3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class Foo { function bar() { echo "Hello World\n"; } } $cb = array(new Foo, "bar"); $cb(); $cb = "strlen"; var_dump($cb("foo"));
Output for 5.4.0 - 5.6.26, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
Hello World int(3)
Output for 5.0.0 - 5.3.29
Fatal error: Function name must be a string in /in/62BeK on line 12
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Notice: Array to string conversion in /in/62BeK on line 12 Fatal error: Call to undefined function: array() in /in/62BeK on line 12
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Notice: Array to string conversion in /in/62BeK on line 12 Fatal error: Call to undefined function: array() in /in/62BeK on line 12
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Notice: Array to string conversion in /in/62BeK on line 12 Fatal error: Call to undefined function: array() in /in/62BeK on line 12