Online PHP editor | refs for jEmee

<?php $classes = array('DateInterval', 'DateTimeImmutable', 'DateTime', 'DateTimeZone'); foreach ($classes as $class){ echo "Signature of $class::_set_state\n"; try{ $rm = new ReflectionMethod($class, '__set_state'); var_dump($rm->getNumberOfParameters()); var_dump($rm->getNumberOfRequiredParameters()); } catch(Exception $e) { echo "$class: " . $e; } } echo "End of param counts for __set_state\n\n"; try { var_export(DateTime::__set_state(array( 'date' => '2017-06-08 05:11:40.907706', 'timezone_type' => 3, 'timezone' => 'UTC', ))); } catch(Error $e) { echo "Couldn't call DateTime::__set_state: " . $e . "\n"; } // DateTime::__set_state(); // would trigger Warning: DateTime::__set_state() expects exactly 1 parameter, 0 given in php shell code on line 1 // needs 2, datefmt and bool, according to docs (not 100% sure) echo "datefmt_set_lenient\n"; $rf = new ReflectionFunction('datefmt_set_lenient'); var_dump($rf->getNumberOfParameters()); var_dump($rf->getNumberOfRequiredParameters());