#!/usr/bin/env php
<?php
$branches_to_skip = array( 'master', 'develop' );
$the_branch       = shell_exec( 'git symbolic-ref --short HEAD' );
$the_file         = 'somefile';

if ( file_exists( $the_file ) && ! in_array( trim( $the_branch ), $branches_to_skip ) ) {
	echo "The file was found and you are on the {$the_branch} branch\r\n";
	unlink( $the_file );
	echo "{$the_file} was removed\r\n";
} else {
	echo "The {$the_file} doesn't seem to exist or your on {$the_branch} so it's all good nothing was changed\r\n";
}