What potential risks are involved in running a broadcast-ping over a subnet in PHP?

Running a broadcast-ping over a subnet in PHP can potentially lead to network congestion, as it sends a broadcast message to all devices on the subnet. This can overwhelm the network and cause performance issues. To mitigate this risk, it is recommended to limit the scope of the broadcast-ping to specific IP addresses or use a more targeted approach to communicate with devices on the subnet.

<?php
// Limit broadcast-ping to specific IP addresses
$subnet = '192.168.1.';
for ($i = 1; $i <= 255; $i++) {
    $ip = $subnet . $i;
    // Send ping to specific IP address
}
?>