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run code in 150+ php & hhvm versions
Bugs & Features
<?php function gen_one_to_three() { yield 1; yield 'hi' => 'hui'; yield 4 => 5; yield 6; } foreach(get_one_to_three() as $k => $v) { echo $k, ' => ', $v, "\n"; } ?>
based on AB75F
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Call to undefined function get_one_to_three() in /in/ZtBo4:9 Stack trace: #0 {main} thrown in /in/ZtBo4 on line 9
Process exited with code 255.
Output for 5.5.24 - 5.6.28, hhvm-3.12.0
Fatal error: Call to undefined function get_one_to_three() in /in/ZtBo4 on line 9
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '1' (T_LNUMBER) in /in/ZtBo4 on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected T_LNUMBER in /in/ZtBo4 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_LNUMBER in /in/ZtBo4 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/ZtBo4 on line 3
Process exited with code 255.