PHP implementation code for sending and receiving hexadecimal data through Socket_PHP tutorial

Recently I was doing related content about Socket communication under PHP, and found that many people on the Internet are learning about how to send and receive in hexadecimal. After some research, the code is as follows. Welcome to comment.

Copy code The code is as follows:

$sendStr = '30 32 30 34 03 30 33 '; // Hexadecimal data

$sendStrArray = str_split(str_replace(' ', '', $sendStr), 2); // Convert hexadecimal data into an array of two

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

if (socket_connect($socket, "192.168.1.100", 8080)) { //Connect
for ($j = 0; $j < count($sendStrArray); $j++) {
socket_write($socket, chr(hexdec($sendStrArray[$j]))); // Send data group by group
}

$receiveStr = "";
$receiveStr = socket_read($socket, 1024, PHP_BINARY_READ); // Receive data in binary format
$receiveStrHex = bin2hex($receiveStr); // will 2 Convert hexadecimal data to hexadecimal

                                                                                                                                                                                                          echo "client:" .



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http: //www.bkjia.com/PHPjc/328168.htmlTechArticleRecently I was doing related content about Socket communication under PHP and found that many people on the Internet are learning how to perform hexadecimal processing. After some research on sending and receiving, the code is as follows. Welcome to try it out. Copy the code The code is like...