Online PHP editor | output for 8XdT0

<?php echo '0: '.(boolval(0) ? 'true' : 'false')."\n"; echo '42: '.(boolval(42) ? 'true' : 'false')."\n"; echo '0.0: '.(boolval(0.0) ? 'true' : 'false')."\n"; echo '4.2: '.(boolval(4.2) ? 'true' : 'false')."\n"; echo '"": '.(boolval("") ? 'true' : 'false')."\n"; echo '"string": '.(boolval("string") ? 'true' : 'false')."\n"; echo '"0": '.(boolval("0") ? 'true' : 'false')."\n"; echo '"1": '.(boolval("1") ? 'true' : 'false')."\n"; echo '[1, 2]: '.(boolval([1, 2]) ? 'true' : 'false')."\n"; echo '[]: '.(boolval([]) ? 'true' : 'false')."\n"; echo 'stdClass: '.(boolval(new stdClass) ? 'true' : 'false')."\n"; echo '0: '.(bool)0 ? 'true' : 'false')."\n"; echo '42: '.(bool)42 ? 'true' : 'false')."\n"; echo '0.0: '.(bool)0.0 ? 'true' : 'false')."\n"; echo '4.2: '.(bool)4.2 ? 'true' : 'false')."\n"; echo '"": '.(bool)"" ? 'true' : 'false')."\n"; echo '"string": '.(bool)"string" ? 'true' : 'false')."\n"; echo '"0": '.(bool)"0" ? 'true' : 'false')."\n"; echo '"1": '.(bool)"1" ? 'true' : 'false')."\n"; echo '[1, 2]: '.(bool)[1, 2] ? 'true' : 'false')."\n"; echo '[]: '.(bool)[] ? 'true' : 'false')."\n"; echo 'stdClass: '.(bool)new stdClass ? 'true' : 'false')."\n";