3v4l.org

run code in 300+ PHP versions simultaneously
<?php function __autoload($class_name) { include $class_name . '.php'; } $class = 'Foo..Test'; class_exists($class); var_dump($class instanceof stdClass); ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Fatal error: __autoload() is no longer supported, use spl_autoload_register() instead in /in/q1E3r on line 4
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Deprecated: __autoload() is deprecated, use spl_autoload_register() instead in /in/q1E3r on line 4 bool(false)
Output for 5.4.24 - 5.4.45, 5.5.8 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.3.32 - 7.3.33
bool(false)
Output for 5.5.0 - 5.5.7
Warning: include(): open_basedir restriction in effect. File(Foo..Test.php) is not within the allowed path(s): (/tmp:/in:/etc) in /in/q1E3r on line 5 Warning: include(Foo..Test.php): failed to open stream: Operation not permitted in /in/q1E3r on line 5 Warning: include(): Failed opening 'Foo..Test.php' for inclusion (include_path='.:') in /in/q1E3r on line 5 bool(false)
Output for 5.4.0 - 5.4.23
Warning: include(Foo..Test.php): failed to open stream: No such file or directory in /in/q1E3r on line 5 Warning: include(): Failed opening 'Foo..Test.php' for inclusion (include_path='.:') in /in/q1E3r on line 5 bool(false)

preferences:
264.99 ms | 402 KiB | 378 Q