简单实用socket

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@socket_set_option($socket, SOL_SOCKET, SO_RCVTIMEO,array("sec"=>10, "usec"=>0));当socket_read得不到响应，这里设置时间可以跳过不会陷入死循环
5 r5 q1 v2 l( |) |# Y现在socket读写数据的流程是这样的：

$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
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( q) V0 a1 m2 c8 Q. f# usocket_set_option($socket,SOL_SOCKET,SO_RCVTIMEO,array("sec"=>60, "usec"=>0 ) );
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socket_connect($socket, IP, PORT);
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% j: B. k! C6 Vsocket_write($socket, $strxml, strlen($strxml);
$back = socket_read($socket, 8192);

, ?9 J! v. e7 V+ q; I3 nsocket_read有时候收不到返回数据，应该是超时了，如何修改超时时间？
socket_set_option($socket, SOL_SOCKET, SO_RCVTIMEO,array("sec"=>3, "usec"=>0));//接受超时
socket_set_option($socket, SOL_SOCKET, SO_SNDTIMEO,array("sec"=>2, "usec"=>0));//发送超时
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https://blog.csdn.net/sn_qmzm521/article/details/80756396
* S! N: J% G- I" _* q+ L' w0 r; thttps://blog.csdn.net/Hiking_Tsang/article/details/84788448

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