is_numeric

  • We can check if a variable is numeric in Ruby using Object#is_a?.

    PHP

    $number = 2;
$result = is_numeric($number);
var_export($result);
// => true
 
$number = 1.2;
$result = is_numeric($number);
var_export($result);
// => true

    Ruby

    number = 2
p number.is_a?(Numeric)
# => true
 
number = 1.2
p number.is_a?(Numeric)
# => true

    see also

← is_null is_object →

Looking for Rails or PHP web application development, integration, and training?

Rails for PHP is brought to you by Maintainable Software. Get custom web applications and personalized training from the authors of the book and website.