The problem is caused by the /Applications/MAMP/bin directory. On more recent versions of MAMP you have the choice of PHP5.2 and 5.3 (in the /Applications/MAMP/bin/php5.2 and php5.3 folders). However, PEAR wants to install modules to a /Applications/MAMP/bin/php folder and everything gets a bit confused. The first step is to ensure you don’t already have a /Application/MAMP/bin/php folder. If you do, or if you don’t have the /Applications/MAMP/bin/php5.2 or php5.3 folders, upgrade MAMP. This is easily done by downloading the latest version from and installing. If you have MAMP Pro uninstall this first (drag to trash) before installing. This should retain your previous host file and config settings. Next step is to link up terminal so the correct version of PHP is being used. Pop open Terminal and write: cd /Applications/MAMP/bin This is easily achieved by adding a symlink. Next add this location, and the MySQL binary location, to your path like so: sudo nano ~/.bash_profileĪnd enter the following content (all on one line): export PATH=/Applications/MAMP/bin/php5/bin:/Applications/MAMP/Library/bin:$PATH You can swap php5.3 for php5.2 if you so wish though I’d recommend developing with PHP5.3 if you can host it. You need to close and re-open your terminal window for these settings to take effect. Test this by typing: which php Upgrading PEAR Now, you can type php and mysql safe in the knowledge you are using the right binary.

Now if you really want to get going you can install PHPUnit with the following commands: sudo pear channel-discover # Find out what version of PEAR you are running As of today (24/June/2011) the version of PEAR is 1.9.3. Sudo pear install phpunit/PHPUnit Switching versions of PHP on the command line Sudo pear channel-discover components.ez.no If you ever want to swap what PHP version is being used on the command line you can remove and re-create the symlink to /Applications/MAMP/bin/php # Use PHP5.2 on the CLI MAMP UPDATE PHP INSTALL

When re-creating the symlink there’s no need to close and re-open terminal since your path environment variable hasn’t changed, just the symlink.

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