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19 years ago
Since PHP doesn't have a nice snmptable-like function... here is a quick-and-dirty hack that works for me. Works on complete and sparse tables. The example oids are for the route (complete) and interface (often sparse) tables.

<?php
    $a = snmptable("10.1.1.1", "public", ".1.3.6.1.2.1.4.21") or die("error");
    print_r($a);
    $a = snmptable("10.1.1.1", "public", ".1.3.6.1.2.1.2.2") or die("error");
    print_r($a);

function snmptable($host, $community, $oid) {
    // TODO: get original state and restore at bottom
    snmp_set_oid_numeric_print(TRUE);
    snmp_set_quick_print(TRUE);
    snmp_set_enum_print(TRUE); 

    $retval = array();
    $raw = snmprealwalk($host, $community, $oid) or die("snmptable: unable to walk OID $oid");

    $prefix_length = 0; 

    foreach ($raw as $key => $value) {
        if ($prefix_length == 0) {
            // don't just use $oid's length since it may be non-numeric
            $prefix_elements = count(explode('.',$oid));
            $tmp = '.' . strtok($key, '.');
            while ($prefix_elements > 1) {
                $tmp .= '.' . strtok('.');
                $prefix_elements--;
            }
            $tmp .= '.';
            $prefix_length = strlen($tmp);
        }
        $key = substr($key, $prefix_length);
        $index = explode('.', $key, 2);
        isset($retval[$index[1]]) or $retval[$index[1]] = array();
        isset($firstrow) or $firstrow = $index[1];
        $retval[$index[1]][$index[0]] = $value;
    }

    // check for holes in the table and fill them in
    foreach ($retval[$firstrow] as $key => $tmp) {
        foreach($retval as $check => $tmp2) {
            if (! isset($retval[$check][$key])) {
                $retval[$check][$key] = '';
            }
        }
    }

    return($retval);
}
?>
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