zts-20131226/gdchart.so' - dlopen(/opt/local/lib/php56/extensions/no-debug-non-zts-20131226/gdchart.so, 9): image not found in Unknown on line 0 Error: See /opt/local/var/macports/logs/_Users_paul_Develop_macports_MacPorts-PHP_php_composer/composer-php56/main.log for details. Error: Follow https://guide.macports.org/#project.tickets to report a bug. Error: Processing of port composer-php56 failed so it probably isnt the right way too. ----- could anybody please tell me the right way to install/use php composer with macports ? thanks, pdf.