Merge pull request #23 from bwoebi/info_literal_fix

Info literal fix

Author: felipensp

phpdbg.c

@@ -338,7 +338,7 @@ static void php_sapi_phpdbg_register_vars(zval *track_vars_array TSRMLS_DC) /* {
 
 static inline int php_sapi_phpdbg_ub_write(const char *message, unsigned int length TSRMLS_DC) /* {{{ */
 {
-	return phpdbg_write(message);
+	return phpdbg_write("%s", message);
 } /* }}} */
 
 static inline void php_sapi_phpdbg_flush(void *context)  /* {{{ */

phpdbg_info.c

@@ -172,11 +172,13 @@ PHPDBG_INFO(literal) /* {{{ */
 		}
 
 		while (literal < ops->last_literal) {
-			phpdbg_write("|-------- C%lu -------> [", literal);
-			zend_print_zval(
-				&ops->literals[literal].constant, 0);
-			phpdbg_write("]");
-			phpdbg_writeln(EMPTY);
+			if (Z_TYPE(ops->literals[literal].constant) != IS_NULL) {
+				phpdbg_write("|-------- C%lu -------> [", literal);
+				zend_print_zval(
+					&ops->literals[literal].constant, 0);
+				phpdbg_write("]");
+				phpdbg_writeln(EMPTY);
+			}
 			literal++;
 		}
 	} else {