Warning: Undefined array key "goal" in /home/public/projects/datemath/index.php on line 20

Deprecated: htmlentities(): Passing null to parameter #1 ($string) of type string is deprecated in /home/public/projects/datemath/index.php on line 20

Fatal error: Uncaught Error: Call to undefined function ctype_digit() in /home/public/projects/datemath/index.php:21 Stack trace: #0 {main} thrown in /home/public/projects/datemath/index.php on line 21