pid_sendto()

int pid_sendto ( int $pid, int/string $buf [ , int $len, int $flags, string $addr, int $port ] )

Description

pid_sendto() transmits $len bytes of data from $buf through UDP $pid to the $port at the address $addr.

※ available F/W version : all

Parameters

$pid - the valid UDP device PID created with pid_open()
$buf - the source buffer to send
$len - the number of bytes to send
It sends the size of the $buf bytes if this field is omitted (integer: 8 bytes, string: MAX_STRING_LEN)
$flags - This field should be 0
$addr - the peer host’s IP address
This field can be set by using pid_ioctl() and it can be omitted in this case. (Refer to the following examples)
$port - the peer host’s UDP port number
This field can be set by using pid_ioctl() and it can be omitted in this case. (Refer to the following examples)

Return values

Returns the number of bytes sent, PHP error on error

Examples

<?php
$buf = "Hello PHPoC!";
$peer_addr = "10.3.0.10";
$peer_port = 1470;

$pid = pid_open("/mmap/udp0");
pid_ioctl($pid, "set dstaddr $peer_addr");
pid_ioctl($pid, "set dstport $peer_port");

$wlen = pid_sendto($pid, $buf);
echo "udp sent: $wlen bytes\r\n";
?>

<?php
$buf = "Hello PHPoC!";
$peer_addr = "10.3.0.10";
$peer_port = 1470;

$pid = pid_open("/mmap/udp0");
pid_bind($pid, "", 1470);

$wlen = pid_sendto($pid, $buf, strlen($buf), 0, $peer_addr, $peer_port);
echo "udp sent: $wlen bytes\r\n";
?>

Remarks

None

< pid_send()

pid_write() >