function SystemNodeProvider::getNodeFromSystem

Returns the system node, if it can find it

1 call to SystemNodeProvider::getNodeFromSystem()

SystemNodeProvider::getNode in vendor/ramsey/uuid/src/Provider/Node/SystemNodeProvider.php

Returns a node ID

File

vendor/ramsey/uuid/src/Provider/Node/SystemNodeProvider.php, line 73

Class

SystemNodeProvider

SystemNodeProvider retrieves the system node ID, if possible

Namespace

Ramsey\Uuid\Provider\Node

Code

protected function getNodeFromSystem() : string {
    static $node = null;
    if ($node !== null) {
        return (string) $node;
    }
    // First, try a Linux-specific approach.
    $node = $this->getSysfs();
    if ($node === '') {
        // Search ifconfig output for MAC addresses & return the first one.
        $node = $this->getIfconfig();
    }
    $node = str_replace([
        ':',
        '-',
    ], '', $node);
    return $node;
}