fork download
copy 
  1. <?php
  2.  
  3. $world = "world!";
  4.  
  5. echo "Hello_$world\n";
  6. echo "Hello_{$world}\n";
  7. echo "Hello_" . $world . "\n";
  8. echo 'Hello_$world\n';
  9.  
  10. // your code goes here
Success #stdin #stdout 0.02s 20568KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Hello_world!
Hello_world!
Hello_world!
Hello_$world\n
https://ideone.com/zUlw4q
language:
PHP (php 7.3.5)
created:
11 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!