Fix #19484 by setting the notice processor to a no-op when a persistent connection is cleaned for future use

Author: MagicalTux

ext/pgsql/pgsql.c

@@ -328,6 +328,10 @@ static void _close_pgsql_plink(zend_resource *rsrc)
 
 static void _php_pgsql_notice_handler(void *l, const char *message)
 {
+	if (l == NULL) {
+		/* This connection does not currently have a valid context, ignore this notice */
+		return;
+	}
 	if (PGG(ignore_notices)) {
 		return;
 	}
@@ -360,6 +364,9 @@ static int _rollback_transactions(zval *el)
 
 	link = (PGconn *) rsrc->ptr;
 
+	/* unset notice processor */
+	PQsetNoticeProcessor(link, _php_pgsql_notice_handler, NULL);
+
 	if (PQsetnonblocking(link, 0)) {
 		php_error_docref("ref.pgsql", E_NOTICE, "Cannot set connection to blocking mode");
 		return -1;