- Fixed memory leaks in readline_completion_function()

ext/readline/readline.c

@@ -169,8 +169,10 @@ PHP_MINIT_FUNCTION(readline)
 
 PHP_RSHUTDOWN_FUNCTION(readline)
 {
-	if (_readline_completion) 
+	if (_readline_completion) {
+		zval_dtor(_readline_completion);
 		FREE_ZVAL(_readline_completion);
+	}
 #if HAVE_RL_CALLBACK_READ_CHAR
 	if (_prepped_callback) {
 		rl_callback_handler_remove();
@@ -494,6 +496,7 @@ PHP_FUNCTION(readline_completion_function)
 	zval_dtor(&name);
 
 	if (_readline_completion) {
+		zval_dtor(_readline_completion);
 		FREE_ZVAL(_readline_completion);
 	}
 

ext/readline/tests/readline_completion_function_001.phpt

@@ -0,0 +1,25 @@
+--TEST--
+readline_completion_function(): Basic test
+--SKIPIF--
+<?php if (!extension_loaded("readline")) die("skip"); ?>
+--FILE--
+<?php
+
+function foo() { }
+
+$data = array(
+	'foo',
+	'strtolower',
+	1,
+	1.1231
+);
+
+foreach ($data as $callback) {
+	readline_completion_function($callback);
+}
+
+?>
+--EXPECTF--
+Warning: readline_completion_function(): 1 is not callable in %s on line %d
+
+Warning: readline_completion_function(): 1.1231 is not callable in %s on line %d