3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function hello world($greeting=null){ $w = 'World'; echo "$greeting, $w!<br>\n"; } hello world('Howdy'); // Howdy, World! $command = "hello world"; $command('Hi'); // Hi, World! $content = "command"; echo $$commnd("Greetings"); // , World!
Output for 7.0.0 - 7.1.0
Howdy, World!<br> Hi, World!<br> Notice: Undefined variable: commnd in /in/nv0F5 on line 11 Notice: Undefined variable: in /in/nv0F5 on line 11 Fatal error: Uncaught Error: Function name must be a string in /in/nv0F5:11 Stack trace: #0 {main} thrown in /in/nv0F5 on line 11
Process exited with code 255.
Output for 5.0.4 - 5.0.5, 5.1.1 - 5.6.28
Howdy, World!<br> Hi, World!<br> Notice: Undefined variable: commnd in /in/nv0F5 on line 11 Notice: Undefined variable: in /in/nv0F5 on line 11 Fatal error: Function name must be a string in /in/nv0F5 on line 11
Process exited with code 255.
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/nv0F5 on line 11
Process exited with code 255.
Output for 5.0.0 - 5.0.3
Howdy, World!<br> Hi, World!<br> Notice: Undefined variable: commnd in /in/nv0F5 on line 11 Notice: Undefined variable: in /in/nv0F5 on line 11 Fatal error: Function name must be a string in /in/nv0F5 on line 11
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Howdy, World!<br> Hi, World!<br> Notice: Undefined variable: commnd in /in/nv0F5 on line 11 Notice: Undefined variable: in /in/nv0F5 on line 11 Fatal error: Call to undefined function: () in /in/nv0F5 on line 11
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Howdy, World!<br> Hi, World!<br> Notice: Undefined variable: commnd in /in/nv0F5 on line 11 Notice: Undefined variable: in /in/nv0F5 on line 11 Fatal error: Call to undefined function: () in /in/nv0F5 on line 11
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Howdy, World!<br> Hi, World!<br> Notice: Undefined variable: commnd in /in/nv0F5 on line 11 Notice: Undefined variable: in /in/nv0F5 on line 11 Fatal error: Call to undefined function: () in /in/nv0F5 on line 11