PHP_CompatInfo : The Definitive Guide

Improved PHP5 detection: with new data source version.xml (revision 1.8) and funclist.txt (revision 1.39).

Dropped support of PHP3 detection: due to content of new data source version.xml (1.8) and funclist.txt (1.39)

Command line interface: under windows (pci.bat) and unix (pci.php) have now unified name. Idea came from PHP_CodeSniffer package that allow to fix lot of errors/warnings of coding standard.

Debug output of CLI gave now origin of extension (from PECL or not) and minimum extension version (rather than PHP). See example docs/examples/checkExtensions.php