PHP 通过Socket收发十六进制数据的实现代码

<?php
$sendStr = '30 32 30 34 03 30 33'; // 16进制数据

$sendStrArray = str_split(str_replace(' ', '', $sendStr), 2); // 将16进制数据转换成两个一组的数组

$socket = socket_create(AF_INET, SOCK_STREAM, getprotobyname("tcp")); // 创建Socket

if (socket_connect($socket, "192.168.1.100", 8080)) { //连接
for ($j = 0; $j < count($sendStrArray); $j++) {
socket_write($socket, chr(hexdec($sendStrArray[$j]))); // 逐组数据发送
}

$receiveStr = "";
$receiveStr = socket_read($socket, 1024, PHP_BINARY_READ); // 采用2进制方式接收数据
$receiveStrHex = bin2hex($receiveStr); // 将2进制数据转换成16进制

echo "client:" . $receiveStrHex;
}
socket_close($socket); // 关闭Socket
?>