简单实用socket

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@socket_set_option($socket, SOL_SOCKET, SO_RCVTIMEO,array("sec"=>10, "usec"=>0));当socket_read得不到响应，这里设置时间可以跳过不会陷入死循环
: `) \1 R- J/ B  Q6 F4 i现在socket读写数据的流程是这样的：
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$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
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socket_set_option($socket,SOL_SOCKET,SO_RCVTIMEO,array("sec"=>60, "usec"=>0 ) );
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$ p+ \9 N3 I: Psocket_connect($socket, IP, PORT);
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6 U. m$ v& }% y" F3 H6 \, Ssocket_write($socket, $strxml, strlen($strxml);
; k* M1 a+ J2 @% L5 W9 T: g+ M( M1 X$back = socket_read($socket, 8192);

socket_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？
8 s. I( e- ?1 M1 l4 s! Q  J) hsocket_set_option($socket, SOL_SOCKET, SO_RCVTIMEO,array("sec"=>3, "usec"=>0));//接受超时
5 G$ t( U9 o6 gsocket_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
https://blog.csdn.net/Hiking_Tsang/article/details/84788448
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