I can't install composer on mac os x

Question

Following the instructions from this page (link below), I still can't install the composer and I am not sure where I am failing here. Any good eye to spot my error? I am very close I can feel it but no luck yet and it's probably a simple mistake I am doing here... Please help!

https://getcomposer.org/download/

Step 1:

curl -sS https://getcomposer.org/installer | php

Console response:

#!/usr/bin/env php
Some settings on your machine make Composer unable to work properly.
Make sure that you fix the issues listed below and run this script again:

The openssl extension is missing, which means that secure HTTPS transfers are impossible.
If possible you should enable it or recompile php with --with-openssl

Step 2:

<?php phpinfo(); ?>

Response:

Apache Version
Apache/2.2.24 (Unix) mod_ssl/2.2.24 OpenSSL/1.0.1e DAV/2 PHP/5.4.15

Additional .ini files parsed
/opt/local/var/db/php54/openssl.ini,

OpenSSL support enabled
OpenSSL Library Version OpenSSL 1.0.1e 11 Feb 2013
OpenSSL Header Version  OpenSSL 1.0.1e 11 Feb 2013

Step 3:

cd /opt/local/var/db
ls -al

Response:

drwxr-xr-x  25 root    admin    850  6 Jan 23:52 php5
drwxr-xr-x   4 root    admin    136 29 Dec 20:39 php53
drwxr-xr-x  27 root    admin    918 28 Jan 12:34 php54

Step 4:

cd php54
ls -al

Response:

......
-rw-r--r--   1 root  admin  237 10 May  2013 openssl.ini
......

Step 5:

vim openssl.ini

Response:

; Do not edit this file; it is automatically generated by MacPorts. Any changes
; you make will be lost if you upgrade, uninstall or deactivate php54-openssl.
; To configure php54, edit /opt/local/etc/php54/php.ini.
extension=openssl.so

Step 5: (just to double check)

sudo port install php54-openssl

Response:

--->  Computing dependencies for php54-openssl
--->  Cleaning php54-openssl
--->  Scanning binaries for linking errors: 100.0%
--->  No broken files found.

Step 6:

sudo /opt/local/apache2/bin/apachectl -k restart

Step 7:

curl -sS https://getcomposer.org/installer | php

Response:

As in step 1

Step 8:

curl -sS https://getcomposer.org/installer | php54

Response:

#!/usr/bin/env php
All settings correct for using Composer
Downloading...
Could not create file /opt/local/var/db/php54/composer.phar: fopen(/opt/local/var/db/php54/composer.phar): failed to open stream: Permission denied
Download failed: fopen(/opt/local/var/db/php54/composer.phar): failed to open stream: Permission denied
fwrite() expects parameter 1 to be resource, boolean given
Downloading...
Could not create file /opt/local/var/db/php54/composer.phar: fopen(/opt/local/var/db/php54/composer.phar): failed to open stream: Permission denied
Download failed: fopen(/opt/local/var/db/php54/composer.phar): failed to open stream: Permission denied
fwrite() expects parameter 1 to be resource, boolean given
Downloading...
Could not create file /opt/local/var/db/php54/composer.phar: fopen(/opt/local/var/db/php54/composer.phar): failed to open stream: Permission denied
Download failed: fopen(/opt/local/var/db/php54/composer.phar): failed to open stream: Permission denied
fwrite() expects parameter 1 to be resource, boolean given
The download failed repeatedly, aborting.

Step 9:

sudo curl -sS https://getcomposer.org/installer | php54

Response:

As in step 8

Answer 1

mkdir -p /usr/local/bin

curl -sS https://getcomposer.org/installer | sudo php -- --install-dir=/usr/local/bin --filename=composer --version=1.0.0-alpha11

Answer 2

Step 9:

curl -sS https://getcomposer.org/installer | sudo php54