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--TEST-- Bug #46215 (json_encode mutates its parameter and has some class-specific state) --SKIPIF-- <?php if (!extension_loaded("json")) { die('skip JSON extension not available in this build'); } ?> --FILE-- <?php class foo { protected $a = array(); } $a = new foo; $x = json_encode($a); print_r($a); ?> --EXPECT-- foo Object ( [a:protected] => Array ( ) )