1--TEST-- 2The SensitiveParameter attribute suppresses the single sensitive argument for closures. 3--FILE-- 4<?php 5 6$test = function (#[SensitiveParameter] $sensitive) 7{ 8 debug_print_backtrace(); 9 var_dump(debug_backtrace()); 10 var_dump((new Exception)->getTrace()); 11}; 12 13$test('sensitive'); 14 15?> 16--EXPECTF-- 17#0 %ssensitive_parameter_closure.php(10): {closure}(Object(SensitiveParameterValue)) 18array(1) { 19 [0]=> 20 array(4) { 21 ["file"]=> 22 string(%d) "%ssensitive_parameter_closure.php" 23 ["line"]=> 24 int(10) 25 ["function"]=> 26 string(9) "{closure}" 27 ["args"]=> 28 array(1) { 29 [0]=> 30 object(SensitiveParameterValue)#%d (0) { 31 } 32 } 33 } 34} 35array(1) { 36 [0]=> 37 array(4) { 38 ["file"]=> 39 string(%d) "%ssensitive_parameter_closure.php" 40 ["line"]=> 41 int(10) 42 ["function"]=> 43 string(9) "{closure}" 44 ["args"]=> 45 array(1) { 46 [0]=> 47 object(SensitiveParameterValue)#%d (0) { 48 } 49 } 50 } 51} 52