3v4l.org

run code in 500+ PHP versions simultaneously
<?php function arrayProvider() { yield [ 'one', 'two', 'three', ]; yield [ 'four', 'five', 'six', ]; yield [ 'seven', 'eight', 'nine', ]; } function iterateValues(array $array) { foreach ($array as $value) { yield $value; } } function g1() { foreach (arrayProvider() as $array) { $iterator = iterateValues($array); $iterator->next(); yield from $iterator; } } function g2() { yield from g1(); } foreach (g2() as $s) { echo $s . PHP_EOL; }
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.33, 8.4.1 - 8.4.24, 8.5.0 - 8.5.9
two three six nine
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Parse error: syntax error, unexpected '$iterator' (T_VARIABLE) in /in/Aq6NF on line 37
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '[' in /in/Aq6NF on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/Aq6NF on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Aq6NF on line 5
Process exited with code 255.
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