抱一点期望，有热心人能帮我看看socket的问题
想实现这样的功能：
向整个局域网发送广播，
然后获取全部的返回信息。
$socket = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);socket_set_option($socket, SOL_SOCKET, SO_BROADCAST, 1);$message="1000";@socket_sendto($socket,$message,strlen($message),0,"255.255.255.255",6000);$ip="";$port=6000;@socket_recvfrom($socket,$message,0,0,$ip,$port);
广播好像成功了，但是接收的代码好像有问题，上述代码会停不下来
其原因是有的ip没有返回结果，这个代码好像会一直等
我改为不等，但是所有返回结果都抓取不到了……
希望有热心人帮忙看看
回复讨论(解决方案)
是否成果应检查 socket_sendto 的返回值
参数 addr 好像不对吧？ udp 方式应该是网段的最后一个地址
比如
192.168.5.0/24
那么网段为 192.168.5.0 掩码 255.255.255.0 广播地址为 192.168.5.255
socket_recvfrom 是侦听，好像你的 $ip 是空的嘛
版主很给力 听版主的肯定没错
谢谢版主的回复
我需要全网段广播，如果有人回应，我希望获取这个回应
$ip是空的，好像是可以这样传参的，因为不确定哪个ip会回应
（比我我喊，谁有钱借我点？可能会有2个人答应，我这里有。我就想得到他们答应的内容）
或许有其他的写法？
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