Deep inside your copied spreadsheets...
beneath vendor exports...
hiding between innocent looking letters...
lurk strange creatures: ¬ Æ √ ™ “ ” ‘ ’ – - ... ± ≠ ≤ ≥ µ Ω π € Â Ã â £ ¥ ¢ Α Β Ο С
They slip past your eyes...
break your SQL...
crash your PHP...
and laugh while you debug for two hours.
U+00AC)Most bugs aren’t logic problems.
They’re invisible text monsters.