Warning: Use of undefined constant y - assumed 'y' (this will throw an Error in a future version of PHP) in /in/X6Ceg on line 6
Warning: Use of undefined constant z - assumed 'z' (this will throw an Error in a future version of PHP) in /in/X6Ceg on line 6
string(3) "abc"
string(1) "y"
string(1) "z"
Notice: Use of undefined constant y - assumed 'y' in /in/X6Ceg on line 6
Notice: Use of undefined constant z - assumed 'z' in /in/X6Ceg on line 6
string(3) "abc"
string(1) "y"
string(1) "z"