Parse Interface File for Linux, written for @patschi

parse_interface.php

<?php
function parse_interface($data) {
	// remove comments
	$data = preg_replace('~\#.*$~m', "\n", $data);

	preg_match_all('~\nauto\s+(\w+)\niface \1 inet (\w+)\n([ \t]+.+\n)*~', $data, $m, PREG_SET_ORDER);
	$result = [];

	foreach ($m as $v) {
		$iface = [];
		$iface['auto'] = $v[1];
		$iface['inet'] = $v[2];
		if (isset($v[3])) $iface['params'] = parse_params($v[0]);
		$result[] = $iface;
	}
	return $result;
}

function parse_params($params) {
	$rparams = [];
	preg_match_all('~^\s+([\w-]+)\s+(.+)$~m', trim($params), $m, PREG_SET_ORDER);
	foreach ($m as $k) {
		$rparams[$k[1]] = $k[2];
	}
	return $rparams;
}