PHP Copy and Paste detection tool installation

In order to install it you will need to:

1. Upgrade to latest PHPUnit 3.7
2. Install https://github.com/theseer/fDOMDocument (see instructions inside)
3. Install https://github.com/sebastianbergmann/phpcpd (see instructions inside)

Then you can run it like:

$ phpcpd /path/to/project/directory

You will see the copy&paste report:

Found 3 exact clones with 53 duplicated lines in 5 files:

  - /usr/local/src/phpunit/PHPUnit/Framework/Constraint/Or.php:136-157
    /usr/local/src/phpunit/PHPUnit/Framework/Constraint/And.php:143-164

  - /usr/local/src/phpunit/PHPUnit/Framework/Constraint/Or.php:136-157
    /usr/local/src/phpunit/PHPUnit/Framework/Constraint/Xor.php:141-162

  - /usr/local/src/phpunit/PHPUnit/Framework/Comparator/Scalar.php:121-132
    /usr/local/src/phpunit/PHPUnit/Framework/Comparator/Numeric.php:102-113

0.19% duplicated lines out of 27640 total lines of code.

Easy start with Jenkins for PHP developer

Lets look into the quick and minimal Jenkins setup for middle sized fast growing PHP project.
In order to easy follow this article you should at least:

• have PEAR installed on server
• use phpUnit for unit tests
• build your app with Phing

Drupal produces warnings with file_check_directory() on low bootstrap levels

I've found interesting issue with file_check_directory() in Drupal. It generates errors like:

Warning: array_key_exists() [function.array-key-exists]: The second argument should be either an array or an object in /.../public_html/includes/module.inc on line 245

Convert OpenSSH keys to Putty on Linux with puttygen

If you need a Putty ppk key on Linux when you don't have Windows installation, for example when using Windows application that requires ppk-key under Wine. You can use "puttygen" CLI tool in that case.

On Ubuntu:

# apt-get install putty-tools

$ cd ~/.ssh/
$ puttygen id_dsa -o id_dsa.ppk

Make sure you've replaced the "id_dsa" with your private key filename.

Profit!

Xdebug PHP scipts profiling examples

Look at this presentation to become familiar with PHP profiling:

http://www.slideshare.net/samkeen/profiling-php-with-xdebug-webgrind

And also look into this article for more details:

http://devzone.zend.com/article/2899

Edit PHP.ini and add the line:

xdebug.profiler_enable = 1

Restart the Apache and you will find the profiling dumps in /tmp/ .

PHP debug process internals with xdebug

Xdebug debugger allows you to interactively walk through script execution and inspect the call traces and variable values in each appropriate scope.

Why install xdebug?

Even without actual integration with your IDE you are able to get benefit from xdebug on your development machine: