pgsqlSetNoticeCallback: test case for closure callback

php#4823 (comment)
Closure cannot be used as a callback if not persisted.

Author: outtersg

ext/pdo_pgsql/tests/issue78621_closure.phpt

@@ -0,0 +1,30 @@
+--TEST--
+pgsqlSetNoticeCallback catches Postgres "raise notice".
+--SKIPIF--
+<?php
+if (!extension_loaded('pdo') || !extension_loaded('pdo_pgsql')) die('skip not loaded');
+require_once dirname(__FILE__) . '/../../../ext/pdo/tests/pdo_test.inc';
+require_once dirname(__FILE__) . '/config.inc';
+PDOTest::skip();
+?>
+--FILE--
+<?php
+function disp($message) { echo trim($message)."\n"; }
+function attach($db)
+{
+    $db->pgsqlSetNoticeCallback(function($message) { echo trim($message)."\n"; });
+    // https://github.com/php/php-src/pull/4823#pullrequestreview-335623806
+    $eraseCallbackMemoryHere = (object)[1];
+}
+require dirname(__FILE__) . '/issue78621.inc';
+?>
+--EXPECT--
+NOTICE:  I tampered your data, did you know?
+array(1) {
+  [0]=>
+  array(1) {
+    ["a"]=>
+    string(2) "oh"
+  }
+}
+Done