Symfony2 WebApp部署

I'm trying to deploy a symfony2 webapp on a VPS server. That server has a different PHP version installed on web (5.4) and command line client (5.2). In order to install vendors with composer, I cannot use PHP-CLI because of its version (it needs PHAR support, included on PHP 5.3). Is there any way I can use php motor that uses Apache (5.4) on CLI?

I realize that PHP5.4 is installed on /opt/php54 but no bin folder is inside.

Thanks guys!

EDIT

By the way, which php command returns /usr/bin/php which is the PHP52 binary.

You just need to find the PHP54 binary and execute the composer installation.

The binary path depends on the linux distribution.

These commands might help to find it:

which php
whereis php

Please take a look at the /usr folder and /usr/local/bin/php.

Or: just place a little script in the web folder with <?php echo PHP_BINDIR; echo PHP_BINARY; - it will show the path to php.