(PHP 8 >= 8.3.0, PHP 8)
socket_atmark — Determines whether socket is at out-of-band mark
Returns true
on success or false
on failure.
Example #1 Using socket_atmark() to set the source address
<?php// Create a new socket$sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);var_dump(socket_atmark($sock));// Closesocket_close($sock);?>