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<?php function bar() {} class C { static function foo($x = null) {} } $reflMethod = new ReflectionMethod('C', 'foo'); $params = $reflMethod->getParameters(); $param = $params[0]; $param->isOptional(); $reflFunction = new ReflectionFunction('bar'); $params = $reflFunction->getParameters(); $param = $params[0]; $param->isOptional();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Warning: Undefined array key 0 in /in/Q9heA on line 16 Fatal error: Uncaught Error: Call to a member function isOptional() on null in /in/Q9heA:17 Stack trace: #0 {main} thrown in /in/Q9heA on line 17
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined offset: 0 in /in/Q9heA on line 16 Fatal error: Uncaught Error: Call to a member function isOptional() on null in /in/Q9heA:17 Stack trace: #0 {main} thrown in /in/Q9heA on line 17
Process exited with code 255.
Output for 7.3.32 - 7.3.33
Fatal error: Uncaught Error: Call to a member function isOptional() on null in /in/Q9heA:17 Stack trace: #0 {main} thrown in /in/Q9heA on line 17
Process exited with code 255.
Output for 5.6.8 - 5.6.28
Notice: Undefined offset: 0 in /in/Q9heA on line 16 Fatal error: Call to a member function isOptional() on null in /in/Q9heA on line 17
Process exited with code 255.
Output for 5.4.1 - 5.4.45, 5.5.24 - 5.5.35
Notice: Undefined offset: 0 in /in/Q9heA on line 16 Fatal error: Call to a member function isOptional() on a non-object in /in/Q9heA on line 17
Process exited with code 255.

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