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<?php $array = [ (object)['label' => 'Test 1', 'session' => 2], (object)['label' => 'Test 2', 'session' => 2], (object)['label' => 'Test 3', 'session' => 42], (object)['label' => 'Test 4', 'session' => 9], ]; echo sizeof(array_column((array)$array, null, 'session'));
Output for git.master, git.master_jit, rfc.property-hooks
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