PHP4_CLASSES:OO tests from the php 4.4 test suite.
PHP4_FUNC:function tests from the php 4.4 test suite
PHP4_LANG:Language tests from the php 4.4 test suite
PHP51_BASIC:Basic php tests from the test suite
PHP51_CLASSES:OO tests from the PHP 5.1 test suite
PHP51_FUNC:Function tests from php 5.1 test suite
PHP51_LANG:PHP 5.1 language tests
PHP51_STRINGS:PHP 5.1 string tests
PHP5_CLASSES:OO tests from the PHP5 test suite
PHP5_LANG:PHP 5 language tests