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run code in 300+ PHP versions simultaneously
<?hh function testY(){ for($i=0;$i<10;$i++) yeld $i; } foreach(testY() as $key) echo "$key\n";
Output for 5.4.0 - 5.4.32, 7.2.29 - 7.2.33, 7.3.16 - 7.3.31, 7.4.3 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
<?hh function testY(){ for($i=0;$i<10;$i++) yeld $i; } foreach(testY() as $key) echo "$key\n";
Output for 8.0.13
Parse error: syntax error, unexpected token "function" in /in/0fHW4 on line 4
Process exited with code 255.
Output for 5.4.34 - 5.4.35, 7.3.32 - 7.3.33, 7.4.33
Parse error: syntax error, unexpected 'function' (T_FUNCTION) in /in/0fHW4 on line 4
Process exited with code 255.

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