laravel validation only numbers code example

Example 1: numbric validate laravel

$rules = ['Fno' => 'numeric|min:2|max:5', 'Lno' => 'numeric|min:2'];

Example 2: laravel validation numeric vs integer

Integer is like a whole number without fraction: 2, 256, 2048
  
Numeric is any number including floating point numbers: 2.478, +0123.45e6