PHP进制转换应用

<?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, "192.168.1.204", 1000)) {? //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
$RArray = str_split(str_replace(' ', '', $receiveStrHex), 2);? // 将16进制数据转换成两个一组的数组
echo "client:" . $receiveStrHex;
var_dump( $RArray);
echo $RArray[2];
}
socket_close($socket);? // 关闭Socket
?>