deploy.php

<?php

// Set these dependant on your BB credentials

$username = 'username';
$password = 'password';

// Grab the data from BB's POST service and decode
$json = stripslashes($_POST['payload']);
$data = json_decode($json);

// Set some parameters to fetch the correct files

$uri = $data->repository->absolute_url;
$node = $data->commits[0]->node;
$files = $data->commits[0]->files;

// Foreach through the files and curl them over

foreach ($files as $file) {
	
	if ($file->type == "removed") {
		
		unlink($file->file);
			
	} else {
	
		$url  = "https://api.bitbucket.org/1.0/repositories".$uri."raw/".$node."/".$file->file;
		$path = $file->file;
		
		$dirname = dirname($path);
		if (!is_dir($dirname)){
		    mkdir($dirname, 0775, true);
		}
		
		$fp = fopen($path, 'w');
		
		$ch = curl_init($url);
		curl_setopt($ch, CURLOPT_USERPWD, "$username:$password");
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
		curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); 
		curl_setopt($ch, CURLOPT_FILE, $fp);
		
		$data = curl_exec($ch);
		
		curl_close($ch);
		fclose($fp);
		
	}	
		
}