--TEST-- PHPC-1839: Referenced, out-of-scope, interned string in typeMap (PHP >= 8.1) --SKIPIF-- --FILE-- &$rootValue, 'document' => &$documentValue]; return $typemap; } $typemap = createTypemap(); $bson = MongoDB\BSON\fromPhp((object) []); echo "Before:\n"; debug_zval_dump($typemap); MongoDB\BSON\toPHP($bson, $typemap); echo "After:\n"; debug_zval_dump($typemap); ?> ===DONE=== --EXPECT-- Before: array(2) refcount(2){ ["root"]=> reference refcount(1) { string(5) "array" interned } ["document"]=> reference refcount(1) { string(5) "array" interned } } After: array(2) refcount(2){ ["root"]=> reference refcount(1) { string(5) "array" interned } ["document"]=> reference refcount(1) { string(5) "array" interned } } ===DONE===