php

Issues found in PHP4 to PHP5 upgrades:

PHP Faqts page on PHP5

PHP4 to PHP5 Migration Manual

Specific issues identified in PHP5 manual

Some of the PHP debug functions like debug_print_backtrace are only supported in PHP 5 which is not the PHP version with our current configuration. However, Some of other debug functions like debug_backtace, error_log etc are supported in PHP 4.3.0 and above and these functions work with the present configuration setting of PHP and Apache server.