Most of the modules in swoole can only be used in the CLI command line environment. Only the swoole_client with synchronization blocking can be used in the php-fpm or apache environment.
Sync swoole_client
$client = new swoole_client(SWOOLE_SOCK_TCP); //同步阻塞
$client->connect('127.0.0.1', 9501) or die("connect failed\n");
$client->send(str_repeat("A", 600));
$data = $client->recv(700, 0) or die("recv failed\n");
echo "recv: " . $data . "\n";(Recommended learning: swoole video tutorial)
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