- var_dump: documentation ( source)
- defined: documentation ( source)
- constant: documentation ( source)
<?php
foreach(array('T_FINALLY', 'T_INSTEADOF', 'T_TRAIT', 'T_TRAIT_C', 'T_YIELD') as $c) {
echo $c, ': ';
if(defined($c))
var_dump(constant($c));
else
var_dump(-1);
}