3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function numbers() { $numbers = [1, 2, 3]; foreach($numbers as $number) { echo $number . PHP_EOL; yield letters(); } } function letters() { $letters = ['A', 'B', 'C']; foreach ($letters as $letter) { echo $letter . PHP_EOL; yield numbers(); } } numbers();
based on fvMWj
Output for 5.5.0 - 7.2.0
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected 'letters' (T_STRING) in /in/gsGp3 on line 9
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/gsGp3 on line 5
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 '[' in /in/gsGp3 on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/gsGp3 on line 5
Process exited with code 255.