how to dynamically add values to an array

Question

Here is the working script with hard coded values:

$subject->currentCert['tbsCertificate']['extensions'][] = array(
   'extnId' => 'id-ce-subjectAltName',
   'critical' => false,
   'extnValue' => array(
      array('dNSName' => 'www.domain1.com'),
      array('dNSName' => 'www.domain2.com')
   )
);

I would like to update the above script (extnValue section only) to automatically take values from a another array called $OPTIONS["altnames"]

First I convert the following string to an array

$sans = 'www.domain1.com, www.domain2.com';

I converted the string to an array $OPTIONS["altnames"] with the following code:

$OPTIONS["altnames"] = array();
if (    !empty($sans)   ) {
    if (strpos($sans,",") !== false) {
        $sans = str_replace(" ", "", $sans); //remove spaces
        $sans = explode(",", $sans); //strip each value after comma to array

        foreach ($sans as $value) {
        array_push($OPTIONS["altnames"], $value);
        }
    }
}

Not sure what to do next

I guess you are looking for the array_merge() function? php.net/manual/en/function.array-merge.php — arkascha
– arkascha, Commented Sep 18, 2015 at 17:05
Get rid of the strpos() check. What if $sans just has one name with no comma, don't you want to put that into the options? — Barmar
– Barmar, Commented Sep 18, 2015 at 17:06
@barmar, yes i do want to add it.. ultimately, i want to be able to port over any values in $OPTIONS array to 'extnValue' array in this format array('dNSName' => 'www.domain1.com'), — user3436467
– user3436467, Commented Sep 18, 2015 at 17:08

Barmar · Accepted Answer · 2015-09-18 17:12:05Z

1

You need to add another level of array in the extnValue array when you copy it from $OPTIONS['altnames']:

$extnValues = array();
foreach ($OPTIONS['altnames'] AS $name) {
    $extnValues[] = array('dNSName' => $name);
}
$subject->currentCert['tbsCertificate']['extensions'][] = array(
   'extnId' => 'id-ce-subjectAltName',
   'critical' => false,
   'extnValue' => $extnValues
);

answered Sep 18, 2015 at 17:12

Barmar

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