Add the ability to display the core ini entries via "php --ri core"

sapi/cli/php_cli.c

@@ -1306,8 +1306,12 @@ int main(int argc, char *argv[])
 					zend_module_entry *module;
 
 					if (zend_hash_find(&module_registry, lcname, len+1, (void**)&module) == FAILURE) {
-						zend_printf("Extension '%s' not present.\n", reflection_what);
-						exit_status = 1;
+						if(!strcmp(reflection_what, "core")) {
+							display_ini_entries(NULL);
+						} else {
+							zend_printf("Extension '%s' not present.\n", reflection_what);
+							exit_status = 1;
+						}
 					} else {
 						php_info_print_module(module TSRMLS_CC);
 					}