Spike PHPCoverage is a tool for measuring and reporting
code coverage provided by the test suite of a PHP
application. It can instrument and record the line coverage
information for any PHP script at runtime. It also provides
an extensible reporting mechanism with a standard HTML
report implemented out of the box. The default report
displays the summary information about the code coverage
for an application and also shows the detailed information
about a file including which lines were actually executed and
with what frequency. It is possible to specify the directories
and files that should be included and/or excluded from a
coverage measurement.