How can one correctly convert a byte array to a string for sending data over UDP in PHP?

When sending data over UDP in PHP, you need to convert a byte array to a string to ensure the data is transmitted correctly. To do this, you can use the `pack()` function in PHP to pack the byte array into a binary string. This binary string can then be sent over UDP. 

// Convert byte array to a string for sending data over UDP
$byteArray = [0x48, 0x65, 0x6C, 0x6C, 0x6F]; // Example byte array
$binaryString = call_user_func_array('pack', array_merge(['C*'], $byteArray));

// Send the binary string over UDP
$socket = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
socket_sendto($socket, $binaryString, strlen($binaryString), 0, 'udp://127.0.0.1', 1234);
socket_close($socket);

Keywords

byte array string conversion UDP data sending PHP

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