<?php for ($x > 10; $x < 10; $x++) { echo "x = $x\n"; }
Standard input is empty
x = x = 1 x = 2 x = 3 x = 4 x = 5 x = 6 x = 7 x = 8 x = 9
PHP Notice: Undefined variable: x in /home/PHvD6k/prog.php on line 3 PHP Notice: Undefined variable: x in /home/PHvD6k/prog.php on line 3 PHP Notice: Undefined variable: x in /home/PHvD6k/prog.php on line 4 PHP Notice: Undefined variable: x in /home/PHvD6k/prog.php on line 3