You need to obtain the source distributions of Apache and PHP from https://www.apache.org and https://www.php.net. Instructions for building Apache and PHP with Easysoft ODBC-ODBC Bridge can be found in the Apache_PHP file contained in the docs directory of the ODBC-ODBC Bridge distribution.
Please make sure you carefully read the INSTALL files that come with Apache and PHP . They contain valuable information that can save you a lot of time.