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<?php function ping_pong() { for ($i = 1; $i <= 10; $i++) { echo 'a' . $i . PHP_EOL; $val = (yield $i); echo 'b' . $i . PHP_EOL; //echo 'ping: ' . $val . PHP_EOL; } } $generator = ping_pong(); foreach ($generator as $value) { echo 'c' . $i . PHP_EOL; //echo 'pong: ' . $generator->send($value) . PHP_EOL; }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
a1 Warning: Undefined variable $i in /in/3t0EW on line 17 c b1 a2 Warning: Undefined variable $i in /in/3t0EW on line 17 c b2 a3 Warning: Undefined variable $i in /in/3t0EW on line 17 c b3 a4 Warning: Undefined variable $i in /in/3t0EW on line 17 c b4 a5 Warning: Undefined variable $i in /in/3t0EW on line 17 c b5 a6 Warning: Undefined variable $i in /in/3t0EW on line 17 c b6 a7 Warning: Undefined variable $i in /in/3t0EW on line 17 c b7 a8 Warning: Undefined variable $i in /in/3t0EW on line 17 c b8 a9 Warning: Undefined variable $i in /in/3t0EW on line 17 c b9 a10 Warning: Undefined variable $i in /in/3t0EW on line 17 c b10
Output for 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
a1 Notice: Undefined variable: i in /in/3t0EW on line 17 c b1 a2 Notice: Undefined variable: i in /in/3t0EW on line 17 c b2 a3 Notice: Undefined variable: i in /in/3t0EW on line 17 c b3 a4 Notice: Undefined variable: i in /in/3t0EW on line 17 c b4 a5 Notice: Undefined variable: i in /in/3t0EW on line 17 c b5 a6 Notice: Undefined variable: i in /in/3t0EW on line 17 c b6 a7 Notice: Undefined variable: i in /in/3t0EW on line 17 c b7 a8 Notice: Undefined variable: i in /in/3t0EW on line 17 c b8 a9 Notice: Undefined variable: i in /in/3t0EW on line 17 c b9 a10 Notice: Undefined variable: i in /in/3t0EW on line 17 c b10
Output for 7.3.32 - 7.3.33
a1 c b1 a2 c b2 a3 c b3 a4 c b4 a5 c b5 a6 c b6 a7 c b7 a8 c b8 a9 c b9 a10 c b10
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '$i' (T_VARIABLE) in /in/3t0EW on line 8
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
Parse error: syntax error, unexpected T_VARIABLE in /in/3t0EW on line 8
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 T_VARIABLE in /in/3t0EW on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/3t0EW on line 8
Process exited with code 255.
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269.34 ms | 401 KiB | 343 Q