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diff --git a/ext/standard/tests/serialize/bug68545.phpt b/ext/standard/tests/serialize/bug68545.phpt
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+--TEST--
+Bug #68545 NULL pointer dereference in unserialize.c:var_push_dtor
+--FILE--
+<?php
+var_dump(unserialize('a:6:{a:6:{s:3:"322";s:3:"bar";s:3:"bar";s:3:"foo";a:6:{a:6:{s:3:"322";s:3:"bar";s:3:"bar";s:3:"foo";s:3:"bar";a:6:{a:6:{s:3:"322";s:3:"bar";s:3:"bar";s:3:"foo";a:6:{a:6:{s:3:"322";s:3:"bar";s:3:"b22";s:3:"bar";s:3:"bar";s:3:"foo";s:3:"bar";a:6:{a:6:{s:3:"322";s:3:"bar";s:3:"bar";s:3:"foo";s:3:"bar";s:3:"bar";'));
+?>
+===DONE===
+--EXPECTF--
+Notice: unserialize(): Error at offset %d of %d bytes in %sbug68545.php on line %d
+bool(false)
+===DONE===