(PHP 4 >= 4.1.0, PHP 5, PHP 7, PHP 8)
socket_sendto — Sends a message to a socket, whether it is connected or not
socket_sendto( Socket $socket, string $data, int $length, int $flags, string $address, ?int $port = null ): int|false
The function socket_sendto() sends length bytes from data through the socket socket to the port at the address address.
socketA Socket instance created using socket_create().
data The sent data will be taken from buffer data.
length length bytes from data will be sent.
flags The value of flags can be any combination of the following flags, joined with the binary OR (|) operator.
MSG_OOB | Send OOB (out-of-band) data. |
MSG_EOR | Indicate a record mark. The sent data completes the record. |
MSG_EOF | Close the sender side of the socket and include an appropriate notification of this at the end of the sent data. The sent data completes the transaction. |
MSG_DONTROUTE | Bypass routing, use direct interface. |
addressIP address of the remote host.
port port is the remote port number at which the data will be sent.
socket_sendto() returns the number of bytes sent to the remote host, or false if an error occurred.
| Version | Description |
|---|---|
| 8.0.0 | socket is a Socket instance now; previously, it was a resource. |
| 8.0.0 | port is nullable now. |
Example #1 socket_sendto() Example
<?php
$sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
$msg = "Ping !";
$len = strlen($msg);
socket_sendto($sock, $msg, $len, 0, '127.0.0.1', 1223);
socket_close($sock);
?>
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https://www.php.net/manual/en/function.socket-sendto.php