3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php spl_autoload_register(function ($class) { echo "Autoloading $class"; }); var_dump(class_exists('Foo')); eval('class Foo{} echo "defined Foo";'); class_alias('Foo', 'Bar'); var_dump(class_exists('Bar'));
based on Mgi1G
Output for 5.3.0 - 7.2.0
Autoloading Foobool(false) defined Foobool(true)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/q4ala on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/q4ala on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/q4ala on line 3
Process exited with code 255.