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<?php function nums() { for ($i = 0; $i < 5; ++$i) { //get a value from the caller $cmd = (yield $i); var_dump('cmd', $cmd); if($cmd == 'stop') { return;//exit the function } } } $gen = nums(); foreach($gen as $v) { if($v == 3) { $send = $gen->send('stop'); var_dump("send ",$send); } //if (isset($send)) var_dump($send); echo "--{$v}\n"; }
Output for 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
--0 string(3) "cmd" NULL --1 string(3) "cmd" NULL --2 string(3) "cmd" NULL string(3) "cmd" string(4) "stop" string(5) "send " NULL --3
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '$i' (T_VARIABLE) in /in/RicDL on line 6
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/RicDL on line 6
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/RicDL on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/RicDL on line 6
Process exited with code 255.
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207.51 ms | 401 KiB | 315 Q