Radu Antohi.com

This modification allows to offer deeplinks in your phpld directory. It is a safe modification but you are better off backing up the database and the following files:
include/tables.php
/detail.php
submit.tpl
detail.tpl

First: we have to add additional fields in the PLD_LINK table:

1. Open include/tables.php
FIND:

'RECPR_EXPIRED' => 'L NOTNULL DEFAULT 0'

REPLACE BY:

'RECPR_EXPIRED' => 'L NOTNULL DEFAULT 0' ,
'TITLE1' => 'C(255) NULL' ,
'URL1' => 'C(255) NULL' ,
'TITLE2' => 'C(255) NULL' ,
'URL2' => 'C(255) NULL' ,
'TITLE3' => 'C(255) NULL' ,
'URL3' => 'C(255) NULL' ,
'TITLE4' => 'C(255) NULL' ,
'URL4' => 'C(255) NULL' ,
'TITLE5' => 'C(255) NULL' ,
'URL5' => 'C(255) NULL'

2. NOW rerun the install script by pointing to install/index.php, this will update the table structure.

Second: Modify the submit form:

in submit.tpl
FIND:

<tr>
   <td class="label">{l}Description{/l}:</td>

ABOVE it, ADD:

<tr>
    <td class="label">TITLE 1</td>
    <td class="field"><input type="text"
 name="TITLE1" value="{$TITLE1|escape|trim}"
 size="40" maxlength="255" class="text"/></td>
  </tr>
  <tr>
    <td class="label">URL 1</td>
    <td class="field"><input type="text"
 name="URL1" value="{$URL1|escape|trim}"
 size="40" maxlength="255" class="text"/></td>
  </tr>
  <tr>
    <td class="label">TITLE 2</td>
    <td class="field"><input type="text"
 name="TITLE2" value="{$TITLE2|escape|trim}"
 size="40" maxlength="255" class="text"/></td>
  </tr>
  <tr>
    <td class="label">URL 2</td>
    <td class="field"><input type="text"
 name="URL2" value="{$URL2|escape|trim}"
 size="40" maxlength="255" class="text"/></td>
  </tr>
  <tr>
    <td class="label">TITLE 3</td>
    <td class="field"><input type="text"
 name="TITLE3" value="{$TITLE3|escape|trim}"
 size="40" maxlength="255" class="text"/></td>
  </tr>
  <tr>
    <td class="label">URL 3</td>
    <td class="field"><input type="text"
 name="URL3" value="{$URL3|escape|trim}"
 size="40" maxlength="255" class="text"/></td>
  </tr>
  <tr>
    <td class="label">TITLE 4</td>
    <td class="field"><input type="text"
 name="TITLE4" value="{$TITLE4|escape|trim}"
 size="40" maxlength="255" class="text"/></td>
  </tr>
  <tr>
    <td class="label">URL 4</td>
    <td class="field"><input type="text"
 name="URL4" value="{$URL4|escape|trim}"
 size="40" maxlength="255" class="text"/></td>
  </tr>
  <tr>
    <td class="label">TITLE 5</td>
    <td class="field"><input type="text"
 name="TITLE5" value="{$TITLE5|escape|trim}"
 size="40" maxlength="255" class="text"/></td>
  </tr>
    <tr>
    <td class="label">URL 5</td>
    <td class="field"><input type="text"
 name="URL5" value="{$URL5|escape|trim}"
 size="40" maxlength="255" class="text"/></td>
  </tr>

Finally Show the additional links in the details page.
To do so, we have to modify detail.php and detail.tpl

1. in detail.tpl
FIND:

<tr>
<td class="label">{l}Description{/l}:</td>
<td class="smallDesc" align="left">
{$DESCRIPTION|escape|trim}</td>
</tr>

BELOW, ADD:

<tr>
<td class="label">{l}Products/Services:{/l}</td>
<td class="smallDesc" align="left">
<a href="{$URL1|escape|trim}">
{$TITLE1|escape|trim}</a>&nbsp;
<a href="{$URL2|escape|trim}">
{$TITLE2|escape|trim}</a>&nbsp;
<a href="{$URL3|escape|trim}">
{$TITLE3|escape|trim}</a>&nbsp;
<a href="{$URL4|escape|trim}">
{$TITLE4|escape|trim}</a>&nbsp;
<a href="{$URL5|escape|trim}">
{$TITLE5|escape|trim}</a>&nbsp;
</td>
</tr>

2. in detail.php
FIND:

$data['META_DESCRIPTION'] = $rdata['META_DESCRIPTION'];

BELOW it, ADD:

$data['TITLE1']    = $rdata['TITLE1'];
$data['URL1']    = $rdata['URL1'];
$data['TITLE2']    = $rdata['TITLE2'];
$data['URL2']    = $rdata['URL2'];
$data['TITLE3']    = $rdata['TITLE3'];
$data['URL3']    = $rdata['URL3'];
$data['TITLE4']    = $rdata['TITLE4'];
$data['URL4']    = $rdata['URL4'];
$data['TITLE5']    = $rdata['TITLE5'];
$data['URL5']    = $rdata['URL5'];

You are done, now all plans (regular and featured will have the optional 5 additional links.
To modify the number of additional links the code above should be modified accordingly (straightforward).

It’s a pretty good how-to guide, thanks rakCha Blog for the tutorial.