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<?php $test_data = 'O:14:"SuperCustomXyz":1:{s:17:" SuperCustomXyz x";s:4:"test";}'; $obj = unserialize($test_data); var_dump( $obj, is_object($obj), $obj instanceof __PHP_Incomplete_Class );
Output for git.master, git.master_jit, rfc.property-hooks
object(__PHP_Incomplete_Class)#1 (2) { ["__PHP_Incomplete_Class_Name"]=> string(14) "SuperCustomXyz" [" SuperCustomXyz x"]=> string(4) "test" } bool(true) bool(true)

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