fork download
copy 
  1. <?php
  2.  
  3. $x = sqrt(-1);
  4. var_dump($x);
  5. var_dump(is_nan($x));
  6. var_dump(is_numeric($x));
Success #stdin #stdout 0.01s 24276KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
float(NAN)
bool(true)
bool(true)
https://ideone.com/QIMS6l
language:
PHP (php 7.3.5)
created:
4 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!