ldap_dn2ufn

This function will convert "cn=bryan,ou=users,ou=admin,o=apachetoolbox" to "bryan,users,admin,apachetoolbox".

Don't know if anyone is interested in this, but this is a modified and more dynamic version of the posting below. Since ldap_dn2ufn takes ',' as delimiter for the UFNs, we'll also use it here. $pHowToBuild specifies, how the DN is going to be build. Short example:$myUFN = ldap_dn2ufn("cn=naaina, ou=container1, ou=container2, ou=container3, o=private, c=de");echo $myUFN . "\n"; // will return "naaina, container1, container2, container3, private, de"$myDN = $ldapObject->conv_ufn2dn($myUFN);echo $myDN . "\n"; // will return "cn=naaina,ou=container1,ou=container2,ou=container3,o=private,c=de"For the object name, $pHowToBuild["object"] is going to be used as prefix - for containers $pHowToBuild["container"] and for the last n elements $pHowToBuild["last"].<?php  function ldap_ufn2dn (   $pUFN,   $pDelimiter = ",",   $pHowToBuild = array(    "object" => "cn",    "container" => "ou",    "last" => array("o", "c")   )  )   {   $resultDN = null;      if(!empty($pUFN)) {     /* Check $pHowToBuild */     if(is_array($pHowToBuild)) {        /* Check if required keys are existent */       if(array_key_exists("object", $pHowToBuild) &&          array_key_exists("container", $pHowToBuild) &&          array_key_exists("last", $pHowToBuild))        {         $ufnArray = explode($pDelimiter, $pUFN);         $ufnLast  = count($ufnArray) - count($pHowToBuild["last"]);          /* Remove empty values */                   foreach($ufnArray as $objKey => $objVal)           if(empty($objVal))             array_splice($ufnArray, $objKey, 1);                  /* Now build the DN ... */         foreach($ufnArray as $objKey => $objVal) {           $objVal = trim($objVal);                   if($objKey == 0) {              /* For the object */             $resultDN .= $pHowToBuild["object"] . "=" . $objVal . ",";           } elseif ($objKey >= $ufnLast) {              /* For last parts of the DN */             $resultDN .= $pHowToBuild["last"][$objKey - $ufnLast] . "=" . $objVal;             if(($objKey - $ufnLast - 1) != 0) {               $resultDN .= ",";             }           } else {              /* For containers */             $resultDN .= $pHowToBuild["container"] . "=" . $objVal . ",";           }         }       }      }       }       return $resultDN;  }?>

The function of bryan will only work if you start with an Organization and using only an Organizational Unit as a container and the object is an CN.For example:$DN = "CN=DNS,CN=Authorized Login Methods,CN=Security";echo ($DN = ldap_dn2ufn($DN)) . "\n";echo ($DN = ldap_ufn2dn($DN)) . "\n";will echo:DNS,Authorized Login Methods,SecurityCN=DNS,OU=Authorized Login Methods,O=Security

function ldap_unf2dn($unf,$delimeter=".") {
 $seperated = explode($delimeter,$unf); //split the unf up by the given delimeter
 $LastKey=count($seperated)-1;          //0 is the first key to total-1 would be the last key               
 foreach($seperated as $key => $value) {
  if ($key == 1) {              //first variable is the CN
   $dn="${dn}cn=$value,";
  } elseif ($key == $LastKey) { //last variable, so it's the O
   $dn="${dn}o=$value";
  } elseif ($value == "") {     //value is blank, so continue
   continue;
  } else {                      //just a typical OU
   $dn="${dn}ou=$value,";
  }
   
 };
return $dn;

}

$unf=".bryan.users.admin.apachetoolbox"; 
$dn=ldap_unf2dn($unf);
print "$dn" // will give me "cn=bryan,ou=users,ou=TS,o=apachetoolbox"