Copyright (c) 2009, Bashar Al-Fallouji email@example.com All rights reserved.
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@package phpApiCompare @author Bashar Al-Fallouji firstname.lastname@example.org @copyright 2009 Bashar Al-Fallouji email@example.com @license http://www.opensource.org/licenses/bsd-license.php BSD License @since File available since Release 1.0.0
PHP Code Comparator is Command Line Script allowing to compare different versions of a library, framework or package and detect changes in terms of class existence or method definitions.
If you ever wanted to have a way to quickly identify what classes have been altered or methods have been changed between two different versions of the same package, PHP Code Comparator might be the tool you were looking for.
Instead of using a diff tool, you can simply use this PHP command line script. It will basically parse a folder recursively, detect any defined classes and extract the various methods and parameters. This will then be performed on the second version of your library. Then, a summary will be displayed showing the differences that have been detected.
The parsing is using the PHP tokenizer (www.php.net/tokenizer) and it will detect classes, interfaces, methods and parameters.
Also, this tool will detect if a class has been removed, if new classes have been added, if methods have been removed or added and also if the signature of a method has changed.
Where can I download it ?
You can browse the code and download it from github.com.
You can also directly get the source code from the git repository.
git clone git://github.com/alfallouji/PHP-Code-Comparator.git
How can I use it ?
This tool is a simple Command Line Script. Therefore, it can be used by just using the php interpreter.
Usage: php compare.php oldFolder newFolder [-c] [-m] [-a] [-h] -c, --classes Compare classes -m, --methods Compare methods -a, --all Compare all -h, --help print a summary of the options Example: php compare.php /var/www/cms1.0/api /var/www/cms2.0/api -a
Comparing the classes of two different version of a project
The following command will compare the classes of version 1.6 and 1.7 of Wordpress.
php compare.php ../compare/wordpress1.6/ ../compare/wordpress1.7/ -c
Here is the result of the comparison.
Code Comparator ver1.0 by Bashar Al-Fallouji Classes that dont exist anymore… None… New classes … Class OPML_Import @ ../compare/wordpress1.7/wp-admin/import/opml.php Class WP_Filesystem_SSH2 @ ../compare/wordpress1.7/wp-admin/includes/class-wp-filesystem-ssh2.php Class WP_Http @ ../compare/wordpress1.7/wp-includes/http.php Class WP_Http_Fsockopen @ ../compare/wordpress1.7/wp-includes/http.php Class WP_Http_Fopen @ ../compare/wordpress1.7/wp-includes/http.php Class WP_Http_Streams @ ../compare/wordpress1.7/wp-includes/http.php Class WP_Http_ExtHTTP @ ../compare/wordpress1.7/wp-includes/http.php Class WP_Http_Curl @ ../compare/wordpress1.7/wp-includes/http.php Class EnchantSpell @ ../compare/wordpress1.7/wp-includes/js/tinymce/plugins/spellchecker/classes/EnchantSpell.php Class Walker_Comment @ ../compare/wordpress1.7/wp-includes/comment-template.php
Comparing the methods of two different version of a project
The following command will compare the methods of version 1.6 and 1.7 of Wordpress.
php compare.php /var/www/perso/compare/wordpress1.6/ /var/www/perso/compare/wordpress1.7/ -m
Here is the result of the comparison.
Code Comparator ver1.0 by Bashar Al-Fallouji Comparing methods between V1:”/var/www/perso/compare/wordpress1.6/” and V2:”/var/www/perso/compare/wordpress1.7/” Class Walker_Category_Checklist @ /var/www/perso/compare/wordpress1.6/wp-admin/includes/template.php Parameters for method _wp_get_comment_list may have changed V1: $status, $s, $start, $num V2: $status, $s, $start, $num, $post, $type Parameters for method _wp_comment_row may have changed V1: $comment_id, $mode, $comment_status, $checkbox V2: $comment_id, $mode, $comment_status, $checkbox, $from_ajax Parameters for method touch_time may have changed V1: $edit, $for_post, $tab_index V2: $edit, $for_post, $tab_index, $mult Class PHPMailer @ /var/www/perso/compare/wordpress1.6/wp-includes/class-phpmailer.php Parameters for method EncodeQP may have changed V1: $str V2: $input, $line_max, $space_conv Class Walker_Page @ /var/www/perso/compare/wordpress1.6/wp-includes/classes.php Parameters for method start_el may have changed V1: $output, $page, $depth, $current_page, $args V2: $output, $page, $depth, $args, $current_page