PHPUnit on pre-commit Git Hook seems to use different PHP version - php

Question

I'm trying to set up a pre-commit git hook that will run and validate our unit tests. We are using PHPUnit in the Symfony 2 platform.
For some reason it seems that when I run the unit tests via the git hook that it is using a different version of PHP.
When I check my php version I get:
php -v
PHP 5.4.14 (cli) (built: May 8 2013 10:23:18)
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2013 Zend Technologies
with Xdebug v2.2.1, Copyright (c) 2002-2012, by Derick Rethans
Here is my git hook:
#!/usr/bin/php
<?php
// Hook configuration
$project = 'My Project';
// Tell the commiter what the hook is doing
echo PHP_EOL;
echo '>> Starting unit tests'.PHP_EOL;
// Execute project unit tests
exec('bin/phpunit -c app/', $output, $returnCode);
// if the build failed, output a summary and fail
if ($returnCode !== 0)
{
// find the line with the summary; this might not be the last
while (($minimalTestSummary = array_pop($output)) !== null)
{
if (strpos($minimalTestSummary, 'Tests:') !== false)
{
break;
}
}
// output the status and abort the commit
echo '>> Test suite for '.$project.' failed:'.PHP_EOL;
echo $minimalTestSummary;
echo chr(27).'[0m'.PHP_EOL; // disable colors and add a line break
echo PHP_EOL;
exit(1);
}
echo '>> All tests for '.$project.' passed.'.PHP_EOL;
echo PHP_EOL;
exit(0);
When I run the unit tests manually ("bin/phpunit -c app/" from my project directory) the tests execute with out error. When I run the tests via the git hook I get a PHP Parse Error. I've determined that the parse error stems from the use of array bracket notation (['key'=>'value']) that was added in PHP 5.4
When I echo php -v in the git hook I get the following output
Zend Engine v2.3.0, Copyright (c) 1998-2013 Zend Technologies
Since the Zend Engine is different (2.4.0 when run manually and 2.3.0 when run via the git hook) I'm assuming that there is a PHP version mismatch happening.
Does anyone have any clues as to why this is happening?
Thanks!

Answer 1

the git/phpunit executable most likely sees a different PATH environment variable than your shell (bash/zsh/...) executable.
If a program looks for i.e. php - the first match from your PATH variable will be used.
Probably you're adding a folder containing a different PHP executable to the PATH variable in one of your shell startup files.
Possible files include:
/etc/profile
/etc/zshenv
/etc/bashrc
~/.profile
~/.bashrc
~/.zshrc
...