php composer.phar install gives errors on Centos 6

[hostile123]

[root@vodeoo a2billing]# php composer.phar update Loading composer repositories with package information Updating dependencies (including require-dev) Your requirements could not be resolved to an installable set of packages.

Problem 1

• The requested package adodb/adodb-php could not be found in any version, there may be a typo in the package name.

Potential causes:

• A typo in the package name
• The package is not available in a stable-enough version according to your minimum-stability setting see https://groups.google.com/d/topic/composer-dev/_g3ASeIFlrc/discussion for more details.

Read https://getcomposer.org/doc/articles/troubleshooting.md for further common problems. [root@vodeoo a2billing]# php composer.phar install Loading composer repositories with package information Installing dependencies (including require-dev) from lock file Your requirements could not be resolved to an installable set of packages.

Problem 1

• Installation request for symfony/yaml v2.7.2 -> satisfiable by symfony/yaml[v2.7.2].
• symfony/yaml v2.7.2 requires php >=5.3.9 -> your PHP version (5.3.3) or "config.platform.php" value does not satisfy that requirement. Problem 2
• symfony/yaml v2.7.2 requires php >=5.3.9 -> your PHP version (5.3.3) or "config.platform.php" value does not satisfy that requirement.
• phpunit/phpunit 4.7.7 requires symfony/yaml ~2.1|~3.0 -> satisfiable by symfony/yaml[v2.7.2].
• Installation request for phpunit/phpunit 4.7.7 -> satisfiable by phpunit/phpunit[4.7.7].

[hostile123]

Ubuntu 14.04 the same

root@vodeoo:/usr/src/a2billing# php composer.phar update Loading composer repositories with package information Updating dependencies (including require-dev) Your requirements could not be resolved to an installable set of packages.

Problem 1

• The requested package adodb/adodb-php could not be found in any version, there may be a typo in the package name.

Potential causes:

• A typo in the package name
• The package is not available in a stable-enough version according to your minimum-stability setting see https://groups.google.com/d/topic/composer-dev/_g3ASeIFlrc/discussion for more details.

Read https://getcomposer.org/doc/articles/troubleshooting.md for further common problems.

[miken32]

This is pretty obvious:

symfony/yaml v2.7.2 requires php >=5.3.9 -> your PHP version (5.3.3) or "config.platform.php" value does not satisfy that requirement.

5.3.3 was release in July 2010!

[chris001]

The solution is to upgrade your php. How to upgrade php on centos 6:

$ yum --enablerepo=extras install  centos-release-scl
$ yum install   httpd24  rh-php56   rh-php56-php

More: https://www.centos.org/forums/viewtopic.php?t=57019