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function test()

{

echo "coroutine starts", PHP_EOL;

$result = yield select(null, null, null, 0.5);

echo "coroutine ends, selected: ", $result, PHP_EOL;

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}

// Æô¶¯Ð­³Ì

go(function () {

test();

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Coun(function () {

$server = new Server('0.0.0.0', 9501, SWOOLE_BASE);
$server->on('Connect', function ($server, $fd) {
    echo "Client $fd connected

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“;

});
$server->on('Receive', function ($server, $fd, $from_id, $data) {
    echo "Client $fd: $data

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    $server->send($fd, "Server received 

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});
$server->on('Close', function ($server, $fd) {
    echo "Client $fd closed

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“;

});
$server->start();

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});

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go(function () {

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});

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