zend_case_fold_string ... &reftitle.description; #include <zend_unicode.h> zend_case_fold_string UChar**dest int32_t*dest_len UChar*src int32_tsrc_len uint32_toptions UErrorCode*status ... &reftitle.parameters; dest ... dest_len ... src ... src_len ... options ... status ... &reftitle.returnvalues; ...