4 ms·

'z'++ is not 'aa'. 'z'++ is not even valid PHP. $z='z';$p=$z++; does nothing either. it's only in the for-loop context.

• Nitramp 16y ago
  Not really, after $p = $z++ $p is 'z', $z is 'aa', as you'd kind-of expect. But the difference between literals and expressions/variable references of course just adds icing to the cake of bizareness.
• rythie 16y ago
  try... <?php $z='z'; echo ++$z; which produces 'aa'