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<?php var_dump([ $original_set = [ 'arrayobject' => new arrayobject( [3] ), 'reference?' => [5] ], $original_serialized = serialize( $original_set ), $original_unserialized = unserialize( $original_serialized ), $withreference_serialized = preg_replace( '/a:1:{i:0;i:5;}}/', 'R:4;}', $original_serialized ), $withreference_unserialized = unserialize( $withreference_serialized ), $withreference_unserialized['arrayobject'][9] = 8, $withreference_unserialized, $withreference_unserialized['arrayobject'][9] === $withreference_unserialized['reference?'][9] ? 'looks like a reference' : 'does not look like a reference' , ]) ;
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught InvalidArgumentException: Passed variable is not an array or object in /in/eGMQ1:8 Stack trace: #0 [internal function]: ArrayObject->__unserialize(Array) #1 /in/eGMQ1(8): unserialize('a:2:{s:11:"arra...') #2 {main} thrown in /in/eGMQ1 on line 8
Process exited with code 255.

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